U-boat Archive - U-boat KTB - U-66 6th War Patrol

U-66 - 6th War Patrol

Translation by Jerry Mason with the help of Ken Dunn and Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Lorient	23 June 1942	Lorient	29 September 1942	99

Click the icon to download a KMZ file displaying the U-boat track, significant events and locations for this patrol. You must have Google Earth loaded on your computer to view this file. Download Google Earth here

Ships Attacked
Date	KTB Time	Position	Ship	Tons	Nationality	Convoy
9 Jul 42	20.42	26°57'N, 48°22'W	TRIGLAV	6,363	Yugoslavian
26 Jul 42	08.15	11°33'N, 60°39'W	TAMANDARÉ	4,942	Brazilian
28 Jul 42	00.40	11°33'N, 59°09'W	WEIRBANK	5,150	British
2 Aug 42		Port Castries St. Lucia	HMS MTB-339 (damaged by mine)	32	British
2 Aug 42		Port Castries St. Lucia	HMS MTB-342 (damaged by mine)	32	British
6 Aug 42	17.19	11°09'N, 57°33'W	ROZEWIE	766	Polish
29 Aug 42	02.37	10°27'N, 52°39'W	TOPA TOPA	5,356	American
30 Aug 42	09.26	10°51'N, 54°03'W	SIR HUON	6,049	Panamanian
30 Aug 42	19.31	11°33'N, 54°09'W	WEST LASHAWAY	5,637	American
31 Aug 42	14.17	11°33'N, 53°15'W	WINAMAC	8,621	British	TRIN-3
9 Sep 42	15.28 - 16.16	24°09'N, 50°39'W	PEIPING	6,390	Swedish

			Total = 49,338
Note: The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website. The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.

K r i e g s t a g e b u c h

= = = = = = = = = = = = = = = =

      of Unterseebootes "U 66"

               6th Patrol

Beginning: 27.5.1942

Ending    : 29.9.1942

                         Patrol in accordance with Operations Order 50.

                         Times: D.G.Z.

                         All naval squares.

                         Kommandant: Kapitänleutnant Markworth

                         Distribution: 2 x O.K.M.

1 x B.d.U.

1 x 2.A.d.Uboote.

1 x 2.Uflottille.

1 x 27. Uflottille

1 x Agru-Front.



© U-boat Archive 2023 - all rights reserved

Click the flag to view the above page from the original German KTB

- 1 -

07.05.42 Lorient A III

07.55 After return from the 5th patrol made fast A III.

Fuel oil transfer and discharge, provisions discharge, boat cleared.



08.05.42 Lorient, A III Keroman III

07.00 - 08.15 Boat shifted to Keroman, Hall III.



09.05.42 to

15.06.42 Lorient, Keroman III Shipyard time.



16.06.42 Lorient, Lorient, Keroman S III Boat shifted to S III.



17.06.42 Lorient, S III Munitions, water and fuel oil loading.



18.06.42 Lorient, S III - B VI - S II Shifted to B VI to shoot dummy torpedoes and for pier side testing. Shifted to S II, there took over drinking water and voltage equalization of all battery cells.



19.06.42 Lorient, S II- A II - S II Fuel and torpedo loading, shifted to A II, sea trial, diving test, degaussing, made fast S III, afterwards fuel oil loading.



20.06.42 Lorient, S II Voltage equalization of all battery cells, fuel oil loading, final adjustments and overhaul.



21.06.42 Lorient, S II - A II Shifted to A II, fuel oil loading, boat taken over.



22.06.42 Lorient, A II - S III Provisions loading, shifted to S III, mine loading.



23.06.42 Lorient, S III A II

08.00 Final trim test, afterwards made fast A II.

09.00 Fresh provisions loading.

10.00 Ready for sea.

10.35 Put to sea.

10.45 Taken in convoy.

12.18 L II Released from convoy, course 235°.

14.00 W 3, Sea 2-3, light overcast, Vis. clear

24.06.42

00.30 Heavy anti-aircraft fire over Lorient.

Sun and Moon Data 23.06.42

Sun and Moon Data 24.06.42

- 2 -

continued

24.06.42

00.30 Because chart outfitting is incomplete and depth sounder is out of service, return transit.

Radio Message: Position 06.00 hours Point L II "U-66"

Course 230°.

03.42 Course 53°.

03.43 Radio Message: Immediately report if and why beginning return transit.

04.00 W 3, Sea 2-3, light overcast, Vis. good

05.25 Radio Message: Depth finder out of service, chart outfitting incomplete. Return transit.    "U-66".

05.35 Radio Message: Escort positioned 06.00 hours L II.

06.30 Taken in convoy.

07.10 Anchored on the Roads.

08.00 W 2, Sea 2-3, light overcast, Vis. good

08.05 Anchor up.

09.08 Released from convoy.

09.58 to Lorient A II Made fast A II.

Day's run: 160 nm.

20.37 Fuel oil loading.

20.40 Put to sea from Lorient with "U-528".

20.55 Taken in convoy.

22.22 Released from convoy, course 233°.

22.37 Course 235°.

24.00 N 3, Sea 2, clear, Vis. good



25.06.42

01.15 Course 225°, "U-528" out of sight.

At the exit of the route fishing vessels lie on both sides.

04.00 NbyE 3-4, Sea 3, lightly cloudy, Vis. good

04.36 Dived to proceed submerged at depth A -30 meters.

08.00 BF 5558

12.00 BF 5576 Day's run: Surfaced      85 nm

                 Submerged 18.5 nm.

16.00 BF 5576

17.10 Deep diving test to depth A +30 meters.

20.00 BF 5811 Surfaced.

N 3, Sea 2-3, overcast, Vis. good

22.00 Crash dive for training.

24.00 BF 5736

26.06.42

04.00 BF 5729

07.26 Surfaced. Surfaced.

08.00 BF 5719

NNW 3, Sea 3, overcast, Vis. good

10.00 Crash dive for training, proceeded submerged at depth A -35 meters, course 260°.

12.00 BF 4963 Day's run: Surfaced 55 nm, Submerged 49 nm.

Sun and Moon Data 24.06.42

Sun and Moon Data 25.06.42

Sun and Moon Data 26.06.42

- 3 -

continued

26.06.42

16.00 Radio Message: . . . . 3) Markworth: Task no longer required, head for square ED 60. Destroy Operations Order 53.

Intention:

Transit within extended blockade area via the Azores to ED 60.

Operations Order No. 53 destroyed.

20.00 BF 4945

20.56 Surfaced.

23.05 Crash dive for training. Proceeded submerged.

24.00 BF 4869



27.06.42

04.00 BF 4859

08.00 BF 4873

10.10 Surfaced.

11.x9 Crash dive for training. Proceeded submerged.

12.00 BF 4874 Day's run: 48 nm, 50 nm.

14.32 BF 4795 Several strong detonations in quick succession. Apparently distant aircraft bombs. Heard in the entire boat. At periscope depth, also at depth 11 meters, nothing seen.

16.00 BF 4793

20.00 BF 4795

21.05 Surfaced.

22.00 BF 4795

NE 3, Sea 2-3, cloudy, Vis. medium

22.40 BF 4788 Crash dive for aircraft, apparently Handly-Page-Hamton, bearing 220°T, parallel course.

Proceeded submerged.

24.00 BF 4786



28.06.42

04.00 BF 4777

0x.02 Course 245°.

04.10 NE 3, Sea 2-3, heavy overcast, Vis. medium Surfaced.

08.00 BE 9325

NE 3, heavy overcast, Sea 3, Vis. medium

08.35 Crash dive for training.

12.00 BE 9346 Surfaced.

NE 3-4, Sea 3, overcast, hazy Day's run: Surfaced 78 nm, Submerged 48 nm.

13.15 Crash dive for training.

13.26 Surfaced.

16.00 BE 9283

NE 4, partial overcast, Sea 3-4, hazy

18.27 Crash dive for training.

18.34 Surfaced.

19.30 Crash dive for training.

19.55 Surfaced.

20.00 BE 9433

NNE 4, cloudy, Sea 3-4, Vis. medium

Sun and Moon Data 26.06.42

Sun and Moon Data 27.06.42

Sun and Moon Data 28.06.42

- 4 -

continued

28.06.42

22.08 Radio Message passing report: Serial Nos. 2 and 3 missing. BE 9435, high pressure weather, heavy haze.

                                                     - Markworth -

22.32 Radio Message: . . . . For Markworth missing Serial Nos. are settled.

24.00 BE 9452

ENE 3, Sea 2-3, partial overcast, Vis. clear



29.06.42

04.00 BE 9448

ENE 3, Sea 2-3, overcast, Vis. medium

07.00 Crash dive for training.

07.21 Surfaced.

08.00 BE 8694

ENE 3, Sea 3, overcast, Vis. medium

10.00 Switched to Ireland Circuit.

11.20 Crash dive for training with simulated malfunctions.

11.39 Surfaced.

12.00 BE 8745 Day's run: Surfaced 178 nm, Submerged 2 nm.

NE 3, overcast, Sea 2, Vis. medium

15.35 Crash dive for training.

15.55 Surfaced.

16.00 BE 8839

NE 3, Sea 2, overcast, Vis. medium

20.00 BE 8843

NE 3, Sea 2, broken cloud deck, Vis. medium

24.00 BE 8792

NE 3, Sea 2, heavily cloudy, Vis. medium



30.06.42

04.00 BE 8779

NbyE 3, long swell, overcast, Vis. medium

07.53 Crash dive for training.

08.00 CF 2221

NbyE 3, Sea 2, overcast, Vis. medium

08.15 Surfaced.

09.00 - 10.30 Artillery exercises.

12.00 CF 2155 Day's run: Surfaced 172 nm, Submerged 1.0 nm.

NbyE 3, Sea 2, broken cloud deck, Vis. medium

14.08 Crash dive for training.

14.37 - 15.48 Fire control training.

15.57 Surfaced.

16.00 CF 2154

N 2-3, Sea 2, slightly cloudy, Vis. 10 nm

20.00 CF 1365

NNW 2, cloudy, Sea 2, Vis. 10 nm

24.00 CF 1612

NbyW 1-2, Sea 2, cloudy, hazy



Sun and Moon Data 28.06.42

Sun and Moon Data 29.06.42

Sun and Moon Data 30.06.42

- 5 -

01.07.42

04.00 CF 1552

NNW 1-2, Sea 1-2, overcast, Vis. medium

08.00 CF 1544

WSW 2, Sea 2, lightly cloudy, Vis. 10 nm

12.00 CE 3659 Day's run: Surfaced 153 nm, Submerged 5 nm.

SbyW 2, Sea 2, heavily cloudy, Vis. medium

16.00 CE 3975

SSW 3, Sea 2-3, lightly cloudy, Vis. good

17.45 - 18.05 Test dive.

20.00 CE 3831

SSW 3, Sea 2-3, lightly cloudy, Vis. good

24.00 CE 3842

SSW 3, Sea 2-3, overcast, rain showers, Vis. low



02.07.42

04.00 CE 3765

WSW 3, Sea 2-3, clearing, Vis. medium

07.59 Crash dive for training, transit submerged.

08.00 CE 3782

SW 3, Sea 2-3, cloudy. light haze

08.46 - Combat roles, fire control training.

11.40 Surfaced

12.00 CE 3784 Day's run: Surfaced 140.5 nm, Submerged 11.x nm.

WSW 3-4, Sea 3, lightly cloudy, Vis. great

13.26 Crash dive for training.

13.30 Surfaced.

16.00 CE 5333

WSW 3-4, Sea 3, medium swell, lightly cloudy, Vis. great

20.00 CE 5352

WSW 4, Sea 3-4, medium swell, heavily cloudy, Vis. medium

24.00 CE 5345

W 4, Sea 3-4, heavily cloudy, Vis. changing



03.07.42

01.50 At Action Stations for training.

01.55 Secured from Action Stations.

04.00 CE 5291 Course 230°.

W 3-4, Sea 3, medium swell, partial overcast, Vis. changing

08.00 CE 5288

W 3, Sea 2-3, lightly cloudy, Vis. great

12.00 CE 5541 Course 235°.

W 3, Sea 2-3, lightly cloudy, Vis. great Day's run: Surfaced 160 nm, Submerged 7 nm.

13.00 CE 5463 Passed "Flores" at a distance of 32 nm.

16.00 CE 5467

WbyN 3-4, Sea 3, lightly cloudy, Vis. good

Sun and Moon Data 01.07.42

Sun and Moon Data 02.07.42

Sun and Moon Data 03.07.42

- 6 -

continued

03.07.42

17.42 Crash dive for training, combat role exercises.

18.55 Surfaced.

20.00 CE 5476

WbyN 3, Sea 3, cloudy, Vis. good

21.15 Radio Message: . . . . , Markworth . . . . report weather.

24.00 CE 5714

WbyN 2, Sea 1-2, long swell, cloudy, Vis. good



04.07.42

02.29 Radio Message Short Weather Signal: 38°N, 32°W, rising 1028 mb, +19°C, NW 1-2, 1/10 to 5/10, Cumulus/Cirrus, Vis. over 10 nm, Sea NW low.

                                                - Markworth -

04.00 CE 4964

WbyN 2, Sea 1-2, cloudy, Vis. good

08.00 CE 4972

W 2, Sea 1-2, overcast, Vis. medium

12.00 CE 7231 Day's run: Surfaced 163.5 nm, Submerged 8 nm.

SW 2-3, Sea 2, overcast, rain showers, Vis. changing

16.00 CE 7243

WNW 2, Sea 1-2, lightly cloudy, Vis. great

18.35 - 19.33 Fired at drifting buoy with machine gun C/30 and machine gun C/34, changing courses.

20.00 CE 7168 Explosive ammunition for the machine gun C/30 completely useless, of 20 shots 8 failures. Armor piercing munitions work properly.

WNW 2-3, Sea 1-2, heavily cloudy, Vis. great

20.24 Radio Message: . . . . Markworth 5 July 08.00 hours switch to Greenland Circuit.

24.00 CE 7185

NNW 2, Sea 1-2, cloudy, Vis. good



05.07.42

04.00 CE 7417

NNW 2, Sea 1, heavily cloudy, Vis. medium to low

08.00 CD 9656

NW 2, Sea 1-2, overcast, rain showers, Vis. greatly changing Switched to Greenland Circuit.

08.15 Crash dive for training. Combat role exercises.

10.28 Surfaced.

10.30 - 11.35 Shooting exercises.

12.00 CD 9681 Day's run: Surfaced 168 nm, Submerged 4 nm.

NW 2, Sea 2, overcast, Vis. good

16.00 CD 9835

NNW 1-2, Sea 1, clear, Vis. great

20.00 CD 9849

NW 1-2, light swell, lightly cloudy, Vis. good

Sun and Moon Data 03.07.42

Sun and Moon Data 04.07.42

Sun and Moon Data 05.07.42

- 7 -

continued

05.07.42

24.00 CD 9798 Course 225°.

NW 1-2, Sea 1, cloudy, Vis. great



06.07.42

Intention: Head for ordered square via EE 60 because heavy traffic is reported there.

04.00 DF 2325

W 1-2, swell 1, light overcast, hazy

08.00 DF 2348

W 1-2, swell 1, light overcast, Vis. good

12.00 DF 2534 Day's run: Surfaced 190 nm, Submerged 0 nm.

NW 1, Sea 0, Vis. great, heavily vloudy

16.00 DF 2554

W 1, light swell, cloudy, Vis. great

17.00 Crash dive for training.

17.43 Surfaced.

20.00 DF 2493

WNW 1, light swell, cloudy, Vis. great

24.00 DF 2755

WNW 1-2, swell 1, somewhat cloudy, Vis. good



07.07.42

04.00 DF 2777

NNW 1, swell, lightly cloudy, Vis. good

08.00 DF 4361

NNW 1, swell, heavily cloudy, Vis. good

12.00 DF 4378 Day's run: Surfaced 186 nm, Submerged 1.5 nm.

WSW 1-2, light swell, Vis. great, lightly cloudy

13.16 Test dive.

15.36 Surfaced.

16.00 DF 4562

WSW 1, swell, clear to lightly cloudy, Vis. great

19.21 Crash dive for training.

19.37 Surfaced.

20.00 DF 4582

WSW 1, light swell, lightly cloudy, Vis. good

24.00 DF 4578

NNE 1, swell, cloudy, Vis. good



08.07.42

04.00 DF 4762

NE 1, swell, cloudy, Vis. medium

08.00 DF 4776

N 1, swell, cloudy, Vis. good

12.00 DE 9335 Course 205°.

S 1, swell, cloudy, Vis. good Day's run: Surfaced 170 nm, Submerged 3 nm.

Sun and Moon Data 21.07.42

Sun and Moon Data 22.07.42

Sun and Moon Data 23.07.42

- 8 -

continued

08.07.42

16.00 DE 9391

NE 1, swell, cloudy, Vis. good

16.51 At Action Stations for training.

16.59 Crash dive for training. Went to depth A +0 meters.

17.00 - 18.20 Combat training.

18.30 Surfaced.

20.00 DE 9628

SSE 1-2, swell, cloudy, Vis. good

23.15 - 23.45 Artillery exercises.

24.00 DE 9672

ENE 2, Sea 1, cloudy, Vis. good

09.07.42

04.00 DE 9839

EbyS 2, Sea 1-2, cloudy, Vis. good

08.00 DE 9869

ESE 3, Sea 2, lightly cloudy, Vis. good

12.00 DQ 2236 Day's run: Surfaced 183 nm, Submerged 5 nm.

ENE 2-3, Sea 2, lightly cloudy, Vis. good

14.10 DQ 2363 Smoke cloud bearing 252°T.

Maneuvered ahead at GF. Steamer does not zig zag, steers 302 - 307°, general course 306°.

16.00 DQ 2329 At 19.30 hours am positioned directly ahead of him. Enemy speed by plotting 8.2 knots, by matching 8.5 knots.

ENE 3, Sea 2-3, lightly cloudy, Vis. good

19.41 Dived, to look at him closely. Steamer is suspicious in spite of straight course because he is on course for New York.

20.00 DE 9785 To Action Stations.

ENE 2-3, Sea 2, lightly cloudy, Vis. good Submerged attack.

Steamer has no neutrality markings, flies no flag, gray with brown bridge, on the stern a 7.5 cm cannon.

20.42 Double shot from tubes I and II because range is over 1000 meters. Steamer is estimated at 5000-6000 GRT.

Target angle = 85°, target speed = 9 knots, range = 1200 meters, depth = 3 meters.

1st hit forward mast - bridge; 2nd hit after mast. Afterwards a boiler explosion.

20.52 DE 9773 Steamer sunk.

According to statement of the Captain:

"TRIGLAV", 6363 GRT from Lobito for New York with manganese ore among other things. Captain believed U-boat risk first north of 30°N, therefore straight course.

21.45 Course 270°, both diesels HF.

22.15 Course 200°, diesel-electric.

23.05 Lifeboats out of sight bearing 70°T.

Sun and Moon Data 08.07.42

Sun and Moon Data 09.07.42

- 9 -

continued

09.07.42

24.00 DQ 2212 [typos - on this page all DO have been changed to DQ]

EbyS 2, Sea 1-2, light overcast, Vis. good



10.07.42

04.00 DQ 2245

SE 3-4, Sea 2-3, light overcast, Vis. medium

08.00 DQ 2433

SE 3-4, Sea 3, heavy overcast, Vis. medium

12.00 DQ 2456 Day's run: Surfaced 203.5 nm, Submerged 6.5 nm.

ESE 3, Sea 2-3, light overcast, Vis. good

13.47 Test dive.

14.15 Surfaced.

16.00 DQ 2722

E 3-4, Sea 2-3, light overcast, Vis. good

20.00 DQ 2757

EbyN 3-4, Sea 3, heavily cloudy, rain showers, Vis. medium

24.00 DQ 5114

E 3, Sea 2, cloudy, Vis. medium



11.07.42

04.00 DQ 4392

E 3-4, Sea 3, clear, Vis. good

08.00 DQ 4625

E 3-4, Sea 3, overcast, Vis. medium

12.00 DQ 4672 Day's run: Surfaced 189 nm, Submerged 1 nm.

EbyW 3, Sea 2-3, light overcast, Vis. good

16.00 DQ 4914

EbyS 3, Sea 2-3, lightly cloudy, Vis. good

20.00 DQ 4892

EbyS 3, Sea 2-3, lightly cloudy, Vis. good

20.41 Crash dive for training.

21.04 Surfaced.

24.00 DQ 7229

EbyS 3, Sea 2, cloudy, Vis. good



12.07.42

02.14 Radio Message: On 9 July DE 9773 "TRIGLAV" Lobito - New York, manganese. Question completion of task in accordance with outbound orders. DQ 7253, 178 cbm, trade wind weather. All naval squares.

                                            - Markworth -

04.00 DQ 7273

ESE 3, Sea 2-3, lightly cloudy, Vis. good

08.00 DQ 7544

ESE 3, Sea 2-3, lightly cloudy, Vis. good

09.36 Radio Message: Markworth task completion in naval square ED 69 in accordance with outbound orders.

12.00 DQ 7468 Day's run: Surfaced 189 nm, Submerged 1 nm.

ESE 3-4, Sea 3, cloudy, Vis. good

16.00 DQ 7753

ESE 3, Sea 3, cloudy, Vis. good

Sun and Moon Data 09.07.42

Sun and Moon Data 10.07.42

Sun and Moon Data 11.07.42

Sun and Moon Data 12.07.42

- 10 -

continued

12.07.42

20.00 DQ 7787

E 3-4, Sea 3, cloudy, Vis. good

24.00 EE 1142 [typo EF]

EbyN 4, Sea 3-4, lightly cloudy, Vis. good



13.07.42

04.00 EE 1177 [typo EF]

EbyS 4-5, Sea 4, cloudy, Vis. medium

08.00 EE 3665

EbyS 4-5, Sea 4, clear, Vis. medium

12.00 EE 3681 Day's run: Surfaced 192 nm, Submerged 0 nm.

EbyS 4-5, Sea 4, clear, Vis. changing, hazy

16.00 EE 3918

EbyS 4-5, Sea 4, clear, Vis. good

19.45 Course 190°.

20.00 EE 3896

E 3-4, Sea 3, clear, Vis. good

20.28 Crash dive for training. Went to depth A +0 meters, afterwards combat exercises.

21.32 Surfaced.

24.00 EE 6235

E 3, Sea 2, cloudy, Vis. good



14.07.42

00.10 Course 210°.

04.00 EE 6258

E 3, Sea 2, clear, Vis. good

08.00 EE 6512

EbyS 3, Sea 3, cloudy, Vis. changing

12.00 EE 6465 Day's run: Surfaced 167 nm, Submerged 2 nm.

EbyS 2-3, Sea 2-3, cloudy, Vis. medium

16.00 EE 6488

ESE 2-3, Sea 2, clear, Vis. good, somewhat hazy

17.11 Test dive.

17.28 At Action Stations for training.

18.07 Surfaced.

20.00 EE 6743

ESE 2-3, Sea 2, clear, Vis. good, hazy horizon

24.00 EE 6774

E 2, high swell, Sea 1-2, cloudy, Vis. changing



15.07.42

04.00 EE 5986 Course 318°.

NbyE 3, Sea 2-3, cloudy, Vis. medium

08.00 EE 5943

NE 2-3, Sea 2, cloudy, Vis. good

Sun and Moon Data 12.07.42

Sun and Moon Data 13.07.42

Sun and Moon Data 14.07.42

Sun and Moon Data 15.07.42

- 11 -

continued

15.07.42

12.00 EE 5832 Day's run: Surfaced 180.5 nm, Submerged 2.0 nm.

NE 2, Sea 1-2, cloudy, Vis. good

16.00 EE 5557

NNE 2, Sea 2, lightly cloudy, Vis. good

20.00 EE 5514

NE 1-2, Sea 1, cloudy, Vis. medium

24.00 EE 5183

N 2, Sea 1-2, rain showers, Vis. changing



16.07.42

04.00 EE 5115

NbyE 2, Sea 1-2, cloudy, Vis. medium

05.00 Course 210°.

08.00 EE 4362

NbyE 2, Sea 1-2, clear, Vis. good

12.00 EE 4384 Day's run: Surfaced 194 nm, Submerged 0 nm.

EbyS 2, Sea 1-2, cloudy, Vis. good

16.00 EE 4617

E 1-2, Sea 1, partial overcast, Vis. good

20.00 EE 4595

EbyS 1-2, swell 1, cloudy, Vis. good

22.55 Crash dive for training.

23.50 Surfaced.

24.00 EE 4825

EbyN 1-2, Sea 1, lightly cloudy, Vis. good



17.07.42

04.00 EE 4847

EbyN 1-2, Sea 1, clear to cloudy, Vis. good

08.00 EE 4769

E 2, Sea 1-2, clear, Vis. good, summer lightening

10.15 Dived to proceed submerged.

12.00 EE 7134 Intentions:

E 1-2, Sea 1, clear, Vis. good, summer lightening I want to have a look at Bridgetown/Barbados. Heading there on course 90°, lighthouse burns as in peacetime. From Santa Lucia strong searchlights shine.

At dawn I am positioned 6 nm west of Bridgetown and run submerged to within 2 nm. Heavy air patrol, fast land-based aircraft. We dive to depth A +0 meters. Off Bridgetown only loading sailing vessels under 100 tons. In the harbor the same impression. Moved off on course 270°.

Day's run: Surfaced 176 nm, Submerged 6.5 nm.

16.00 EE 7126

20.00 EE 7125

23.30 Course 330°.

Sun and Moon Data 15.07.42

Sun and Moon Data 16.07.42

Sun and Moon Data 17.07.42

- 12 -

continued

17.07.42

24.00 EE 7121



18.07.42

00.15 Surfaced.

04.00 ED 6999 Crossed the St. Vincent St Lucia Passage in the night. Where strong searchlights are, there must be something going on! However despite good visibility there is nothing to see.

N 2, Sea 1-2, clear, Vis. good, summer lightening

08.00 ED 6987

N 2, Sea 1-2, clear to cloudy, summer lightening, Vis. good

10.42 Dived to proceed submerged.

12.00 ED 6957 Day's run: Surfaced 81 nm, Submerged 35.5 nm.

N 2, Sea 1-2, cloudy, Vis. changing

16.00 ED 6948 By day proceeded submerged at the southern tip of St. Lucia. Here there is heavy air traffic. On land large new barracks, apparently aircraft training camp. Traffic only small sailing vessels and motorboats under land.

20.00 ED 6945

24.00 ED 6863

No traffic in the Passage.

Moved off, because searchlights reach 8-10 nm.



19.07.42

02.47 Surfaced.

04.00 ED 6861 Again cruised in the Passage. No traffic. Very strong searchlights around the island, shining intermittently.

N 1, Sea 1, lightly cloudy, Vis. good, summer lightening

08.00 ED 6896

NW 1-2, Sea 1, heavy overcast, Vis. medium, summer lightening

10.39 Closed again at dawn. Dived to proceed submerged.

12.00 ED 6945 Day's run: Surfaced 70 nm, Submerged 36 nm.

16.00 ED 6942 Proceeded close under the coast to Port Castries with the strong northwesterly current (up to 3 knots). A coastal steamer of about 800 tons lies in the Grand Cul De Sac Bay.

20.00 ED 6916

24.00 ED 6913 Went into the entrance in the evening twilight..



20.07.42

00.25 To Action Stations.

The harbor is like a "duck pond", only large sailing vessels are distinguished. In the middle there is a patrol vessel at the narrowest point. Mines are deployed according to plan, the first at 00.48 hours, one lies exactly in the channel off the barrier.

Mine laying on the surface would be impossible because a searchlight illuminates the entrance very often at irregular intervals.

The first three mines were laid proceeding by the forestem

Sun and Moon Data 17.07.42

Sun and Moon Data 18.07.42

Sun and Moon Data 19.07.42

Sun and Moon Data 20.07.42

- 13 -

continued

20.07.42
[moving ahead] then the boat proceeded by the the stern post [moving astern] drawing out of the 60 meter wide and between 12 and 17 meter deep channel and in so doing laid the last three TBM green. Last mine at 01.09 hours. Total laying time 21 minutes. Boat can also be held while moving astern very well if it is exactly balanced. Even AK reverse, which was required by the barrier presented no difficulties to the Engineering Officer. While moving astern the boat must lie absolutely on an even keel, because otherwise it cannot be held in 12-17 meters of water. For this purpose trimming is best done with soldiers.

02.42

02.44
Ran submerged up to the entrance of the Grand Cul De Sac Bay. Turned. After the searchlight from Port Castries had shined, surfaced, so that the conning tower hatch was just clear, to knock off the steamer, despite approaching to within 800 meters, nothing is seen. The moon is in the west, so that our silhouette is easily seen from land. Further penetration of the bay in darkness is not possible, because there is very little water, and the channel is very narrow. At the illumination of the searchlight again dived and moved off.

04.00 ED 6914 (Proceeding on the surface is not possible, because the searchlight illuminates approximately every 5 minutes for 2-3 minutes.)

Mining completed undetected.

04.14 Surfaced.

05.48 Radio Message: "U-66" Short Signal transmit ltiq, just now task completed.

07.05 Radio Message: Have completed mining in accordance with orders.                                            - U-66 -

08.00 ED 6825

SW 2-3, Sea 1, cloudy, rain showers, Vis. changing

10.46 Radio Message: Markworth operate in area ED 90 in accordance with "Heydemann" situation report.

Heydemann situation report:

3 days north of Tobago no traffic observed. In 17 July in Tobago-Passage sighted: Mornings 5 independents entering, 1 patrol vessel . . . . Evening departing tanker "San Caspar".

11.16 Dived to proceed submerged.

12.00 ED 6763 Day's run: Surfaced 57 nm, Submerged 35.5 nm.

SW 2-3, Sea 1, overcast, rain showers, Vis. medium

16.00 ED 6766

16.52 Surfaced.

17.37 Crash dive for training.

20.00 ED 6792

SSE 3, Sea 2-3, heavily cloudy, summer lightening, Vis. medium

20.10 Surfaced.

24.00 ED 9153

SSE 3, Sea 2-3, cloudy, Vis. medium, summer lightening



Sun and Moon Data 20.07.42

- 14 -

21.07.42

04.00 ED 9157

ESE 3, Sea 3, heavily cloudy, summer lightening, Vis. medium

08.00 ED 9418

SSE 3-4, Sea 3, cloudy, summer lightening, Vis. good

08.15 ED 9418 2 lights in succession bearing 180°T. They are 2 illuminated neutral steamers. The tanker "REMEDIOS", course 290° and a steamer whose name was not recognized, course 150°.

10.30 Steamer out of sight bearing 40°T.

11.14 Tanker out of sight bearing 320°T.

11.30 Course 135°.

12.00 ED 8661 Dived to proceed submerged.

SSE 3-4, Sea 3, heavily cloudy, Vis. changing Day's run: Surfaced 136 nm, Submerged 15 nm.

16.00 ED 8665

20.00 ED 8669

22.45 ED 8693 Went to depth A -10 meters for aircraft. Had course 35x°, 2 engines, high winged, slow.

23.35 ED 8693 Went to depth A +0 meters for aircraft.

24.00 ED 9471



22.07.42

00.30 Surfaced.

00.41 ED 9471 Crash dive for aircraft, course 350°. To depth A -50 meters.

00.45 Course 45°.

01.03 Surfaced.

04.00 ED 9446

EbyN 3-4, Sea 3, heavy overcast, Vis. medium, summer lightening

06.00 Course 135°.

08.00 ED 9456

E 3, Sea 1-2, lightly cloudy, Vis. good, summer lightening

09.52 - 10.52 Due to work on the over deck, course 105°.

10.52 Course 205°.

10.55 Course 90°.

11.21 Dived.

12.00 ED 9496 Day's run: Surfaced 78 nm, Submerged 24 nm.

EbyN 2, Sea 2, cloudy, Vis. good

13.25 Course 160°.

16.00 ED 9483

18.15 Surfaced.

19.02 ED 9486 Crash dive for aircraft bearing 70°T, course 160°.

20.00 ED 9486

EbyS 2, Sea 2, cloudy, Vis. good

24.00 ED 9731

Sun and Moon Data 21.07.42

Sun and Moon Data 22.07.42

- 15 -

23.07.42

01.18 Surfaced.

04.00 ED 9754

ESE 2-3, Sea 2, overcast, rain showers, Vis. medium, summer lightening

04.12 Course 260°.

05.17 - 10.36 On various courses cruising under land.

07.00 Lighthouse in sight bearing 210°T (Carupano).

07.40 Lighthouse out of sight bearing 150°T.

08.00 ED 9724

SE 3, Sea 2, overcast, Vis. good, summer lightening

10.36 Dived to proceed submerged.

12.00 ED 9727 Day's run: Surfaced 81 nm, Submerged 23 nm.

SE 2-3, Sea 2, heavy overcast, Vis. good

16.00 ED 9728

20.00 ED 8969

24.00 ED 8968

24.07.42

00.45 Surfaced.

03.20 ED 8931 Testigos abeam to starboard, range = 14 nm.

04.00 ED 8931

EbyN 3, Sea 3, heavily cloudy, rain showers, summer lightening, Vis. good Course 65°.

06.00 Course 90°.

08.00 ED 9472

ESE 3, Sea 2-3, heavily cloudy, Vis. good

11.56 Dived to proceed submerged.

12.00 ED 9483 Day's run: Surfaced 75 nm, Submerged 27.8 nm.

ESE 2, Sea 1, lightly cloudy, Vis. good

14.38 ED 9491

16.00 ED 9492

20.00 ED 9493

24.00 ED 9495

25.07.42

01.00 Surfaced.

02.30 ED 9467 Steamer lights in sight bearing 125°T. Dived.

02.46 To Action Stations. Steamer is the Spanish tanker "CAMPECHE". Course 310°.

03.30 Course 110°.

03.40 Surfaced.

04.00 ED 9468

EbyN 2-3, Sea 1-2, cloudy, Vis. good Steamer out of sight bearing 310°T.

08.00 ED 9584

ENE 2, Sea 1-2, overcast, Vis. medium

09.00 A parachute flare bearing 140°T.

Sun and Moon Data 23.07.42

Sun and Moon Data 24.07.42

Sun and Moon Data 25.07.42

- 16 -

continued

25.07.42

09.35 Searchlight bearing 170°T. (Entrance to Trinidad).

09.51 ED 9588 Shadow bearing 110°T. Turned away hard and on opposite course, because the shadow came out of the haze suddenly and was high out ahead of us. After a few minutes the shadow disappeared again. Therefore turned towards again. Nothing seen. After 10 minutes a small sailing vessel in sight abeam to starboard.

10.32 Course 70°.

11.24 Dived.

12.00 ED 9589 Day's run: Surfaced 86 nm, Submerged 29 nm.

E 2-3, Sea 2, heavily cloudy, Vis. medium

16.00 ED 9597

20.00 ED 9598

24.00 ED 9596



26.07.42

01.10 Surfaced.

01.47 Course 90°.

04.00 ED 9673

NE 4-5, Sea 4, cloudy. Vis. changing

06.29 Radio Message: . . . . 3) . . . . Markworth report situation.

06.58 ED 9692 Shadow bearing 60°T. Bow right. Came to course 255°, maneuvered ahead at HF and 2 x GF, general course 230°.

07.35 Shadow astern. To Action Stations.

07.39 Dived to attack submerged by the moon due to brightness.

08.00 ED 9694 Stern approach. Large steamer, therefore target angle = 80°, target speed = 9 knots, range = 1000 meters, depth = 3 meters. On diving I estimated target speed = 10 knots, by plotting 8 knots.

NE 5, Sea 4, overcast, Vis. medium

08.15 2 torpedoes shot. With first hit no effect, with second hit high black explosion column in white water column. Both hits aft 10 meters. Steamer remains lying with a list. Nothing heard on the 600-meter wave. In sound gear the propeller makes 64 RPM. Steamer slowly settles.

08.58 ED 9694 Surfaced. Steamer has heavy list, capsizes and sinks over the sternpost.

Appearance: Straight stem, from the top of the forward kingpost a double mast, kingpost just ahead of small bridge, low cutaway [lowered areas of a ship's side where the gunwale is at the same height as the deck], kingpost at the smokestack, kingpost, double mast and kingpost at the poop deck. Type "TJIBESAR".

11.25 Dived.

12.00 ED 9692 Day's run: Surfaced 71 nm, Submerged 28 nm.

EbyN 3-4, Sea 3-4, overcast, Vis. medium

12.21 Course 50°.

16.00 ED 9669

20.00 EE 7444

24.00 EE 7441 Course 0°.



Sun and Moon Data 21.07.42

Sun and Moon Data 22.07.42

Sun and Moon Data 23.07.42

- 17 -

27.07.42

01.01 Surfaced.

04.00 EE 7444 Course 105°. Set off to download torpedoes.

EbyS 2, Sea 2, cloudy, Vis. good

08.00 EE 7483

EbyN 2-3, Sea 2-3, cloudy, Vis. good

12.00 EE 7574 Day's run: Surfaced 96 nm, Submerged 23 nm.

ENE 3-4, Sea 3, cloudy, Vis. good

13.00 Course 65°.

13.50 Radio Message (situation report):

1) Except for three neutrals in Passage no traffic from 69 via 68 to 9779 and 95.

2) Just now in 9697 type "TJIBEAR" course 230°, sunk.

3) No sea, heavy air patrol in 69, 97 - 96.

2) 147 cbm, 9 + 8 torpedoes, trade wind 4, Vis. good. Missing Serial No. 230 of 18 July, 13 of 21 July, 74, 77, 78, 93.

5) 9690. All naval square ED.

                                                          - Markworth -

16.00 EE 7558

ENE 3-4, Sea 3, cloudy, Vis. good

19.57 EE 7563 Masthead bearing 150°T.

20.00 EE 7563 Maneuvered ahead, general course 260°. Steamer zig zags heavily and irregularly. Occasionally passes out of sight because visibility is heavily changing.

ENE 2, Sea 1-2, overcast, rain showers, high swell, hazy, Vis. changing

23.23 Dived for submerged attack. Both periscopes are very bad, although there is now good visibility, the steamer first comes in sight in the air search periscope at 6000 meters, even though I went to depth 12 meters.

24.00 EE 7584

E 2, long swell, Sea 1-2, heavily cloudy, Vis. medium



28.07.42

00.38 I shoot one torpedo at target angle 70°, as a result of the twilight I can no longer determine whether the target angle is acute or obtuse. Passed!

Target angle = 70°, target speed = 9 knots, range = 1200 meters, depth = 3 meters.

00.40 The second torpedo was shot at target angle = 90°, target speed = 9 knots, range = 1000 meters, depth = 2 meters.

Hit at the aim point aft 10 meters, heavy detonation column, apparently at the same moment a boiler explosion. Steamer settles deeper aft. Cannon was made ready and aimed at the periscope and rod antenna. Steamer does not transmit. After 37 minutes the bulkhead to the cargo hold breaks.

01.17

BE 7584
The steamer rights itself briefly and sinks quickly over the stern post. Steamer is like "ALANMOOR", on the forecastle a sprit for mine search gear. Has noticeably a lot of rafts in the rigging both fore and aft.

Moved off on course 70°.

04.00 EE 7596

E 2, Sea 1-2, overcast, Vis. medium, rain showers

Sun and Moon Data 27.07.42

Sun and Moon Data 28.07.42

- 18 -

continued

28.07.42

08.00 EE 7683

E 2-3, Sea 2, cloudy, Vis. good

11.38 - 11.59 Test dive.

12.00 EE 8445 Day's run: Surfaced 192 nm, Submerged 28 nm.

E 2, Sea 1-2, heavily cloudy, Vis. medium

14.00 New course 120°.

16.00 EE 8455

EbyN 3, Sea 2-3, lightly cloudy, Vis. good

20.00 EE 8574

ENE 3, Sea 2-3, heavily cloudy, Vis. good

24.00 EE 8822

ENE 2-3, Sea 2, cloudy, Vis. good



29.07.42

00.30 Downloaded torpedoes.

Due to the wind came to course 240°.

01.20 1st torpedo below decks.

04.00 EE 8817

ENE 2-3, Sea 2-3, cloudy, Vis. good

06.40 8th torpedo below decks.

Forward 6, aft 2 torpedoes transferred. Downloading presented no difficulties despite the swell. To transfer astern main ballast tank 7 was filled, 8 partially flooded and 2 blown.

08.00 EE 8752

EbyN 2-3, Sea 2, cloudy, Vis. good

09.40 Course 120°.

11.26 Test dive.

12.00 EE 8744 Day's run: Surfaced 182 nm, Submerged 0.2 nm.

EbyN 3, Sea 2-3, lightly cloudy, Vis. good

12.57 Surfaced.

14.00 Course 60°.

16.00 BE 8754

ENE 3-4, Sea 3, overcast, rain showers, Vis. medium, hazy horizon

20.00 EE 8738 Course 235°.

EbyN 4, Sea 3, cloudy, Vis. good

20.26 EE 8738 Two mastheads in sight bearing 20°. Turned towards. 2 patrol vessels come up quickly out of the haze.

20.28 EE 8738 Crash dive for Sunderland, flew close to the water and positioned with both vessels. Range = 8 nm.

Observed at periscope depth. Patrol vessels lie

Sun and Moon Data 28.07.42

Sun and Moon Data 29.07.42

- 19 -

continued

29.07.42

20.28 exactly towards me. Course 30°. Approaches to 4500 - 500 meters, then disappears in a rain squall. Nothing heard in the sound gear. Due to the Sunderland and unfavorable clouds remained submerged until 23.00 hours. Apparently a search group.

23.00 Surfaced.

23.55 Course 225°.

24.00 EE 8762

EbyN 3-4, Sea 3, overcast, rain showers, Vis. medium



30.07.42

02.20 A green star over the horizon bearing 170°T. Because I suspect that it is fired by an escort, turned towards it. Came to course 180°.

03.27 Came to course 240°. Search broken off.

04.00 BE 8757

ENE 3-4, Sea 3, heavily cloudy, Vis. good

05.00 Course 315°.

06.34 Radio Message: 28 July EE 7584 freighter 6500 GRT, course 260°, sunk. 29 July EE 8750 two patrol vessels with Sunderland, course 30°.

Intention: Via ED 9680 to operations area "Lassen". Downloaded 7 + 8 torpedoes, 134 cbm. Trade wind 3, Vis. changing. All naval squares.

                                                     - Markworth -

08.00 EE 8724

ENE 3, Sea 2-3, overcast, rain showers, Vis. medium

12.00 EE 7922 Day's run: Surfaced 146.5 nm, Submerged 8.0 nm.

ENE 2, Sea 1-2, overcast, rain showers, Vis. changing

15.09 Crash dive for training.

15.44 Surfaced.

16.00 EE 7647

E 2-3, Sea 2, cloudy, Vis. good, hazy horizon

20.00 EE 7534

E 2, Sea 1, clear to cloudy, Vis. good Course 250°.

23.05 EE 7543 Crash dive for aircraft. Biplane, land-based aircraft, medium altitude, bearing 340°T, course 160°. Went to depth A -20 meters.

23.07 Course 180°.

24.00 EE 7543

EbyN 1, Sea 1, cloudy, Vis. good



31.07.42

00.25 Surfaced.

04.00 EE 7453

EbyN 1-2, Sea 1, overcast, Vis. medium

08.00 EE 7445 Course 230°.

EbyN 1-2, Sea 1, heavily cloudy, rain showers, Vis. medium

Sun and Moon Data 29.07.42

Sun and Moon Data 30.07.42

Sun and Moon Data 31.07.42

- 20 -

continued

31.07.42

11.32 Crash dive for training. Proceeded submerged.

12.00 ED 9684 Course 180°.

NE 2, Sea 1-2, cloudy, rain showers, Vis. medium Day's run: Surfaced 190 nm, Submerged 4.7 nm.

16.00 ED 9921

20.00 ED 9687

24.00 ED 9688



01.08.42

01.00 Surfaced.

04.00 ED 9696

SE 4, Sea 3-4, rain showers, Vis. medium

08.00 EE 7477

SE 4-5, Sea 4, rain showers, overcast, Vis. medium

10.00 "Tobago" lighthouse [Scarborough Light?] in sight bearing 260°T.

11.22 Dived.

11.30 Course 135°.

12.00 EE 7721 Day's run: Surfaced 90 nm, Submerged 23.5 nm.

SE 4, Sea 3-4, overcast, Vis. medium

16.00 EE 7745

20.00 EE 7745

23.35 Course 0°.

24.00 EE 7745



02.08.42

01.13 Surfaced.

01.24 EE 7745 Crash dive for aircraft bearing 170°T. Went to depth A +0 meters. Flies towards us from astern. At 200 meters throws a parachute flare and turns away. Large land-based aircraft, single-engined.

01.25 Course 90°.

02.16 Surfaced.

02.30 EE 7745 Crash dive for aircraft bearing 80°T. Again throws a parachute flare 3-400 meters ahead of us. Over flies us at 80 - 100 meters altitude from ahead to port and throws 3 bombs, which detonate abeam to starboard. Went to depth A -30 meters.

02.47 Course 30°.

04.00 EE 7746

EbyN 2-3, Sea 2, heavily cloudy, Vis. medium

05.02 Surfaced.

05.13 Course 90°.

06.00 Course 65°.

08.00 EE 7746

EbyN Sea 3, cloudy, rain showers, Vis. changing

11.13 Course 90°.

11.25 EE 7577 Crash dive for aircraft bearing 250°T. Course west. Altitude about 100 meters, range = 7 nm.

12.00 EE 7577 Day's run: Surfaced 53 nm, Submerged 27.5 nm.

EbyN 3-4, Sea 3, cloudy, Vis. good

Sun and Moon Data 31.07.42

Sun and Moon Data 01.08.42

Sun and Moon Data 02.08.42

- 21 -

continued

02.08.42

14.20 Surfaced.

14.35 Course 110°.

16.00 BE 7587

ENE 3, Sea 2-3, heavily cloudy, Vis. medium

16.30 Course 45°.

19.25 BE 7591 Crash dive for aircraft bearing 150°T. Course West. Altitude about 800 meters, range = 4 nm.

20.00 EE 7591

ENE 3, Sea 2-3, rain showers, cloudy, Vis. changing

21.32 Surfaced.

23.15 Course 120°.

24.00 EE 7592

ENE 3, Sea 2-3, cloudy, Vis. medium



03.08.42

02.43 Radio Message from Lassen:

No further contact, course change probable, because the boat was detected by aircraft.

04.00 EE 7675

E 2, Sea 1-2, lightly cloudy, Vis. good

04.14 Radio Message (with date time group 00.20 hours):

Naval square EE 8772, 6-8 large steamers, course east, submerged due to aircraft. Pursuing.    Lassen.

Own operation on Lassen-convoy from this rear position without contact keeper holds little promise.

07.00 Course 30°.

08.00 EE 7921

E 2, Sea 1-2, lightly cloudy, Vis. good

12.00 EE 7681 Day's run: Surfaced 172.5 nm, Submerged 8.5 nm.

E 2, Sea 1-2, cloudy, Vis. good

16.00 EE 7626

ENE 2, Sea 1-2, clear, Vis. good

18.34 Course 170°.

20.00 EE 7633

EbyN 1-2, Sea 1, clear, Vis. good

24.00 EE 7669

E 2, Sea 1-2, clear, Vis. good



04.08.42

00.04 Course 190°.

03.05 Radio Message from Scholz:    [typo Scholtz - U-108]

3 August naval square EE 9476 sighted tanker course 270°, 13 knots.

Operating on this tanker in waiting position.

04.00 EE 7691

E 2, Sea 1-2, cloudy, Vis. good

04.35 Course 200°.

Sun and Moon Data 02.08.42

Sun and Moon Data 03.08.42

Sun and Moon Data 04.08.42

- 22 -

continued

04.08.42

05.30 Course 340°.

07.00 Course 200°.

07.47 Dived to listen. No sound bearings.

08.00 EE 7682

E 2, Sea 1-2, cloudy, Vis. good

08.02 Surfaced.

08.30 Course 0°.

10.00 Course 160°.

12.00 EE 7688 Day's run: Surfaced 179 nm, Submerged 0.3 nm.

EbyN 2, Sea 1-2. cloudy, Vis. good

16.00 EE 7953

EbyN 2, Sea 1-2, heavily cloudy, Vis. medium to good

18.00 EE 7967 Smoke cloud in sight bearing 310°T. Maneuvered ahead at 2 x GF.

18.45 Course 110°.

19.00 Dived.

19.10 To Action Stations.

20.00 EE 7945 Argentinean "JUNCAL" on course 110°.

EbyN 2, Sea 1-2, heavily cloudy, Vis. good, swell

21.10 In sound gear while submerged propeller sounds bearing 40°T. To periscope depth. Steamer range = 4000 meters, target angle = 40°.

Initiated submerged attack. Closed to about 2000 meters.

21.15 EE 7961 1st shot, Eto: target angle = 90°, target speed = 11 knots, range = 1500 meters, depth = 3 meters.

21.18 2nd shot, Ato: target angle = 100°, target speed = 11 knots, range = 1500 meters, depth = 2.5 meters.

Both passed. Plotting and bearing shift gave a speed of 10-11 knots.

May have under steered in the swell. In the boat for the first torpedo after a running time of 2200 meters several soldiers heard a weak detonation or impact. I myself observed a weak smoke cloud at the after edge of the bridge, if from a detonation was not observed because the periscope cut under. Steamer turned away and disappeared very slowly.

21.28 Secured from Action Stations.

22.05 Sound bearing growing stronger bearing 285°T. The same steamer with sharp target angle. Range = 6000-8000 meters. Initiated submerged attack.

Target angle misjudged. Target angle is very broad. Misled by the sound bearing growing larger.

Because steamer runs off exactly in the direction of the sun it is difficult to make out in the periscope. Steamer bridge and smokestack are still above the horizon. Suddenly out of sight, in the sound gear nothing more is heard.

22.05 It was a modern motor ship, with fast rotating propeller; 124 RPM. Silhouette like

Sun and Moon Data 04.08.42

- 23 -

continued

04.08.42

22.05 "ROYAL SCEPTRE" (5000 GRT). On the poop a 7.5 cm quite high, at longer range gives the impression of a shipboard aircraft. Forward of that a control center.

22.40 Surfaced. Pursued on search courses.

24.00 EE 7927

EbyN 2, Sea 1-2, cloudy, Vis. medium



05.08.42

00.28 Course 320°.

01.10 Dived to listen. No propeller sounds heard.

01.40 Course 110°.

02.04 Surfaced.

02.17 EE 7954 Crash dive for aircraft. Flies darkened, detected by the exhaust. Turns in our wake with throttled engines.

Went to depth A -30 meters.

02.29 Course 180°.

04.00 EE 7957

ENE 2, Sea 1-2, cloudy, Vis. medium

04.15 Surfaced.

08.00 EE 7994

EbyN 2, Sea 1-2, clear, Vis. medium

11.30 Crash dive for training.

12.00 EE 7999 Day's run: Surfaced 114 nm, Submerged 10 nm.

ENE 2, Sea 1-2, cloudy, Vis. good

13.22 Surfaced. Course 110°.

14.00 Course 20°.

16.00 EE 8772

NE 3, Sea 2-3, heavily cloudy, rain showers, Vis. changing

19.30 Course 180°.

19.44 Radio Message: . . . . 3) . . . . Markworth report situation.

20.00 EE 8751

NE 3, Sea 2-3, cloudy, Vis. good

22.00 Course 360°.

23.30 Course 180°.

24.00 EE 8757

ENE 3, Sea 2-3, cloudy, Vis. good



06.08.42

04.00 EO 2112 Course 0°.

EbyN 2, Sea 1-2, clear, Vis. good

06.46 Situation report:

Radio Message: Grenada Trinidad and Tobago nothing seen. 4 August naval square EE 7950 "JUNKAL", course 110°. Miss on freighter, course 290°. Forced off by night air. In Passage heavy night air. Aircraft bombs, assume "Dete" [radar]. Request EE 70 and 80. Trade wind 2, Vis. good.

                                                 - Markworth -

Sun and Moon Data 04.08.42

Sun and Moon Data 05.08.42

Sun and Moon Data 06.08.42

- 24 -

continued

06.08.42

08.00 EO 2113

EbyN 2, Sea 1-2, cloudy, Vis. medium

12.00 EE 8724 Day's run: Surfaced 156 nm, Submerged 2 nm.

EbyN 2-3, Sea 2, cloudy, Vis. medium

13.33 Radio Message: . . . . 2) Markworth attack area as requested.

15.49 EE 8717 Masthead in sight bearing 110°T. General course 305°.

16.00 EE 8717 Maneuvered ahead until 16.15 hours.

ENE 2-3, Sea 2, cloudy, Vis. good

16.26 Dived.

16.30 To Action Stations.

Shot from tube V at target angle = 90°, target speed = 11 knots, range = 2200 meters, depth = 2 meters.

17.19 Hit center. Broad detonation column. Steamer stops with a list.

17.31 Surfaced.

17.39 Steamer sunk.

Appearance:

Modern motor ship with Maier bow. 5 cm on a platform, 3 machine guns on the bridge. Captain came on board.

From his statement "REZEWIE" 766 GRT, piece goods from Para-Brazil via Trinidad for New York. Radio room, bridge and cannon position with 2 inches of armor.

I do not believe the Captain, because the steamer by the running time of the torpedo and the width in the periscope was over 100 meters long, while "REZEWIE" was only 60 meters long. Also a simple coastal steamer would not have such armor and equipment. Hold steamer as a 1500 - 2000 GRT motor ship.

18.32 During the interrogation of the Captain masthead or smokestack in sight bearing 175°T. Disappeared immediately in a rain squall. Pursued it.

18.32 Lifeboat out of sight bearing 340°T.

20.08 EE 8777

ENE 3, Sea 2, heavily cloudy, Vis. good

20.05 Radio Message (Wattenberg):

Enemy EE 9775, course 245°, 15 knots.

20.12 Radio Message from Wattenberg:

Two smokestack vessel in EE 9769. Course W, 15 knots. Am positioned in wake. Who wants bearing signals?

EE 8776 Vessel in sight bearing 50°T. Very difficult to make out. Might be an escort or similar vessel.

21.15 Radio Message: Request bearing signal from Wattenberg. Position 8774 with escort vessel.

                                              - Markworth -

Have the intention to operate on the steamer reported by Wattenberg.

Later vessel recognized as a U-boat. Because I am positioned in the sun, turned towards the U-boat. U-boat turns at the same time as us to that I am in a favorable attack position. Therefore dived.

To Action Stations.

Sun and Moon Data 06.08.42

- 25 -

continued

06.08.42

22.10 To Action Stations.

The U-boat does not come in sight again.

Recognized perfectly as not German, by the gun on the stern pointing aft and the conning tower. Possibly Italian by silhouette.

22.38 Surfaced. Nothing more seen. No bearing signals heard.

23.24 Radio Message from Wattenberg:

Last steamer position 19.30 hours naval square EE 8998, course 240°, 15 knots. No contact, suspect heading for EE 8860 after it gets dark.

23.56 Radio Message from Scholtz:

23.00 hours have contact EO 2266, 245°, 16 knots.

Operate on this.

24.00 EO 2142

SE 2, Sea 1-2, cloudy, Vis. good



07.08.42

00.24 Course 150°.

01.26 Radio Message: Markworth. Intend deployment to the west of the escort vessel. Please report changes of position.

                                                    - Wattenberg -

03.10 To Action Stations.

04.00 EO 2188

SE 2, Sea 1-2, cloudy, Vis. changing, sometimes hazy

04.50 Secure from Action Stations.

05.05 Course 330°.

07.14 Radio Message: Markworth from Wattenberg: Where is the escort?

Because I gave the location in the Radio Message 21.15 hours and have operated on the reported steamer, did not answer.

08.00 EO 2173

ESE 2, Sea 1-2, overcast, rain showers, Vis. bad changing

11.45 Dived.

12.00 EO 2114 Course 0°.

EbyS 2-3, Sea 2, overcast, Vis. bad, rain Day's run: Surfaced 200 nm, Submerged 3 nm.

13.27 Surfaced.

16.00 EE 8714

ENE 2-3, Sea 2, overcast, rain showers, Vis. medium

18.00 Course 30°.

19.00 EE 8711 Smoke cloud in sight bearing 40°T. Maneuvered ahead at GF.

22.00 EE 8716

NE 3, Sea 2-3, cloudy, Vis. good

22.40 Maneuver ahead ended.

22.45 Dived.

23.10 To Action Stations.

Freighter "RIO PRIMERO" Argentinean. Course 120°, 9 knots.

24.00 EE 8738

NE 3, Sea 2-3, overcast, Vis. good



Sun and Moon Data 06.08.42

Sun and Moon Data 07.08.42

- 26 -

08.08.42

00.10 Secure from Action Stations.

00.40 Surfaced.

00.55 Course 20°.

01.10 Course 60°.

01.50 Freighter lights out of sight bearing 130°T.

04.00 EE 8814

ENE 2, Sea 2, cloudy, Vis. good

08.00 EE 8588

ENE 2, Sea 2, clear, Vis. good

12.00 EE 8586 Day's run: Surfaced 154 nm, Submerged 5 nm.

ENE 2, Sea 1-2, cloudy, Vis. good

16.00 EE 8569

EbyN 3, Sea 3, cloudy, Vis. good

20.00 EE 8651

EbyN 3-4, Sea 3, cloudy, Vis. good

22.06 Course 90°.

23.03 Course 150°.

24.00 EE 8661

NE 3, Sea 2-3, cloudy, Vis. good



09.08.42

01.00 Course 250°.

04.00 EE 8639 Course 70°.

ENE 2, Sea 1-2, clear, Vis. good

08.00 EE 9417

ENE 2, Sea 1-2, cloudy, Vis. good

10.30 Course 30°.

12.00 EE 9415 Day's run: Surfaced 108 nm, Submerged 0 nm.

NE 2-3, Sea 2, cloudy, Vis. medium

13.00 Course 190°.

16.00 EE 9442

EbyS 2, Sea 1-2, overcast, Vis. medium

20.00 EE 9477

E 2-3, Sea 2, overcast, Vis. medium

24.00 EE 9741 Course 350°.

ENE 2, Sea 1-2, overcast, rain showers, Vis. changing



10.08.42

01.00 Course 60°.

04.00 EE 8969

ENE 3, Sea 2-3, overcast, Vis. medium

08.00 EE 8962

EbyN 3-4, Sea 3, cloudy Vis. good

10.00 Course 270°.

Sun and Moon Data 08.08.42

Sun and Moon Data 09.08.42

Sun and Moon Data 10.08.42

- 27 -

continued

10.08.42

12.00 EE 8954 Day's run: Surfaced 113 nm, Submerged 0 nm.

ENE 3-4, Sea 3, cloudy, Vis. good

14.00 Course 50°.

16.00 EE 8951

E 3-4, Sea 3, cloudy, Vis. good

19.54 Crash dive for training.

20.00 EE 8931

EbyN 3-4, Sea 3, Vis. changing, rain showers

20.21 Surfaced.

24.00 EE 9474

EbyN 3, Sea 2-3, cloudy,Vis. good



11.08.42

01.00 Course 240°.

04.00 EE 8698

ENE 3, Sea 2-3, cloudy, Vis. good

08.00 EE 8697

ENE 2-3, Sea 2, clear, Vis. good

12.00 EE 8927 Day's run: Surfaced 102 nm, Submerged 0.5 nm.

ENE 2-3, Sea 2, cloudy, Vis. good

13.00 Course 0°.

16.00 EE 8922

NE 3, Sea 2-3, cloudy, Vis. good

20.00 EE 8655

NE 3, Sea 2-3, cloudy, Vis. good

24.00 EE 8622

NNE 3, Sea 2-3, cloudy, Vis. good



12.08.42

01.00 Course 35°.

04.00 EE 8389

NNE 2, Sea 1-2, cloudy, Vis. medium

08.00 EE 8389

NNE 2, Sea 1-2, overcast, rain showers, Vis. changing

10.00 Course 160°.

12.00 EE 8634 Day's run: Surfaced 116 nm, Submerged 0 nm.

NbyE 2-3, Sea 2, cloudy, Vis. good

16.00 EE 8668

NbyE 2-3, Sea 2, cloudy, Vis. good

16.21 - 16.40 Test dive.

19.34 Radio Message: Boat in naval square EE and EO give not yet reported successes.

20.00 EE 9714

EbyS 1, Sea 1, cloudy, Vis. good

24.00 EE 9748

SSE 1-2, Sea 1, swell, clear Vis. good



Sun and Moon Data 10.08.42

Sun and Moon Data 11.08.42

Sun and Moon Data 12.08.42

- 28 -

13.08.42

00.34 - 00.55 Work on the over deck.

02.00 Course 90°.

04.00 EO 3112

E 1, swell, clear, Vis. good

04.12 Radio Message: 6 August sank "ROZEWIE" in 8717, course 305°, Trinidad-New York. 3 machine guns, 1 5 cm cannon, Captain on board. Possible Italian U-boat in 8774. 7 August "RIO PRIMERO" course 120° in 8738, since then nothing seen. 5 + 7 torpedoes, 94 cbm, trade wind weather, Vis. good, 8999. All naval square EE.

                                                     - Markworth -

08.00 EO 3112

SE 1, light swell, clear, Vis. good

10.00 Course 350°.

11.15 Crash dive for training.

11.32 Surfaced.

12.00 EE 9779 Day's run: Surfaced 118 nm, Submerged 1 nm.

SSE 1, light swell, cloudy, Vis. good

15.46 Radio Message: 1) Markworth report tonnage of sunken "ROZEWIE".

16.00 EE 9742

SSE 2, S 1, cloudy, Vis. good

16.58 Attempt to send tonnage report on frequency "12". Not heard.

20.00 EE 9477

SSE 1-2, long swell, cloudy, Vis. good

20.05 F.K.W.-transmitter [Fernverkehr-Kurzwellensender - Telefunken T200FKW39] out of service. Attempt to send tonnage report on "FTN" on K.W.-transmitter.

Not heard. Later the K.W.-transmitter fails. Reason not yet determined.

24.00 EE 8663

NE 1, long swell, cloudy, Vis. good



14.08.42

04.00 EE 9414 Course 20°.

NE 2, Sea 1, cloudy, Vis. good

08.00 EE 9411

NE 2, Sea 1, cloudy, Vis. good

11.03 Course 330°.

12.00 EE 9178 Day's run: Surfaced 119 nm, Submerged 0 nm.

NE 2, Sea 1, heavily cloudy, Vis. good

16.00 EE 8362 K.W.-transmitter again in service.

NE 2, Sea 1, cloudy, Vis. good

20.00 EE 5989

NNE 1-2, dwell 1, cloudy, Vis. good

24.00 EE 5943

NNE 1-2, Sea 1, cloudy, Vis. good



Sun and Moon Data 13.08.42

Sun and Moon Data 14.08.42

- 29 -

15.08.42

03.05 Attempted to send tonnage report on "od". Not heard.

04.00 EE 5942

E 1, light swell, cloudy, Vis. good

04.12 Radio Message: "ROZEWIE" 766 GRT. F.K.W. out of service, K.W. again in service.

                                                  - Markworth -

08.00 EE 5942

E 1, light swell, rain showers, heavily cloudy, Vis. changing

12.00 EE 5599 Day's run: Surfaced 124 nm, Submerged 0 nm.

ENE 1-2, Sea 1, cloudy, summer lightening, Vis. medium

14.00 Course 210°.

14.43 [Latitude of Tobago] Radio Message: . . . . 3) . . . . , Markworth. . . . surveillance north of latitude ED 9930. Objective 96.

15.20 Course 200°.

16.00 EE 5589

EbyS 1-2, Sea 1, lightly cloudy, Vis. good

20.00 EE 5855

ESE 1-2, Sea 1, cloudy, Vis. good

24.00 EE 5879

ESE 1-2, Sea 1, cloudy, Vis. good

16.08.42

04.00 EE 8241

ESE 1, swell, lightly cloudy, summer lightening, Vis. good

08.00 EE 8199

SE 2, Sea 2, heavily cloudy, rain showers, Vis. changing

12.00 EE 8453 Day's run: Surfaced 181 nm, Submerged 0 nm.

SE 2, Sea 1-2, heavily cloudy, rain showers, summer lightening, Vis. changing

13.05 Crash dive for training.

13.28 Surfaced.

16.00 EE 8487 Course 340°.

SE 1, Sea 1, cloudy, Vis. good

18.00 Course 190°.

20.00 EE 8479 F.K.W.-transmitter again in service.

ESE 1-2, Sea 1, heavily cloudy, rain showers, Vis. changing

20.40 EE 8713 Smoke cloud in sight bearing 200°T. Maneuvered ahead at 2 x GF.

23.18 Dived.

23.27 To Action Stations.

24.00 EE 7691

ESE 1-2, Sea 1, heavily cloudy, hazy horizon



Sun and Moon Data 15.08.42

Sun and Moon Data 16.08.42

- 30 -

17.08.42

00.05 Secured from Action Stations.

Vichy French "SAINT DOMINGUE", course 330°.

00.34 Surfaced, steamer had lights set.

00.50 Steamer out of sight bearing 335°T.

04.00 EE 7935

SE 2, Sea 1-2, heavily cloudy, rain showers, summer lightening, Vis. changing

08.00 EE 8748

EbyS 2, Sea 1-2, heavily cloudy, Vis. medium

10.00 Course 30°.

12.00 EE 8754 Day's run: Surfaced 179 nm, Submerged 1.5 nm.

E 2, Sea 1-2, cloudy, Vis. good

13.00 Course 0°.

16.00 EE 8487 Course 240°.

NE 2-3, Sea 2, cloudy, Vis. good

20.00 EE 7939

ENE 1-2, Sea 1, cloudy, rain showers, Vis. changing

20.20 Course 270°.

22.05 Radio Message from Beucke:

Steamer EO 2163, 290°, 12 knots, no zig zag.

Operating on this steamer.

22.21 Radio Message from Beucke:

18.00 hours 600-meter wave. U-boat sighting report in EO 3675.

22.25 Course 180°, HF.

22.27 Aircraft in sight bearing 260°T. Quickly coming closer.

22.28 EE 7938 Crash dive for Consolidated. Course 150°, range = 4000 meters.

22.40 Course 170°.

24.00 EE 7996 Surface.

E 1, Sea 1, heavily cloudy, Vis. good



18.08.42

01.00 Course 180°.

01.30 Course 340°.

02.50 EE 7998 Shadow bearing 270°T.

02.55 Course 80°. Shadow made out as own U-boat by conning tower silhouette.

03.04 Course 230°.

03.10 Shadow out of sight.

03.13 Course 30°.

04.00 EE 7996

ENE 2, Sea 2-3, overcast, rain showers, Vis. changing

08.00 EE 7939

ENE 3, Sea 2-3, overcast, rain showers, Vis. changing

10.52 Radio Message: 1) Boats in naval square ED 98 including . . . . Operation on traffic lane reported by U-108 and U-173 optional . . . .

11.30 Therefore came to course 130°.

Sun and Moon Data 17.08.42

Sun and Moon Data 18.08.42

- 31 -

continued

18.08.42

12.00 EE 7696 Day's run: Surfaced 188 nm, Submerged 1.2 nm.

NE 3, Sea 2-3, overcast, rain showers, Vis. changing

16.00 EE 8727 Course 150°

ENE 3, Sea 2-3, cloudy, Vis. good

20.00 EO 8791

NE 3, Sea 2-3, overcast, rain showers, Vis. medium

24.00 EO 2138

EbyS 3, Sea 2-3, overcast, rain showers, Vis. changing



19.08.42

04.00 EO 2271

EbyS 3, Sea 2-3, cloudy, Vis. medium

06.00 Course 70°.

08.00 EO 2285

EbyN 3, Sea 2-3, overcast, Vis. medium

12.00 EO 2293 Day's run: Surfaced 182 nm, Submerged 0 nm.

EbyN 3, Sea 2-3, overcast, Vis. medium

16.00 EO 2355

EbyN 2-3, Sea 2, cloudy, Vis. good

18.12 Crash dive for training.

18.30 Surfaced.

20.00 EO 2395

EbyS 2, Sea 1-2, cloudy, Vis. good

24.00 EO 3414

EbyS 1-2, Sea 1-2, lightly cloudy, Vis. good



20.08.42

04.00 EO 3458

EbyS 2-3, Sea 2, cloudy, Vis. good

08.00 EO 3499

E 2, Sea 1-2, cloudy, Vis. good

12.00 EO 3843 Day's run: Surfaced 172 nm, Submerged 0.8 nm.

E 1-2, Sea 1, cloudy, Vis. good

16.00 EO 3891

SE 2-3, Sea 1-2, cloudy, Vis. good

16.12 EO 3891 Crash dive for aircraft bearing 100°T. Large land-based aircraft, 2 engines, very high.

16.38 EO 3891 Surfaced.

16.49 EO 3891 Crash dive for aircraft bearing 30°T. Same aircraft. Low over the water.

17.41 Surfaced.

18.00 Crash dive for aircraft coming from 100°T. Same type, low over the water. 3 aircraft bombs at depth A -60 meters. Went to depth A +20 meters. No damage.

Sun and Moon Data 18.08.42

Sun and Moon Data 19.08.42

Sun and Moon Data 20.08.42

- 32 -

continued

20.08.42

20.00 EO 3895

SE 1-2, Sea 1, cloudy, Vis. medium, hazy

20.52 Surfaced.

20.58 EO 3896 Crash dive for aircraft, same type, apparently the same aircraft, very low. Bearing 210°T, 6 well placed aircraft bombs at depth A -70 meters. Went to depth A +20 meters. Afterwards to depth A +0 meters.

24.00 EO 3974



21.08.42

01.57 Surfaced.

04.00 EO 3976

SSE 1-2, light swell, cloudy, Vis. good

05.10 Radio Message: Except for Vichy French "ST. DOMINGUE" in EE 79 up to now nothing seen. Operating on Scholtz-traffic. 78 cbm. Request supply or remaining from Neitzel. EO 3970, duck pond. All naval squares.

                                                      - Markworth -

08.00 EO 3995

SSE 2, Sea 1-2, cloudy, Vis. good

11.06 Radio Message: . . . . 2) For Markworth 25 cbm supply anticipated.

12.00 EP 1783 Day's run: Surfaced 111 nm, Submerged 21 nm.

SE 3, Sea 3, heavily cloudy, Vis. good

16.00 EP 1872

SE 3, Sea 2-3, cloudy, Vis. good

18.00 Course 20°.

18.32 Course 160°.

20.00 EP 1885

SE 2-3, Sea 2-3, cloudy, Vis. good

24.00 EP 4261

SSE 2-3, Sea 2, cloudy, Vis. medium



22.08.42

04.00 EP 4317

SE 2-3, Sea 2, cloudy, Vis. medium

08.00 EP 4372

SE 2, Sea 1-2, cloudy, Vis. good

10.00 Course 0°.

12.00 EP 4354 Day's run: Surfaced 181 nm, Submerged 0 nm.

EbyN 2, Sea 1-2, swell, Vis. good

12.20 Course 340°.

16.00 EP 1979

E 1, Sea 1, long swell, cloudy, Vis. medium

Sun and Moon Data 20.08.42

Sun and Moon Data 21.08.42

Sun and Moon Data 22.08.42

- 33 -

continued

22.08.42

18.00 Course 190°.

18.02 Crash dive for training.

18.29 Surfaced.

20.00 EP 1971

SSE 2, long swell, cloudy, Vis. good

24.00 EP 4317

SSE 1, long swell, cloudy, Vis. good



23.08.42

02.00 Course 200°.

04.00 EP 4381

SE 2, Sea 1, long swell, cloudy, Vis. medium

08.00 EP 4613

SSE 1-2, long swell, cloudy, Vis. good

11.00 Course 0°.

12.00 EP 4615 Day's run: Surfaced 183 nm, Submerged 1 nm.

SE 1, long swell, cloudy, Vis. good

16.00 EP 4348

NE 2, Sea 1, long swell, cloudy, Vis. good

16.06 Radio Message: All boats in the American and Caribbean sea area are reminded of Commander's Handbook paragraph 354.

19.00 Course 200°.

20.00 EP 4318

NNE 1-2, long swell, cloudy, Vis. good

24.00 EP 4293

SE 2, Sea 1-2, cloudy, Vis. good



24.08.42

04.00 EP 4611

SSE 1-2, Sea 1, swell, overcast, Vis. medium

08.00 EP 4565

SE 1, swell, overcast, Vis. medium

12.00 EP 4555 Day's run: Surfaced 169 nm, Submerged 0 nm.

S 2, Sea 1-2, overcast, Vis. medium

16.00 EP 4579

ESE 1-2, Sea 1, swell, heavily cloudy, Vis. medium

19.45 Crash dive for training.

20.00 EP 4841

ESE 2, Sea 1-2, overcast, Vis. medium

20.57 EP 4841 Boat put on the bottom. Depth A +5 meters.

24.00 EP 4841



U-boat Commander's Handbook paragraph 354: "A submarine may leave its area of attack when special circumstances or particularly efficient concentration of the enemy, make it impossible for it to stay there. The evacuation of the area must then be reported as soon as possible".

Sun and Moon Data 22.08.42

Sun and Moon Data 23.08.42

Sun and Moon Data 24.08.42

- 34 -

25.08.42

00.02 Boat raised from the bottom.

00.15 Surfaced.

04.00 EP 4754

ESE 2, Sea 1-2, overcast, Vis. medium

07.16 Land in sight ahead to port.

08.00 EP 4777

ESE 1-2, Sea 1, overcast, Vis. changing

08.05 Course 90°.

10.00 Land in sight bearing 190°T.

11.03 Dived.

11.47 EP 4776 Put the boat on the bottom depth A -13 meters.

12.00 EP 4776 Day's run: Surfaced 153 nm, Submerged 2 nm.

SSE 2, Sea 1-2, overcast, Vis. good

20.00 EP 4776

23.00 Boat raised from the bottom.

23.40 Course 0°.

24.00 EP 4773



26.08.42

00.16 Surfaced.

04.00 EP 1716 Intention: Objective ED 90 via EE 96.

NNE 2, Sea 1-2, cloudy, Vis. good, summer lightening

03.59 - 07.35 Lunar eclipse.

08.00 EP 4446

NNE 2. Sea 1-2, heavily cloudy, Vis. good to medium

12.00 EP 4173 Day's run: Surfaced 90 nm, Submerged 0.5 nm.

NNE 1-2, Sea 1, cloudy, Vis. good

16.00 EP 4116

NE 2, Sea 1-2, cloudy, rain showers, Vis. changing

19.40 Radio Message: . . . . 2) Markworth . . . . begin return transit with 40 cbm.

20.00 EP 1748

ENE 1, Sea 1, swell, cloudy, Vis. good

24.00 EP 1712

NbyW 1-2, swell, overcast, Vis. medium



27.08.42

04.00 EP 1415

WbyN 2, Sea 1, overcast, rain shower, Vis. changing

08.00 EP 1171

WNW 1, swell, rain showers, Vis. changing

12.00 EO 3336 Day's run: Surfaced 174 nm, Submerged 0 nm.

WNW 2, Sea 1-2, overcast, Vis. medium changing

Sun and Moon Data 25.08.42

Sun and Moon Data 26.08.42

Sun and Moon Data 27.08.42

- 35 -

continued

27.08.42

16.00 EE 9968

EbyN 1-2, long swell, heavily cloudy

18.04 Crash dive for training.

18.42 Surfaced.

18.25 Crash dive for training.

18.29 Surfaced.

19.04 Course 330°.

20.00 EE 9922

NbyW 1, Sea 1, long swell, cloudy, Vis. good

24.00 EE 9646

NbyW 1, swell, cloudy, Vis. good



28.08.42

04.00 EE 9614

NbyE 1, swell, lightly cloudy, Vis. good

08.00 EE 9568

SE 2, Sea 1-2, cloudy, Vis. medium

12.00 EE 9813 Day's run: Surfaced 182 nm, Submerged 1 nm.

SE 1-2, Sea 1, cloudy, Vis. good

16.00 EE 9766

S 1, swell, cloudy, Vis. good

17.23 EE 9792 Smoke cloud in sight bearing 180°T.

17.24 Came to course 190°.

17.30 EE 9792 Crash dive for low flying aircraft range = 6000 meters, altitude = 100 meters.

17.42 Course 160°. Smoke cloud in periscope. Steamer comes closer. Initiated submerged attack. Steamer zig zags away again.

18.08 Surfaced. Smoke cloud bearing 150°T.

20.00 EE 9975 Maneuvered ahead at 2 x GF. Steamer zig zags around 90°.

SE 1-2, swell, cloudy, Vis. good

24.00 EE 9974

ESE 1, Sea 1, swell, rain showers, heavily cloudy



29.08.42

02.17 EO 3323 Dived for submerged attack (moonshine)

02.20 To Action Stations.

02.37 2 independent shots from tubes V and VI.

Target angle = 80°, target speed = 11 knots, range = 800 meters, depth = 2 meters.

2 hits, steamer is immediately in flames at the first hit.

02.52 Surfaced. Secured from Action Stations.

03.40 Alongside the lifeboats. From the statements of the crew "TOPA TOPA", 5356 GRT. Cargo: autos, aircraft and benzene from Trinidad for Freetown.

04.00 EO 3323

SE 2-3, Sea 1-2, overcast, thunderstorms, Vis. medium to bad

Steamer burns, at the stern a bright magnesium light that illuminated everything for 5 minutes.

04.02 EO 3323 Steamer sunk. Moved off on course 90°.

Sun and Moon Data 27.08.42

Sun and Moon Data 28.08.42

Sun and Moon Data 29.08.42

- 36 -

continued

29.08.42

05.00 Course 0°.

08.00 EE 9968 Course 320°.

SSE 1-2, Sea 1, overcast, rain showers, Vis. changing

12.00 EE 9928 Day's run: Surfaced 210 nm, Submerged 4.5 nm.

SE 1, Sea 1, long swell, cloudy, Sea 1, Vis. good

16.00 EE 9674

SE 1-2, long swell, cloudy, Vis. good

20.00 EE 9838

SSE 1-2, Sea 1, cloudy, Vis. good

24.00 EE 9885

SE 1-2, swell, cloudy, Vis. good

30.08.42

04.00 EO 3313

SSE 1-2. swell, cloudy, Vis. good

04.05 Course 10°.

06.18 Radio Message: On the Scholtz-route up to the coast nothing. In 38xx persistent air. On 29 August sank "TOPOA TOPA" in 3323 with air escort. Gasoline, aircraft, automobiles, Trinidad - Freetown. Position 3210, 6 + 4 torpedoes, 54 cbm. All naval square EO. Missing Serial No. 238 of 24 August. Antenna amplifier very good.

                                                  - Markworth -

07.20 EE 9873 Shadow bearing 70°T. Course about 265°.

08.00 EE 9848 Maneuvered ahead at GF. General course 270°.

NNE 1-2, Sea 1, cloudy, Vis. good

08.48 Dived.

08.53 To Action Stations.

09.26 2 independent shots from tubes III and IV.

Target angle = right 80°, target speed = 10 knots, range = 2000 meters, depth = 2.5 meters.

2 hits. Steamer remains lying with a list.

09.40 Secure from Action Stations.

09.43 Surfaced.

09.46 Steamer shoots. Crash dive!

09.51 EE 9847 Steamer sunk. Surfaced, lifeboat alongside. "SIR JUAN" (5200 GRT).

From statements of the crew from Australia via Cape Town - Trinidad - North America with wool and additional ores.

Statements concerning size varied greatly. Between 5200 and 6300 GRT and 8000 tons. Exact size not determined. Name was spelled by all crew members consistently.

10.19 Course 90°.

11.00 Course 60°.

12.00 EE 9843 Radio Message: Just now in naval square EE 9840 sank "SIR JUAN" Australian via Cape Town - Trinidad with wool and additional ores. Course 270°.

Sun and Moon Data 29.08.42

Sun and Moon Data 30.08.42

- 37 -

continued

30.08.42

12.00 EE 9843 Day's run: Surfaced 184 nm, Submerged 1.8 nm.

NE 2, Sea 1-2, cloudy, rain showers, Vis. changing

12.33 Radio Message: Markworth give name and GRT of the steamer sunk in 9840 again.

14.00 Course 0°.

15.25 EE 9822 Smoke cloud in sight. Maneuvered ahead at GF.

General course 265°.

16.00 EE 9821

NE 1-2, swell, cloudy, Vis. good

17.08 EE 9821 Smoke cloud in sight bearing 200°T.

17.19 Smoke cloud out of sight.

18.08 Dived.

18.15 To Action Stations.

19.31 2 independent shots from tubes I and III.

Target angle = right 90°, target speed = 9 knots, range = 800 meters, depth = 2 and 2.5 meters.

2 hits. Heavy white detonation. Cargo apparently phosphate.

19.36 Surfaced.

19.45 EE 9496 Steamer sunk. Came to course 180°.

19.54 Course 138°.

20.00 EE 9499

NE 1-2, Sea 1, cloudy, Vis. good

21.20 Radio Message: Just now sank freighter 4500 GRT, course 265°, EE 9586. Operating on another smoke cloud 9820 "SIR JUAN" from statements of the crew 5200 GRT.

                                                        - Markworth -

24.00 EE 9865

SE 1-2, Sea 1, swells, cloudy, Vis. good

31.08.42

02.00 Course 180°.

03.00 Course 0°.

04.00 EE 9833

SSE 1, swell, cloudy, rain showers, Vis. changing

08.00 EE 9526

S 1, swell, cloudy, summer lightening, Vis. medium

11.00 EE 9586 Shadow in sight bearing 200°T. Maneuvered ahead at GF. Steamer zig zags around 50°.

12.00 EE 9598 Day's run: Surfaced 207 nm, Submerged 2.0 nm.

ESE 1-2, swell 1, cloudy, rain showers, Vis. medium

12.52 EE 9598 Dived.

13.21 To Action Stations! It is a tanker of about 7000 GRT.

14.17 2 independent shots from tubes V and VI.

Target angle = 85°, target speed = 9 knots, range = 800 meters, depth = 2.5 and 3 meters.

1st hit engine room, tanker torch.

2nd hit bridge. Tanker was torn apart by several explosions and sinks very quickly.

Apparently has Benzene and heavy oil as cargo.

Sun and Moon Data 30.08.42

Sun and Moon Data 31.08.42

- 38 -

continued

31.08.42

14.20 EE 9596 Secure from Action Stations. Steamer sunk. 1 lifeboat seen.

14.21 Surfaced. The rising oil burns.

Moved off on course 45°.

Appearance:

Type like "CLAM" or "TRONTOLITE". Machine gun platforms next to bridge. Cannon astern. On the forecastle mechanism for mine defense.

15.00 F.K.W. transmitter out of service.

15.43 Crash dive for training, to wash off the oil layer from the boat.

15.58 Surfaced.

16.00 EE 9645

SE 2, S 1, cloudy, Vis. good

17.00 Course 90°.

18.00 Course 135°.

19.00 Course 180°.

20.00 EE 9658 F.K.W. transmitter again in service.

SE 2, Sea 1, cloudy, Vis. good

20.27 Radio Message: Just now 7000 GRT tanker sunk in EE 9590, course 45°. Still 2 + 2 torpedoes, 47 cbm. Trade wind weather, operation on yesterday's smoke cloud unsuccessful.

                                                        - Markworth -

24.00 EE 9925

ESE 2, Sea 1, cloudy, rain showers, Vis. changing



01.09.42

00.25 Course 290°.

02.00 Course 320°.

04.00 EE 9596

NE 2-3, Sea 2, cloudy, Vis. good

08.00 EE 9563

E 2, Sea 1-2, cloudy, Vis. good

12.00 EE 9377 Day's run: Surfaced 171 nm, Submerged 3 nm.

ENE 3, Sea 2-3, cloudy, rain showers, Vis. changing

13.00 Course 165°.

16.00 EE 9643

EbyN 3, Sea 2-3, cloudy, Vis. good

20.00 EE 9679

EbyS 4, Sea 3, cloudy, Vis. good

24.00 EE 9951

NE 4, Sea 3-4, cloudy, hazy



Sun and Moon Data 31.08.42

Sun and Moon Data 01.09.42

- 39 -

02.09.42

04.00 EE 9918

EbyN 4, Sea 3-4, cloudy, Vis. good

08.00 EE 9597

EbyN 3-4, Sea 3, cloudy, Vis. good

12.00 EE 9557 Course 160°.

EbyN 3-4, Sea 3, cloudy, Vis. good Day's run: Surfaced 163 nm, Submerged 0 nm.

16.00 EE 9822

ESE 3, Sea 2-3, cloudy, hazy horizon

20.00 EE 9867

EbyS 3, Sea 2-3, cloudy, hazy

24.00 EE 9897

EbyS 3, Sea 2-3, cloudy, Vis. good



03.09.42

02.00 Course 310°.

04.00 EO 3223

EbyS 3, Sea 2-3, cloudy, Vis. good Because only 40 cbm remains, in accordance with orders began return transit.

04.57 Radio Message: Have begun return transit.

                                                        - Markworth -

08.00 EE 9872

N 4, Sea 3, cloudy, Vis. medium

09.00 Crash dive for training.

10.16 Surfaced.

12.00 EE 9735 Day's run: Surfaced 159 nm, Submerged 0.5 nm.

EbyS 3, Sea 2-3, cloudy, Vis. good

16.00 EE 9571 Course 235°.

ENE 3, Sea 2-3, cloudy, Vis. good

20.00 EE 9497 Course 310°.

EbyS 2-3, Sea 2, overcast, rain showers, Vis. changing

24.00 EE 9448

NEbyE 2-3, Sea 2, cloudy, Vis good



04.09.42

04.00 EE 9421

NE 3, Sea 2-3, lightly cloudy, Vis. good

08.00 EE 9156

EbyS 3, Sea 2-3, cloudy, rain showers, Vis. changing

12.00 EE 9153 Day's run: Surfaced 174 nm, Submerged 0 nm.

ENE 3, Sea 2-3, cloudy, Vis. good

Sun and Moon Data 02.09.42

Sun and Moon Data 03.09.42

Sun and Moon Data 04.09.42

- 40 -

continued

04.09.42

16.00 EE 6791

ENE 3, Sea 2-3, overcast, Vis. medium

20.00 EE 6814

ENE 3, Sea 2-3, heavily cloudy, Vis. medium

24.00 EE 6572

ENE 3, Sea 2-3, heavy overcast, Vis. medium



05.09.42

04.00 EE 3899

NE 3, Sea 2-3, cloudy, Vis. good

08.00 EE 6286

NE 3-4, Sea 3, scattered clouds, Vis. good

12.00 EE 6238 Day's run: Surfaced 174 nm, Submerged 0 nm.

NE 3-4, Sea 3, cloudy, Vis. good

16.00 EE 3977

ENE 4, Sea 3-4, overcast, rain showers, Vis. changing

19.46 Crash dive for training.

20.00 EE 3946

ENE 4, Sea 3-4, overcast, Vis. medium

20.08 Surfaced.

24.00 EE 3919

EbyN 3-4, Sea 3, overcast, Vis. medium



06.09.42

04.00 EE 3682

EbyN 4, Sea 3-4, cloudy, Vis. medium

08.00 EE 3635

NE 3, Sea 3, cloudy, rain showers, Vis. changing

11.00 Radio Message: 1) Markworth . . . . Supply is anticipated in naval square DE 10.

11.15 Course 0°.

12.00 EE 3392 Day's run: Surfaced 168 nm, Submerged 0.5 nm.

ENE 3, Sea 2-3, cloudy. Vis. good

16.00 EE 3338

NEbyE 3, Sea 2-3, cloudy, Vis. good

20.00 EE 3332

NE 3, Sea 2-3, overcast, rain showers, Vis. changing

21.57 Crash dive for training.

22.18 Surfaced.

Sun and Moon Data 04.09.42

Sun and Moon Data 05.09.42

Sun and Moon Data 06.09.42

- 41 -

continued

06.09.42

24.00 DP 9968

NE 3-4, Sea 3, cloudy, Vis. medium



07.09.42

04.00 DP 9932

NE 3-4. Sea 3, cloudy, rain showers, Vis. changing

08.00 DP 9692

EbyN 3-4, Sea 3, cloudy, rain showers, Vis. changing

09.48 Crash dive for training.

In so doing, the cover glass of the forward periscope burst. Assumption: the glass was slightly broken by the aircraft bombs on 20 August. Due to the permanent and instantaneous stress the tension in the glass was released by breaking. Periscope was provisionally sealed with tallow, hemp and shellac. Tight up to depth A -35 meters.

10.19 Surfaced.

12.00 DP 9653 Day's run: Surfaced 145 nm, Submerged 1.5 nm.

ENE 3-4, Sea 3, cloudy, Vis. medium

12.34 Radio Message: Schnoor . . . . and Markworth small fuel transfer in naval square DF 2555. Both boats report arrival as soon as it is forseen. The later date applies. Markworth send bearing signals if necessary. Also completion report and tanker inventory.

13.00 Course 40°.

16.00 DP 9635

ENE 3-4, Sea 3, cloudy, Vis. good

20.00 DQ 7174

ENE 3, Sea 2-3, cloudy, Vis. good

24.00 DQ 7157

ENE 3-4, Sea 3, cloudy, Vis. good, hazy



08.09.42

04.00 DQ 7152

EbyN 3, Sea 2-3, cloudy, Vis. good

08.00 DQ 7131

ENE 3, Sea 2-3, lightly cloudy, Vis. good

12.00 DQ 4847 Day's run: Surfaced 134 nm, Submerged 0 nm.

E 2-3, Sea 2, cloudy, Vis. good

16.00 DQ 4827

ENE 2-3, Sea 2, cloudy, Vis. good

20.00 DQ 4597

NE 2-3, Sea 2-3, cloudy, Vis. good

Sun and Moon Data 06.09.42

Sun and Moon Data 07.09.42

Sun and Moon Data 08.09.42

- 42 -

continued

08.09.42

24.00 DQ 4569

NE 2-3, Sea 2, cloudy, Vis. medium

09.09.42

04.00 DQ 4642

E 3, Sea 2-3, cloudy, Vis. good

08.00 DQ 4388

E 3, Sea 2-3, cloudy, Vis. good

10.25 DQ 4391 A dimmed steamer in sight bearing 150°T. Target angle 30°. A modern motor ship. Because there is still approximately 20 minutes until dawn, ran at 2 x GF with E-supplement. Up to the end of twilight the bridge and superstructure are below the horizon. The maneuvered ahead at 2 x GF. Does not zig zag. General course 310°.

12.00 DQ 4352 Day's run: Surfaced 154 nm, Submerged 0 nm.

ENE 2-3, Sea 2, cloudy, Vis. medium

14.29 Dived for submerged attack. To Action Stations.

Steamer is Swedish "PEIPING", had painted out national colors and name. No flag. Because it is not on the list in accordance with Standing Kriegsmarine Order B.d.U. No. 105 and proceeding dimmed at night, will knock off. Due to low fuel inventory, confusing installation of sun sails on the central and quarterdeck and proceeding dimmed, I decide on an attack without warning.

At target angle = 90°, target speed = 12.5 knots, range = 800 meters, depth = 2.5 meters.

15.28 Double shot from tube I and IV. Hit after 69 seconds 2nd shot missed, because steamer was faster than set. Steamer stops. Slight list. 3 boats to the water, 2 set off, 1 remains lying alongside. Due to tarpaulins and awnings the upper deck cannot be seen. Therefore, did not surface. Also crew members still are aboard which do not show themselves.

16.00 DQ 1895

E 2-3, Sea 2, cloudy, Vis. good

16.01 Coup de grace from tube III with Ato.

Target angle = 90°, target speed = 0 knots, range = 400 meters, depth = 2 meters.

Ato had water in the engine chamber. After 183 seconds a dull detonation was heard in the entire boat. Because there was no running track, only bubbles in a location and running was heard up to detonation, the torpedo was probably a ground runner.

The steamer is still not sinking yet.

16.16 Shot from tube II.

Target angle = 90°, target speed = 0 knots, range = 400 meters, depth = 3 meters.

After 145 seconds hit center. Steamer settles further.

Sun and Moon Data 08.09.42

Sun and Moon Data 09.09.42

- 43 -

continued

09.09.42

16.19 Surfaced.

16.20 DQ 1895 Steamer sunk. 2 boats. Approached, Captain and Engineering Officer on board.

Captain admits to proceeding dimmed at night. He does not want to give the reason. On the way from South Africa to Buenos Aires, there new cargo, then for New York.

Cargo: Wool, hides, fats.

17.30 Course 180°.

17.38 Captain and Engineering Officer disembark.

18.00 Course 90°.

20.00 DQ 1981

E 2-3, Sea 2, cloudy, Vis. good

20.34 Radio Message: 1) 9 September, Swedish "PEIPING" sunk, because proceeding darkened at night. DQ 18. Wool, hides, fat from Buenos Aires for New York. One coup de grace failure - ground runner.

2) Out of torpedoes. Altogether:

9 steamers of 52985 GRT.

23 cbm, trade wind 2, arrival supply 14 September. Square DQ 19. All naval squares.

3) Air search periscope cover glass destroyed by aircraft bombs. Request spare at tanker.

                                                     - Markworth -

21.14 Radio Message: Markworth well done.

24.00 DQ 1955

E 2, Sea 1-2, lightly cloudy, Vis. good



10.09.42

04.00 DQ 1936

NE 2, Sea 1-2, cloudy, Vis. good

08.00 DQ 2473

NE 2, Sea 1-2, cloudy, Vis. medium to good

12.00 DQ 2541 Day's run: Surfaced 182 nm, Submerged 4.5 nm.

E 1-2, Sea 1, cloudy, Vis. good

12.27 - 13.37 Timed maneuver for Watch Officers, buoy over board.

16.00 DQ 2288

NE 2, Sea 1-2, swell, cloudy, Vis. great

20.00 DQ 2288

NE 2, Sea 1-2, cloudy, Vis. good

24.00 DQ 2316

NE 1, Sea 0, duck pond, cloudy, rain showers, Vis. changing



Sun and Moon Data 09.09.42

Sun and Moon Data 10.09.42

- 44 -

11.09.42

04.00 DE 9891

Duck pond, overcast, Vis. good

08.00 DE 9835

Duck pond, cloudy, Vis. good

10.56 Artillery Ready! Artillery exercises.

11.31 Artillery secured.

12.00 DE 9673 Day's run: Surfaced 177 nm, Submerged 0 nm.

Duck pond, cloudy, Vis. good

12.29 Crash dive for training.

12.48 Surfaced.

12.50 Artillery Ready!

12.53 Artillery secured.

16.00 DE 9652

SE 1-2, Sea 1, swell, heavily cloudy, Vis. good

20.00 DE 9398

SW 2, Sea 1-2, overcast, rain showers, Vis. changing

24.00 DF 7145

SW 2, Sea 1-2, overcast, Vis. medium



12.09.42

04.00 DF 7126

SW 4, Sea 3, overcast, rain showers, Vis. changing

08.00 DF 4769

S 3-4, Sea 3, overcast, rain showers, Vis. changing

12.00 DF 4843 Day's run: Surfaced 188 nm, Submerged 1 nm.

S 4-5, Sea 3-4, heavy overcast, rain showers, Vis. changing

16.00 DF 4823

SSW 4-5, Sea 4, overcast, rain showers, Vis. changing

16.31 - 17.13 Test dive.

20.00 DF 4591 For several days Matr.II Keller has suffered from stomach cramps and light fever up to [illegible number]. For several days Keller was force fed with light restraint by a Chief and the Engineering Officer because he refused nourishment. The stomach cramps are thus better. Now Keller begins a type of epileptic seizure, which however, disappears quickly. From the beginning all the disease symptoms seem mostly faked to me, because Keller will have to face justice after return for several offenses. Nevertheless, all necessary care and supervision is given.

SW 4-5, Sea 4, overcast, rain showers, Vis. changing

Sun and Moon Data 11.09.42

Sun and Moon Data 12.09.42

- 45 -

continued

12.09.42

Today he soils his bunk and the living space; afterwards I had his comrades wash him. In the conning tower Keller again has a seizure which appears very much feigned to me. After one or two minutes Keller was again in condition to give normal answers and come down, albeit with outside assistance.

Since I have no means of combating such illness on board, I decide to proceed to the supply space at high speed in order to get to a doctor as soon as possible.

20.20 Radio Message (Serial No. 269):

Urgently need medical assistance, will be positioned on 13 September at 16.00 hours at supply point. From 17.00 hours bearing signals. SSW 4, Sea 3, overcast, 1016 mb, 25°C, naval square DF 4559, More to follow.

                                                     - Markworth -

During the sending of the Radio Message Keller was again cared for by the First Watch Officer and Engineering Officer. In this connection, Keller made a statement to a comrade that he only feigned the seizure to get back at his comrades.

After the Engineering Officer reported to me, I gave him the order to interrogate Keller who now lies in his bunk. This interrogation confirms my suspicion completely.

Because Keller has feigned these disease symptoms, the only serious sign is the fever of 38.5°C, I can save the fuel from Schnoor and me. Therefore.

22.03 Radio Message: 1) Arrival supply point on 14 September at 10.00 hours. Bearing signals from 12.00 hours. Serial No. 269 settled.

2) Matr.II Keller admitted: two instances of mail theft.

3) Then deliberate weakening body by refusing food to stomach cramps. This eliminated by force-feeding.

4) Simulation of epileptic seizures, repeated self and room soiling.

5) Temp 37.5°C, pulse 95. Question restraint?

                                                     - Markworth -

23.17 Radio Message: To Markworth.

Continue monitoring pulse and temperature. Allow hunger strike without interference. If necessary, lock up under further observation. Full report on interrogation and illness shall be submitted separately.

24.00 DF 4672

S 4, Sea 3-4, overcast, rain showers, Vis. changing



13.09.42

03.52 Radio Message: Definitive meeting Markworth and Schnoor on 13 September in naval square DF 2765.

Sun and Moon Data 12.09.42

Sun and Moon Data 13.09.42

- 46 -

continued

13.09.42

04.00 DF 4652

S 4-5. Sea 4, heavily cloudy, Vis. medium

08.00 DF 4632 This morning Keller's pulse cannot be detected, only very weak breathing. Therefore I give Keller 3 Lobeline injections in succession and have artificial respiration performed to support.

SSW 3-4, Sea 3, heavily cloudy, rain showers, Vis. changing

To get to a doctor as quickly as possible from 11.22 hours ran at 2 x HF.

11.52 Radio Message: Today patient from 08.00 hours deeply unconscious, very weak pulse breathing no longer detected. Up to now 3 Lobeline injections. Running at high speed to meeting point. DF 5147, course 45°, 13 knots. Bearing signals from 15.00 hours.

                                                     - Markworth -

12.00 DF 5145 Day's run: Surfaced 192 nm, Submerged 0 nm.

SSW 3-4, Sea 3, overcast, rain showers, Vis. changing

12.30 Radio Message: Patient apparently dead. Beginning rigor mortis.

                                                     - Markworth -

Because Keller's body slowly cooled off from noon and is rigid, laid him out on the conning tower.

15.20 Begin bearing signals in accordance with Standing Kriegsmarine Orders.

16.00 DF 5125

S 4, Sea 3, overcast, Vis. medium

18.33 Course 315°.

19.00 Course 50°.

20.00 DF 2791 Changing courses at the meeting point.

S 3-4, Sea 3, overcast, rain showers, Vis. medium changing

20.32 U-boat in sight bearing 290°T.

20.33 Recognition signals exchanged.

21.15 Doctor on board. Examination confirms the death of Keller.

21.42 Doctor and Second Watch Officer go back to the tanker.

22.20 DF 2791 Mtr.II Horst Keller is committed to the sea.

23.25 Second Watch Officer returns aboard.

It is now too late for transfer. Therefore we want to continue at 6 knots and course 45° until 10.30 hours and then transfer, as the sea is expected to be calmer.

23.40 Tanker out of sight.

24.00 DF 2854

S 3-4, Sea 3, overcast, Vis. medium



14.09.42

04.00 DF 2828

SbyW 3, Sea 2-3, overcast, rain showers, Vis. medium

08.00 DF 2531

SW 3, Sea 2-3, cloudy, Vis. changing

Sun and Moon Data 13.09.42

Sun and Moon Data 14.09.42

- 47 -

continued

14.09.42

10.26 Tanker in sight bearing 220°T.

10.27 Recognition signal exchanged.

11.10 Begin fuel oil and lubricating oil transfer.

Ran before the sea at 1-2 knots.

30 cbm fuel oil, 1000 kg lubricating oil taken over.

12.00 DG 2593 Day's run: Surfaced 162 nm, Submerged 0 nm.

S 3-4, Sea 3, heavily cloudy, rain showers, Vis. good

15.19 Begin provisions transfer (for 10 days).

Provisions transfer from boat to boat with a rope & pulley went very well and quickly. A few things are spoiled by leaking containers.

16.00 DF 2647

NE 3, Sea 2-3, heavily cloudy, Vis. good

16.34 End of provisions transfer.

16.35 Departed from the tanker. Course 45°.

17.05 Tanker out of sight.

18.04 Test dive.

19.32 Surfaced.

20.00 DF 2616

NE 2-3, Sea 2-3, cloudy, Vis. good

24.00 DF 2385

N 2-3, Sea 2, cloudy, Vis. good



15.09.42

04.00 DF 2365

N 3, Sea 2, clear, Vis. good

08.00 DF 3112

NbyW 3, Sea 2-3, cloudy, Vis. good

10.07 CD 9882 Mastheads in sight bearing 300°T. Westerly course.

10.25 CD 9882 U-boat in sight bearing 90°T.

10.26

[Believe that this refers to the prohibited Route Anton]
Recognition signals exchanged. U-boat in hailing distance. Position and course of the steamer given to Rosenberg because he is going west anyway, I made the suggestion that he hold contact up to the limit of the steamer route and then attack him.

11.25 U-boat out of sight bearing 270°T.

12.00 CD 9885 Day's run: Surfaced 141 nm, Submerged 3 nm.

N 3-4, Sea 3, cloudy, Vis. good

12.12 Radio Message: 1) Schnoor reports tanker inventory total 653 cbm, provisions 185 days.

2) Naval square CD 9882 independent, because of westerly course passed to Rosenberg.

3) Matr.II Keller deceased 13 September.

4) Naval square CD 9868, 38 cbm, N 4, Sea 3, Cumulus 5, 1018 mb.

                                                     - Markworth -

Sun and Moon Data 14.09.42

Sun and Moon Data 15.09.42

- 48 -

continued

15.09.42

12.55 CD 9885 2 mastheads in sight bearing 270°T.

Steamer has southerly course. To obtain course and speed held contact at HF.

13.27 Radio Message: Another independent, southerly course, medium speed, naval square CD 9881.

                                                     - Markworth -

Steamer zig zags to westerly course, runs approximately 13 - 14 knots.

13.42 Radio Message: Enemy steers 270°.

                                                     - Markworth -

13.55 Mastheads out of sight. Because on the independent route, continued return transit.

14.00 Course 55°.

14.16 Radio Message: To Rosenberg and Markworth: In no case attack. All requests for attack permission on independents in Route "Anton", no matter what courses they may have are to remain unmade in the future. Route "Anton" is prohibited. Follow orders.

16.00 CD 9863

N 3-4, Sea 3, cloudy, Vis. good

20.00 CD 9927

NNW 4, Sea 3-4, lightly cloudy, Vis. good

22.21 Radio Message: . . . . 2) Markworth from 16 September at 08.00 switch to Ireland Circuit.

24.00 CD 9926

NNW 4, Sea 3-4, clear, Vis. good



16.09.42

04.00 CD 9696

NNW 4, Sea 3-4, cloudy, rain shower, Vis. changing

08.00 CE 7475 Switched to Ireland Circuit.

NbyW 4, Sea 3, cloudy, Vis. medium

12.00 CE 7462 Day's run: Surfaced 181 nm, Submerged 1 nm.

NW 4, Sea 3, cloudy, Vis. good

To check the tightness of the air search periscope:

13.13 Crash dive for training, went to depth A + 0 meters.

13.50 Surfaced.

16.00 CE 7514 Cover glass of the air search periscope is cracked.

NW 3-4, Sea 3, cloudy, Vis. good Repairs with on board means are not possible. Head detached, prisms removed, copper plate used in place of cover glass. Tight up to depth A -20 meters.

20.00 CE 7514

NW 3-4, Sea 3, cloudy Vis. good

24.00 CE 7265 Course 50°.

NW 3-4, Sea 3, cloudy, Vis. good



Sun and Moon Data 15.09.42

Sun and Moon Data 16.09.42

- 49 -

continued

17.09.42

04.00 CE 7318

WNW 3, Sea 2-3, cloudy, Vis. medium

08.00 CE 4991

WNW 2-3, Sea 2, clear, Vis. good

10.25 Crash dive for training. Went to depth A -20 meters.

10.47 Surfaced.

11.05 Crash dive for training.

12.00 CE 5745 Surfaced.

WbyS 2-3, Sea 2, swell, Vis. good Day's run: Surfaced 179 nm, Submerged 2.2 nm.

16.00 CE 5725

WSW 1-2, Sea 1, long swell, cloudy, Vis. good

20.00 CE 5495

SbyE 2, Sea 1, long swell, overcast, Vis. good

20.50 CE 5495 Flores in sight bearing 335°T.

21.07 Crash dive for training.

21.18 Surfaced.

24.00 CE 5555

SE 2, S 1-2, lightly cloudy, Vis. good



18.09.42

04.00 CE 5534

SSE 1-2, long swell, Sea 1-2, clear to cloudy, Vis. good

08.00 CE 5373

SbyE 1, Sea 1-2, swell, clear, Vis. good

12.00 CE 5355 Day's run: Surfaced 180 nm, Submerged 0.5 nm.

ESE 2, Sea 1-2, long swell, clear, Vis. good

16.00 CE 5333

S 2, Sea 1-2, long swell, overcast, Vis. good

16.50 Radio Message: Return harbor for . . . . Markworth Lorient.

20.00 CE 3749

S 2, light swell, overcast, Vis. good

23.48 Course 70°.

23.54 Course 65°.

24.00 CE 3766

E 1, swell, cloudy, Vis. good



19.09.42

04.00 CE 3827

ENE 2, light swell, clear, Vis. good

08.00 CE 3832

NE 1-2, Sea 1, swell, clear, Vis. good

12.00 CE 3682 Day's run: Surfaced 180 nm, Submerged 0 nm.

NNE 1, Sea 0, swell, cloudy, Vis. medium

Sun and Moon Data 17.09.42

Sun and Moon Data 18.09.42

Sun and Moon Data 19.09.42

- 50 -

continued

19.09.42

16.00 CE 3665

NE 1, swell 1, cloudy, Vis. good

20.00 CF 1527

E 1, long swell, cloudy, Vis. good

24.00 CF 1611

ENE 1-2, Sea 1, long swell, overcast, Vis. good



20.09.42

04.00 CF 1382

ENE 1-2, swell, cloudy, Vis. good

08.00 CF 2144

NE 1-2, swell, clear, Vis. good

12.00 CF 2136 Day's run: Surfaced 204 nm, Submerged 0 nm.

SSE 2-3, Sea 2, heavily cloudy, Vis. good

15.00 Crash dive for training.

15.30 Surfaced.

16.00 BE 8777

SSW 4, Sea 3, overcast, Vis. good

20.00 BE 8758

SW 4, Sea 3, overcast, Vis. medium

23.29 Radio Message: 1) . . . . Markworth . . . . between 04.00 and 08.00 hours report weather.

24.00 BE 8845

NW 4, Sea 3, overcast, Vis. good



21.09.42

04.00 BE 8825

NNW 4-5, Sea 4, heavily cloudy, Vis. changing

05.00 F.K.W.-transmitter out of service due to burnout of the last power resistor.

05.36 Radio Message on 24 meters:

43°N, 18°W, 1020 mb, rising, 1020 mb, rising, +19°C, W 4, W-swell medium-high, Stratocumulus 6/10 - 9/10, cloudy to heavy overcast, without precipitation, Vis. 10 nm.

                                                                - U-66 -

Was not heard.

08.00 BE 8833

WNW 5, Sea 4-5, overcast, Vis. good

09.57 Radio Message: 44°N, 18°W, 1024 mb, rising, +18°C, NW 5-6, Cumulonimbus, 6/10 - 9/10 to heavy overcast, Vis. 10 nm, NW-swell medium-high.

                                                                - U-66 -

12.00 BE 8682 Day's run: Surfaced 223 nm, Submerged 1 nm.

NNW 6, Sea 5, heavily cloudy, Vis. good

Sun and Moon Data 19.09.42

Sun and Moon Data 20.09.42

Sun and Moon Data 21.09.42

- 51 -

continued

21.09.42

12.47 Radio Message: At 09.57 hours on 24 meters from Norddeich receipt for Short Signal not heard, send again.

While moving the fuel oil taken over from Schnoor the loss of 8 cbm of fuel oil was discovered after consumption of approximately 20 cbm.

An oil trace is not noticed.

15.45 Therefore reduced speed, went to 240 RPM, diesel-electric.

16.00 BE 8665 Course 75°.

NNW 6, Sea 5, cloudy, rain showers, Vis. changing

20.00 BE 9451

NNW 6, S 6, cloudy, rain showers, Vis. changing

21.45 Crash dive for training.

24.00 BE 9492



22.09.42

01.33 Surfaced.

02.48 Radio Message: Short Signal 09.57 hours was Short Signal weather report with the code letter M to solve. 8 cbm lost without explanation. Position naval square 9435 still 9.5 cbm, NW 2, Sea 3, 1024 mb, rising, +18°C, Vis. good.

                                                   - Markworth -

04.00 BE 9439

NNW 3-4, heavily cloudy, rain showers Vis. changing

06.41 Radio Message: Markworth report by Short Signal if Lorient can be reached at economical cruising speed. If not, head for naval square BE 7961 [El Ferrol - tanker Max Albrecht], immediately switch Coastal Circuit.

08.00 BE 9516

NNW 3-4, Sea 3, cloudy, Vis. good

10.36 Crash dive for training.

[Possibly A means outer - it is not clear what tank this is] Fuel is driven from A port and 2 Internal port to the starboard regulating and reserve fuel oil tank. Remaining inventory in 2 Internal port was 7.5 cbm. Because I must assume consumption of 1.7 - 1.8 cbm for 100 nm in the Bay of Biscay, I can only reach the beginning of the entry route with the most favorable weather and without consideration of the current, therefore I decide to supply.

12.00 BE 9523 Day's run: Surfaced 145 nm, Submerged 6 nm.

16.00 BE 9523

20.00 BE 9297

21.11 Surfaced.

21.21 Radio Message: No.        - U-66 -

21.22 Crash dive for training. Proceeded submerged.

21.30 Course 105°.

24.00 BE 9299



Sun and Moon Data 21.09.42

Sun and Moon Data 22.09.42

- 52 -

23.09.42

04.00 BE 9536

06.12 Radio Message: Markworth must supply and is heading for BF 7961.

06.19 Radio Message: To Markworth.

If supply in naval square BF 7961 is necessary report arrival immediately. Arrival, supply and departure must take place in darkness. See Enclosure "Husum" Paragraph 3.

08.00 BE 9611

08.55 Surfaced.

09.31 Radio Message: Arrival supply evening 25 September.

                                               - Markworth -

11.55 Crash dive for training.

12.00 BE 9626 Day's run: Surfaced 38 nm, Submerged 21 nm.

SW 4-5, Sea 4-5, overcast, rain showers, Vis. medium

16.00 BE 9637

19.02 Surfaced.

20.00 BE 9637

NbyW 4, Sea 3-4, overcast, Vis. changing

21.30 Crash dive for training.

24.00 BF 7449



24.09.42

04.00 BF 7457

08.00 BF 7458

11.05 Surfaced.

12.00 BF 7493 Day's run: Surfaced 20 nm, Submerged 32 nm.

NW 4, Sea 3-4, high swell, cloudy, Vis. good

12.41 Crash dive for aircraft bearing 65°T, course 130°, range = 5 - 6000 meters. Went to depth A +0 meters.

14.44 Surfaced.

15.56 Crash dive for training.

16.00 BF 7821

WNW 4-5, Sea 4, cloudy, Vis. good

18.00 Course 100°.

20.00 BF 7823

20.16 Surfaced.

22.07 Crash dive for training.

22.09 Proceeded submerged at depth A -40 meters,

24.00 BF 7834



25.09.42

02.00 Course 90°.

04.00 BF 7835

07.45 Surfaced. Ran on the surface at 2 x HF to the entrance. Many fishing vessels were out maneuvered.

08.00 BF 7836 Course 150°.

NW 3-4, Sea 3, long swell, Vis. medium

Sun and Moon Data 23.09.42

Sun and Moon Data 24.09.42

Sun and Moon Data 25.09.42

- 53 -

continued

25.09.42

08.55 Course 90°.

09.15 BF 7915 Crash dive for aircraft bearing 320°T, range = 4 - 5000 meters. 2-engined land-based aircraft, course 120°. Went to depth A +0 meters.

09.18 Sound bearing 180°T. Nothing to see. Headed submerged for the entrance. Strong current.

12.00 BF 7927 Day's run: Surfaced 56 nm, Submerged 24 nm.

15.54 Put the boat on the bottom under land depth A -52 meters.

16.00 On the bottom

21.01 Surfaced. Because it is too bright, cruised off the entrance. Avoided an incoming fishing vessel.

Entered between sunset and moonrise in a rain squall with E-motors.

23.16 Made fast. [German tanker Max Albrecht]

Took over 10 cbm fuel oil.

Because the hernia of Masch. Gfr. Ehrlicmann has worsened and is causing a lot of pain, Ehrlichmann disembarked to "Ar z ".

24.00 Broken cloud deck, occasional moonshine



26.09.42

04.00 At destination point, rain showers, cloudy, moonshine

05.07 Cast off and put to sea.

08.00 BF 7931

NNW 6, Sea 5-6, cloudy, Vis. medium

08.03 Dived. Proceeded submerged.

12.00 BF 7695 Day's run: Surfaced 28 nm, Submerged 17 nm.

16.00 BF 7695

16.10 Course 40°.

19.10 Surfaced.

20.00 BF 7666

NNW 4-5, Sea 4, cloudy, Vis. medium

20.28 Crash dive for training.

24.00 BF 8441



27.09.42

04.00 BF 8418

08.00 BF 8416

12.00 BF 8217 Day's run: Surfaced 8 nm, Submerged 26 nm.

14.05 Surfaced.

16.00 BF 8215

W 3-4, Sea 3, overcast, rain showers, Vis. medium changing

Sun and Moon Data 25.09.42

Sun and Moon Data 26.09.42

Sun and Moon Data 27.09.42

- 54 -

continued

27.09.42

16.00 BF 8215

17.00 Crash dive for training.

20.00 BF 8213

24.00 BF 8217



28.09.42

04.00 BF 8216 Course 50°.

08.00 BF 8221

11.10 Surfaced.

11.18 Radio Message: 1) Position 29 September 14.00 hours at L 2. Request Transmitter I from 08.00 hours. 2) Missing Serial Nos. 65, 66, 74.

                                                    - Markworth -

12.00 BF 5794 Day's run: Surfaced 42 nm, Submerged 62 nm.

W 2-3, Sea 2, heavy overcast, Vis. medium

12.42 Crash dive for training.

15.03 Surfaced.

16.00 BF 5769

17.00 Radio Message: Escort for . . . . Markworth positioned at 29 September 14.00 hours Point L 2.

17.45 BF 5818 Crash dive for Condor or Boeing.

19.38 Surfaced.

20.00 BE 5818

WbyN 2-3, Sea 2, heavily cloudy, Vis. medium

20.10 BF 5818 Sailing vessel in sight bearing 170°T.

20.12 BF 5818 2nd sailing vessel in sight bearing 330°T.

20.15 BF 5818 U-boat in sight bearing 20°T.

20.19 BF 5818 1st sailing vessel out of sight bearing 180°T.

20.25 BF 5819 2nd U-boat in sight, dived after a few minutes.

20.43 Crash dive for training. Went to depth A -39 meters.

24.00 BF 5576



29.09.42

04.00 BF 5581 Proceeded submerged up to the 200-meter line.

08.00 BF 5557

08.06 Surfaced.

08.58 Course 0°. With large zigzags headed for the entrance. Transmitter I heard clearly and gave sharp bearing. Ran at GF and sometimes AK. Passed many sailing vessels and a formation of small vessels.

08.32 Radio Message: Steinhoff and Markworth. 2 Arados conduct distress search from 09.00 hours on Route "Kernleder".

09.38

12.00 BF 6418 Day's run: Surfaced 65 nm, Submerged 28 nm.

WNW 3, Sea 2-3, heavily cloudy, Vis. good

12.02 Coast in sight.

13.42 Taken in convoy.

15.30 Made fast.



Sun and Moon Data 27.09.42

Sun and Moon Data 28.09.42

Sun and Moon Data 29.09.42



	Comments of the Befehlshabers der Unterseeboote
	on the Kriegstagebuch of " U-66 " from 27.5 - 29.9.42.

	First war patrol of the Kommandant with a veteran boat. The very good performance, in which the mine task is especially highlighted, brought a gratifying success.


		For the Befehlshaber der Unterseeboote
		the Chief of the Operations Department

Click the icons to view the associated records

Return to the U-boat KTB page

- 1 -




	07.05.42	Lorient A III
	07.55		After return from the 5th patrol made fast A III.
			Fuel oil transfer and discharge, provisions discharge, boat cleared.

	08.05.42	Lorient, A III Keroman III
	07.00 - 08.15		Boat shifted to Keroman, Hall III.


	09.05.42 to
	15.06.42	Lorient, Keroman III	Shipyard time.

	16.06.42	Lorient, Lorient, Keroman S III	Boat shifted to S III.

	17.06.42	Lorient, S III	Munitions, water and fuel oil loading.

	18.06.42	Lorient, S III - B VI - S II	Shifted to B VI to shoot dummy torpedoes and for pier side testing. Shifted to S II, there took over drinking water and voltage equalization of all battery cells.

	19.06.42	Lorient, S II- A II - S II	Fuel and torpedo loading, shifted to A II, sea trial, diving test, degaussing, made fast S III, afterwards fuel oil loading.

	20.06.42	Lorient, S II	Voltage equalization of all battery cells, fuel oil loading, final adjustments and overhaul.

	21.06.42	Lorient, S II - A II	Shifted to A II, fuel oil loading, boat taken over.

	22.06.42	Lorient, A II - S III	Provisions loading, shifted to S III, mine loading.

	23.06.42	Lorient, S III A II
	08.00		Final trim test, afterwards made fast A II.
	09.00		Fresh provisions loading.
	10.00		Ready for sea.
	10.35		Put to sea.
	10.45		Taken in convoy.
	12.18	L II	Released from convoy, course 235°.
	14.00	W 3, Sea 2-3, light overcast, Vis. clear

	24.06.42
	00.30		Heavy anti-aircraft fire over Lorient.

- 2 -



	continued
	24.06.42
	00.30		Because chart outfitting is incomplete and depth sounder is out of service, return transit.
			Radio Message: Position 06.00 hours Point L II "U-66"
			Course 230°.
	03.42		Course 53°.
	03.43		Radio Message: Immediately report if and why beginning return transit.
	04.00	W 3, Sea 2-3, light overcast, Vis. good
	05.25		Radio Message: Depth finder out of service, chart outfitting incomplete. Return transit. "U-66".
	05.35		Radio Message: Escort positioned 06.00 hours L II.
	06.30		Taken in convoy.
	07.10		Anchored on the Roads.
	08.00	W 2, Sea 2-3, light overcast, Vis. good
	08.05		Anchor up.
	09.08		Released from convoy.
	09.58 to	Lorient A II	Made fast A II.
			Day's run: 160 nm.
	20.37		Fuel oil loading.
	20.40		Put to sea from Lorient with "U-528".
	20.55		Taken in convoy.
	22.22		Released from convoy, course 233°.
	22.37		Course 235°.
	24.00	N 3, Sea 2, clear, Vis. good

	25.06.42
	01.15		Course 225°, "U-528" out of sight.
			At the exit of the route fishing vessels lie on both sides.
	04.00	NbyE 3-4, Sea 3, lightly cloudy, Vis. good
	04.36		Dived to proceed submerged at depth A -30 meters.
	08.00	BF 5558
	12.00	BF 5576	Day's run: Surfaced 85 nm
			Submerged 18.5 nm.
	16.00	BF 5576
	17.10		Deep diving test to depth A +30 meters.
	20.00	BF 5811	Surfaced.
		N 3, Sea 2-3, overcast, Vis. good
	22.00		Crash dive for training.
	24.00	BF 5736

	26.06.42
	04.00	BF 5729
	07.26	Surfaced.	Surfaced.
	08.00	BF 5719
		NNW 3, Sea 3, overcast, Vis. good
	10.00		Crash dive for training, proceeded submerged at depth A -35 meters, course 260°.
	12.00	BF 4963	Day's run: Surfaced 55 nm, Submerged 49 nm.

	Sun and Moon Data 24.06.42
	Sun and Moon Data 25.06.42
	Sun and Moon Data 26.06.42

- 3 -



	continued
	26.06.42
	16.00		Radio Message: . . . . 3) Markworth: Task no longer required, head for square ED 60. Destroy Operations Order 53.
			Intention:
			Transit within extended blockade area via the Azores to ED 60.
			Operations Order No. 53 destroyed.
	20.00	BF 4945
	20.56		Surfaced.
	23.05		Crash dive for training. Proceeded submerged.
	24.00	BF 4869

	27.06.42
	04.00	BF 4859
	08.00	BF 4873
	10.10		Surfaced.
	11.x9		Crash dive for training. Proceeded submerged.
	12.00	BF 4874	Day's run: 48 nm, 50 nm.
	14.32	BF 4795	Several strong detonations in quick succession. Apparently distant aircraft bombs. Heard in the entire boat. At periscope depth, also at depth 11 meters, nothing seen.
	16.00	BF 4793
	20.00	BF 4795
	21.05		Surfaced.
	22.00	BF 4795
		NE 3, Sea 2-3, cloudy, Vis. medium
	22.40	BF 4788	Crash dive for aircraft, apparently Handly-Page-Hamton, bearing 220°T, parallel course.
			Proceeded submerged.
	24.00	BF 4786

	28.06.42
	04.00	BF 4777
	0x.02		Course 245°.
	04.10	NE 3, Sea 2-3, heavy overcast, Vis. medium	Surfaced.
	08.00	BE 9325
		NE 3, heavy overcast, Sea 3, Vis. medium
	08.35		Crash dive for training.
	12.00	BE 9346	Surfaced.
		NE 3-4, Sea 3, overcast, hazy	Day's run: Surfaced 78 nm, Submerged 48 nm.
	13.15		Crash dive for training.
	13.26		Surfaced.
	16.00	BE 9283
		NE 4, partial overcast, Sea 3-4, hazy
	18.27		Crash dive for training.
	18.34		Surfaced.
	19.30		Crash dive for training.
	19.55		Surfaced.
	20.00	BE 9433
		NNE 4, cloudy, Sea 3-4, Vis. medium

	Sun and Moon Data 26.06.42
	Sun and Moon Data 27.06.42
	Sun and Moon Data 28.06.42

- 4 -



	continued
	28.06.42
	22.08		Radio Message passing report: Serial Nos. 2 and 3 missing. BE 9435, high pressure weather, heavy haze.
			- Markworth -
	22.32		Radio Message: . . . . For Markworth missing Serial Nos. are settled.
	24.00	BE 9452
		ENE 3, Sea 2-3, partial overcast, Vis. clear

	29.06.42
	04.00	BE 9448
		ENE 3, Sea 2-3, overcast, Vis. medium
	07.00		Crash dive for training.
	07.21		Surfaced.
	08.00	BE 8694
		ENE 3, Sea 3, overcast, Vis. medium
	10.00		Switched to Ireland Circuit.
	11.20		Crash dive for training with simulated malfunctions.
	11.39		Surfaced.
	12.00	BE 8745	Day's run: Surfaced 178 nm, Submerged 2 nm.
		NE 3, overcast, Sea 2, Vis. medium
	15.35		Crash dive for training.
	15.55		Surfaced.
	16.00	BE 8839
		NE 3, Sea 2, overcast, Vis. medium
	20.00	BE 8843
		NE 3, Sea 2, broken cloud deck, Vis. medium
	24.00	BE 8792
		NE 3, Sea 2, heavily cloudy, Vis. medium

	30.06.42
	04.00	BE 8779
		NbyE 3, long swell, overcast, Vis. medium
	07.53		Crash dive for training.
	08.00	CF 2221
		NbyE 3, Sea 2, overcast, Vis. medium
	08.15		Surfaced.
	09.00 - 10.30		Artillery exercises.
	12.00	CF 2155	Day's run: Surfaced 172 nm, Submerged 1.0 nm.
		NbyE 3, Sea 2, broken cloud deck, Vis. medium
	14.08		Crash dive for training.
	14.37 - 15.48		Fire control training.
	15.57		Surfaced.
	16.00	CF 2154
		N 2-3, Sea 2, slightly cloudy, Vis. 10 nm
	20.00	CF 1365
		NNW 2, cloudy, Sea 2, Vis. 10 nm
	24.00	CF 1612
		NbyW 1-2, Sea 2, cloudy, hazy

	Sun and Moon Data 28.06.42
	Sun and Moon Data 29.06.42
	Sun and Moon Data 30.06.42

- 5 -




	01.07.42
	04.00	CF 1552
		NNW 1-2, Sea 1-2, overcast, Vis. medium
	08.00	CF 1544
		WSW 2, Sea 2, lightly cloudy, Vis. 10 nm
	12.00	CE 3659	Day's run: Surfaced 153 nm, Submerged 5 nm.
		SbyW 2, Sea 2, heavily cloudy, Vis. medium
	16.00	CE 3975
		SSW 3, Sea 2-3, lightly cloudy, Vis. good
	17.45 - 18.05		Test dive.
	20.00	CE 3831
		SSW 3, Sea 2-3, lightly cloudy, Vis. good
	24.00	CE 3842
		SSW 3, Sea 2-3, overcast, rain showers, Vis. low

	02.07.42
	04.00	CE 3765
		WSW 3, Sea 2-3, clearing, Vis. medium
	07.59		Crash dive for training, transit submerged.
	08.00	CE 3782
		SW 3, Sea 2-3, cloudy. light haze
	08.46 -		Combat roles, fire control training.
	11.40		Surfaced
	12.00	CE 3784	Day's run: Surfaced 140.5 nm, Submerged 11.x nm.
		WSW 3-4, Sea 3, lightly cloudy, Vis. great
	13.26		Crash dive for training.
	13.30		Surfaced.
	16.00	CE 5333
		WSW 3-4, Sea 3, medium swell, lightly cloudy, Vis. great
	20.00	CE 5352
		WSW 4, Sea 3-4, medium swell, heavily cloudy, Vis. medium
	24.00	CE 5345
		W 4, Sea 3-4, heavily cloudy, Vis. changing

	03.07.42
	01.50		At Action Stations for training.
	01.55		Secured from Action Stations.
	04.00	CE 5291	Course 230°.
		W 3-4, Sea 3, medium swell, partial overcast, Vis. changing
	08.00	CE 5288
		W 3, Sea 2-3, lightly cloudy, Vis. great
	12.00	CE 5541	Course 235°.
		W 3, Sea 2-3, lightly cloudy, Vis. great	Day's run: Surfaced 160 nm, Submerged 7 nm.
	13.00	CE 5463	Passed "Flores" at a distance of 32 nm.
	16.00	CE 5467
		WbyN 3-4, Sea 3, lightly cloudy, Vis. good

	Sun and Moon Data 01.07.42
	Sun and Moon Data 02.07.42
	Sun and Moon Data 03.07.42

- 6 -



	continued
	03.07.42
	17.42		Crash dive for training, combat role exercises.
	18.55		Surfaced.
	20.00	CE 5476
		WbyN 3, Sea 3, cloudy, Vis. good
	21.15		Radio Message: . . . . , Markworth . . . . report weather.
	24.00	CE 5714
		WbyN 2, Sea 1-2, long swell, cloudy, Vis. good

	04.07.42
	02.29		Radio Message Short Weather Signal: 38°N, 32°W, rising 1028 mb, +19°C, NW 1-2, 1/10 to 5/10, Cumulus/Cirrus, Vis. over 10 nm, Sea NW low.
			- Markworth -
	04.00	CE 4964
		WbyN 2, Sea 1-2, cloudy, Vis. good
	08.00	CE 4972
		W 2, Sea 1-2, overcast, Vis. medium
	12.00	CE 7231	Day's run: Surfaced 163.5 nm, Submerged 8 nm.
		SW 2-3, Sea 2, overcast, rain showers, Vis. changing
	16.00	CE 7243
		WNW 2, Sea 1-2, lightly cloudy, Vis. great
	18.35 - 19.33		Fired at drifting buoy with machine gun C/30 and machine gun C/34, changing courses.
	20.00	CE 7168	Explosive ammunition for the machine gun C/30 completely useless, of 20 shots 8 failures. Armor piercing munitions work properly.
		WNW 2-3, Sea 1-2, heavily cloudy, Vis. great
	20.24		Radio Message: . . . . Markworth 5 July 08.00 hours switch to Greenland Circuit.
	24.00	CE 7185
		NNW 2, Sea 1-2, cloudy, Vis. good

	05.07.42
	04.00	CE 7417
		NNW 2, Sea 1, heavily cloudy, Vis. medium to low
	08.00	CD 9656
		NW 2, Sea 1-2, overcast, rain showers, Vis. greatly changing	Switched to Greenland Circuit.
	08.15		Crash dive for training. Combat role exercises.
	10.28		Surfaced.
	10.30 - 11.35		Shooting exercises.
	12.00	CD 9681	Day's run: Surfaced 168 nm, Submerged 4 nm.
		NW 2, Sea 2, overcast, Vis. good
	16.00	CD 9835
		NNW 1-2, Sea 1, clear, Vis. great
	20.00	CD 9849
		NW 1-2, light swell, lightly cloudy, Vis. good

	Sun and Moon Data 03.07.42
	Sun and Moon Data 04.07.42
	Sun and Moon Data 05.07.42

- 7 -



	continued
	05.07.42
	24.00	CD 9798	Course 225°.
		NW 1-2, Sea 1, cloudy, Vis. great

	06.07.42
			Intention: Head for ordered square via EE 60 because heavy traffic is reported there.
	04.00	DF 2325
		W 1-2, swell 1, light overcast, hazy
	08.00	DF 2348
		W 1-2, swell 1, light overcast, Vis. good
	12.00	DF 2534	Day's run: Surfaced 190 nm, Submerged 0 nm.
		NW 1, Sea 0, Vis. great, heavily vloudy
	16.00	DF 2554
		W 1, light swell, cloudy, Vis. great
	17.00		Crash dive for training.
	17.43		Surfaced.
	20.00	DF 2493
		WNW 1, light swell, cloudy, Vis. great
	24.00	DF 2755
		WNW 1-2, swell 1, somewhat cloudy, Vis. good

	07.07.42
	04.00	DF 2777
		NNW 1, swell, lightly cloudy, Vis. good
	08.00	DF 4361
		NNW 1, swell, heavily cloudy, Vis. good
	12.00	DF 4378	Day's run: Surfaced 186 nm, Submerged 1.5 nm.
		WSW 1-2, light swell, Vis. great, lightly cloudy
	13.16		Test dive.
	15.36		Surfaced.
	16.00	DF 4562
		WSW 1, swell, clear to lightly cloudy, Vis. great
	19.21		Crash dive for training.
	19.37		Surfaced.
	20.00	DF 4582
		WSW 1, light swell, lightly cloudy, Vis. good
	24.00	DF 4578
		NNE 1, swell, cloudy, Vis. good

	08.07.42
	04.00	DF 4762
		NE 1, swell, cloudy, Vis. medium
	08.00	DF 4776
		N 1, swell, cloudy, Vis. good
	12.00	DE 9335	Course 205°.
		S 1, swell, cloudy, Vis. good	Day's run: Surfaced 170 nm, Submerged 3 nm.

	Sun and Moon Data 21.07.42
	Sun and Moon Data 22.07.42
	Sun and Moon Data 23.07.42

- 8 -



	continued
	08.07.42
	16.00	DE 9391
		NE 1, swell, cloudy, Vis. good
	16.51		At Action Stations for training.
	16.59		Crash dive for training. Went to depth A +0 meters.
	17.00 - 18.20		Combat training.
	18.30		Surfaced.
	20.00	DE 9628
		SSE 1-2, swell, cloudy, Vis. good
	23.15 - 23.45		Artillery exercises.
	24.00	DE 9672
		ENE 2, Sea 1, cloudy, Vis. good

	09.07.42
	04.00	DE 9839
		EbyS 2, Sea 1-2, cloudy, Vis. good
	08.00	DE 9869
		ESE 3, Sea 2, lightly cloudy, Vis. good
	12.00	DQ 2236	Day's run: Surfaced 183 nm, Submerged 5 nm.
		ENE 2-3, Sea 2, lightly cloudy, Vis. good
	14.10	DQ 2363	Smoke cloud bearing 252°T.
			Maneuvered ahead at GF. Steamer does not zig zag, steers 302 - 307°, general course 306°.
	16.00	DQ 2329	At 19.30 hours am positioned directly ahead of him. Enemy speed by plotting 8.2 knots, by matching 8.5 knots.
		ENE 3, Sea 2-3, lightly cloudy, Vis. good
	19.41		Dived, to look at him closely. Steamer is suspicious in spite of straight course because he is on course for New York.
	20.00	DE 9785	To Action Stations.
		ENE 2-3, Sea 2, lightly cloudy, Vis. good	Submerged attack.
		ENE 2-3, Sea 2, lightly cloudy, Vis. good	Steamer has no neutrality markings, flies no flag, gray with brown bridge, on the stern a 7.5 cm cannon.
	20.42		Double shot from tubes I and II because range is over 1000 meters. Steamer is estimated at 5000-6000 GRT.
			Target angle = 85°, target speed = 9 knots, range = 1200 meters, depth = 3 meters.
			1st hit forward mast - bridge; 2nd hit after mast. Afterwards a boiler explosion.
	20.52	DE 9773	Steamer sunk.
			According to statement of the Captain:
			"TRIGLAV", 6363 GRT from Lobito for New York with manganese ore among other things. Captain believed U-boat risk first north of 30°N, therefore straight course.
	21.45		Course 270°, both diesels HF.
	22.15		Course 200°, diesel-electric.
	23.05		Lifeboats out of sight bearing 70°T.

- 9 -



	continued
	09.07.42
	24.00	DQ 2212	[typos - on this page all DO have been changed to DQ]
		EbyS 2, Sea 1-2, light overcast, Vis. good

	10.07.42
	04.00	DQ 2245
		SE 3-4, Sea 2-3, light overcast, Vis. medium
	08.00	DQ 2433
		SE 3-4, Sea 3, heavy overcast, Vis. medium
	12.00	DQ 2456	Day's run: Surfaced 203.5 nm, Submerged 6.5 nm.
		ESE 3, Sea 2-3, light overcast, Vis. good
	13.47		Test dive.
	14.15		Surfaced.
	16.00	DQ 2722
		E 3-4, Sea 2-3, light overcast, Vis. good
	20.00	DQ 2757
		EbyN 3-4, Sea 3, heavily cloudy, rain showers, Vis. medium
	24.00	DQ 5114
		E 3, Sea 2, cloudy, Vis. medium

	11.07.42
	04.00	DQ 4392
		E 3-4, Sea 3, clear, Vis. good
	08.00	DQ 4625
		E 3-4, Sea 3, overcast, Vis. medium
	12.00	DQ 4672	Day's run: Surfaced 189 nm, Submerged 1 nm.
		EbyW 3, Sea 2-3, light overcast, Vis. good
	16.00	DQ 4914
		EbyS 3, Sea 2-3, lightly cloudy, Vis. good
	20.00	DQ 4892
		EbyS 3, Sea 2-3, lightly cloudy, Vis. good
	20.41		Crash dive for training.
	21.04		Surfaced.
	24.00	DQ 7229
		EbyS 3, Sea 2, cloudy, Vis. good

	12.07.42
	02.14		Radio Message: On 9 July DE 9773 "TRIGLAV" Lobito - New York, manganese. Question completion of task in accordance with outbound orders. DQ 7253, 178 cbm, trade wind weather. All naval squares.
			- Markworth -
	04.00	DQ 7273
		ESE 3, Sea 2-3, lightly cloudy, Vis. good
	08.00	DQ 7544
		ESE 3, Sea 2-3, lightly cloudy, Vis. good
	09.36		Radio Message: Markworth task completion in naval square ED 69 in accordance with outbound orders.
	12.00	DQ 7468	Day's run: Surfaced 189 nm, Submerged 1 nm.
		ESE 3-4, Sea 3, cloudy, Vis. good
	16.00	DQ 7753
		ESE 3, Sea 3, cloudy, Vis. good

	Sun and Moon Data 09.07.42
	Sun and Moon Data 10.07.42
	Sun and Moon Data 11.07.42
	Sun and Moon Data 12.07.42

- 10 -



	continued
	12.07.42
	20.00	DQ 7787
		E 3-4, Sea 3, cloudy, Vis. good
	24.00	EE 1142 [typo EF]
		EbyN 4, Sea 3-4, lightly cloudy, Vis. good

	13.07.42
	04.00	EE 1177 [typo EF]
		EbyS 4-5, Sea 4, cloudy, Vis. medium
	08.00	EE 3665
		EbyS 4-5, Sea 4, clear, Vis. medium
	12.00	EE 3681	Day's run: Surfaced 192 nm, Submerged 0 nm.
		EbyS 4-5, Sea 4, clear, Vis. changing, hazy
	16.00	EE 3918
		EbyS 4-5, Sea 4, clear, Vis. good
	19.45		Course 190°.
	20.00	EE 3896
		E 3-4, Sea 3, clear, Vis. good
	20.28		Crash dive for training. Went to depth A +0 meters, afterwards combat exercises.
	21.32		Surfaced.
	24.00	EE 6235
		E 3, Sea 2, cloudy, Vis. good

	14.07.42
	00.10		Course 210°.
	04.00	EE 6258
		E 3, Sea 2, clear, Vis. good
	08.00	EE 6512
		EbyS 3, Sea 3, cloudy, Vis. changing
	12.00	EE 6465	Day's run: Surfaced 167 nm, Submerged 2 nm.
		EbyS 2-3, Sea 2-3, cloudy, Vis. medium
	16.00	EE 6488
		ESE 2-3, Sea 2, clear, Vis. good, somewhat hazy
	17.11		Test dive.
	17.28		At Action Stations for training.
	18.07		Surfaced.
	20.00	EE 6743
		ESE 2-3, Sea 2, clear, Vis. good, hazy horizon
	24.00	EE 6774
		E 2, high swell, Sea 1-2, cloudy, Vis. changing

	15.07.42
	04.00	EE 5986	Course 318°.
		NbyE 3, Sea 2-3, cloudy, Vis. medium
	08.00	EE 5943
		NE 2-3, Sea 2, cloudy, Vis. good

	Sun and Moon Data 12.07.42
	Sun and Moon Data 13.07.42
	Sun and Moon Data 14.07.42
	Sun and Moon Data 15.07.42

- 11 -



	continued
	15.07.42
	12.00	EE 5832	Day's run: Surfaced 180.5 nm, Submerged 2.0 nm.
		NE 2, Sea 1-2, cloudy, Vis. good
	16.00	EE 5557
		NNE 2, Sea 2, lightly cloudy, Vis. good
	20.00	EE 5514
		NE 1-2, Sea 1, cloudy, Vis. medium
	24.00	EE 5183
		N 2, Sea 1-2, rain showers, Vis. changing

	16.07.42
	04.00	EE 5115
		NbyE 2, Sea 1-2, cloudy, Vis. medium
	05.00		Course 210°.
	08.00	EE 4362
		NbyE 2, Sea 1-2, clear, Vis. good
	12.00	EE 4384	Day's run: Surfaced 194 nm, Submerged 0 nm.
		EbyS 2, Sea 1-2, cloudy, Vis. good
	16.00	EE 4617
		E 1-2, Sea 1, partial overcast, Vis. good
	20.00	EE 4595
		EbyS 1-2, swell 1, cloudy, Vis. good
	22.55		Crash dive for training.
	23.50		Surfaced.
	24.00	EE 4825
		EbyN 1-2, Sea 1, lightly cloudy, Vis. good

	17.07.42
	04.00	EE 4847
		EbyN 1-2, Sea 1, clear to cloudy, Vis. good
	08.00	EE 4769
		E 2, Sea 1-2, clear, Vis. good, summer lightening
	10.15		Dived to proceed submerged.
	12.00	EE 7134	Intentions:
		E 1-2, Sea 1, clear, Vis. good, summer lightening	I want to have a look at Bridgetown/Barbados. Heading there on course 90°, lighthouse burns as in peacetime. From Santa Lucia strong searchlights shine.
			At dawn I am positioned 6 nm west of Bridgetown and run submerged to within 2 nm. Heavy air patrol, fast land-based aircraft. We dive to depth A +0 meters. Off Bridgetown only loading sailing vessels under 100 tons. In the harbor the same impression. Moved off on course 270°.
			Day's run: Surfaced 176 nm, Submerged 6.5 nm.
	16.00	EE 7126
	20.00	EE 7125
	23.30		Course 330°.

	Sun and Moon Data 15.07.42
	Sun and Moon Data 16.07.42
	Sun and Moon Data 17.07.42

- 12 -



	continued
	17.07.42
	24.00	EE 7121

	18.07.42
	00.15		Surfaced.
	04.00	ED 6999	Crossed the St. Vincent St Lucia Passage in the night. Where strong searchlights are, there must be something going on! However despite good visibility there is nothing to see.
		N 2, Sea 1-2, clear, Vis. good, summer lightening
	08.00	ED 6987
		N 2, Sea 1-2, clear to cloudy, summer lightening, Vis. good
	10.42		Dived to proceed submerged.
	12.00	ED 6957	Day's run: Surfaced 81 nm, Submerged 35.5 nm.
		N 2, Sea 1-2, cloudy, Vis. changing
	16.00	ED 6948	By day proceeded submerged at the southern tip of St. Lucia. Here there is heavy air traffic. On land large new barracks, apparently aircraft training camp. Traffic only small sailing vessels and motorboats under land.
	20.00	ED 6945
	24.00	ED 6863
			No traffic in the Passage.
			Moved off, because searchlights reach 8-10 nm.

	19.07.42
	02.47		Surfaced.
	04.00	ED 6861	Again cruised in the Passage. No traffic. Very strong searchlights around the island, shining intermittently.
		N 1, Sea 1, lightly cloudy, Vis. good, summer lightening
	08.00	ED 6896
		NW 1-2, Sea 1, heavy overcast, Vis. medium, summer lightening
	10.39		Closed again at dawn. Dived to proceed submerged.
	12.00	ED 6945	Day's run: Surfaced 70 nm, Submerged 36 nm.
	16.00	ED 6942	Proceeded close under the coast to Port Castries with the strong northwesterly current (up to 3 knots). A coastal steamer of about 800 tons lies in the Grand Cul De Sac Bay.
	20.00	ED 6916
	24.00	ED 6913	Went into the entrance in the evening twilight..

	20.07.42
	00.25		To Action Stations.
			The harbor is like a "duck pond", only large sailing vessels are distinguished. In the middle there is a patrol vessel at the narrowest point. Mines are deployed according to plan, the first at 00.48 hours, one lies exactly in the channel off the barrier.
			Mine laying on the surface would be impossible because a searchlight illuminates the entrance very often at irregular intervals.
			The first three mines were laid proceeding by the forestem

	Sun and Moon Data 17.07.42
	Sun and Moon Data 18.07.42
	Sun and Moon Data 19.07.42
	Sun and Moon Data 20.07.42

- 13 -



	continued
	20.07.42		[moving ahead] then the boat proceeded by the the stern post [moving astern] drawing out of the 60 meter wide and between 12 and 17 meter deep channel and in so doing laid the last three TBM green. Last mine at 01.09 hours. Total laying time 21 minutes. Boat can also be held while moving astern very well if it is exactly balanced. Even AK reverse, which was required by the barrier presented no difficulties to the Engineering Officer. While moving astern the boat must lie absolutely on an even keel, because otherwise it cannot be held in 12-17 meters of water. For this purpose trimming is best done with soldiers.
	02.42 02.44		Ran submerged up to the entrance of the Grand Cul De Sac Bay. Turned. After the searchlight from Port Castries had shined, surfaced, so that the conning tower hatch was just clear, to knock off the steamer, despite approaching to within 800 meters, nothing is seen. The moon is in the west, so that our silhouette is easily seen from land. Further penetration of the bay in darkness is not possible, because there is very little water, and the channel is very narrow. At the illumination of the searchlight again dived and moved off.
	04.00	ED 6914	(Proceeding on the surface is not possible, because the searchlight illuminates approximately every 5 minutes for 2-3 minutes.)
			Mining completed undetected.
	04.14		Surfaced.
	05.48		Radio Message: "U-66" Short Signal transmit ltiq, just now task completed.
	07.05		Radio Message: Have completed mining in accordance with orders. - U-66 -
	08.00	ED 6825
		SW 2-3, Sea 1, cloudy, rain showers, Vis. changing
	10.46		Radio Message: Markworth operate in area ED 90 in accordance with "Heydemann" situation report.
			Heydemann situation report:
			3 days north of Tobago no traffic observed. In 17 July in Tobago-Passage sighted: Mornings 5 independents entering, 1 patrol vessel . . . . Evening departing tanker "San Caspar".
	11.16		Dived to proceed submerged.
	12.00	ED 6763	Day's run: Surfaced 57 nm, Submerged 35.5 nm.
		SW 2-3, Sea 1, overcast, rain showers, Vis. medium
	16.00	ED 6766
	16.52		Surfaced.
	17.37		Crash dive for training.
	20.00	ED 6792
		SSE 3, Sea 2-3, heavily cloudy, summer lightening, Vis. medium
	20.10		Surfaced.
	24.00	ED 9153
		SSE 3, Sea 2-3, cloudy, Vis. medium, summer lightening

- 14 -




	21.07.42
	04.00	ED 9157
		ESE 3, Sea 3, heavily cloudy, summer lightening, Vis. medium
	08.00	ED 9418
		SSE 3-4, Sea 3, cloudy, summer lightening, Vis. good

	08.15	ED 9418	2 lights in succession bearing 180°T. They are 2 illuminated neutral steamers. The tanker "REMEDIOS", course 290° and a steamer whose name was not recognized, course 150°.
	10.30		Steamer out of sight bearing 40°T.
	11.14		Tanker out of sight bearing 320°T.
	11.30		Course 135°.
	12.00	ED 8661	Dived to proceed submerged.
		SSE 3-4, Sea 3, heavily cloudy, Vis. changing	Day's run: Surfaced 136 nm, Submerged 15 nm.
	16.00	ED 8665
	20.00	ED 8669
	22.45	ED 8693	Went to depth A -10 meters for aircraft. Had course 35x°, 2 engines, high winged, slow.
	23.35	ED 8693	Went to depth A +0 meters for aircraft.
	24.00	ED 9471

	22.07.42
	00.30		Surfaced.
	00.41	ED 9471	Crash dive for aircraft, course 350°. To depth A -50 meters.
	00.45		Course 45°.
	01.03		Surfaced.
	04.00	ED 9446
		EbyN 3-4, Sea 3, heavy overcast, Vis. medium, summer lightening
	06.00		Course 135°.
	08.00	ED 9456
		E 3, Sea 1-2, lightly cloudy, Vis. good, summer lightening
	09.52 - 10.52		Due to work on the over deck, course 105°.
	10.52		Course 205°.
	10.55		Course 90°.
	11.21		Dived.
	12.00	ED 9496	Day's run: Surfaced 78 nm, Submerged 24 nm.
		EbyN 2, Sea 2, cloudy, Vis. good
	13.25		Course 160°.
	16.00	ED 9483
	18.15		Surfaced.
	19.02	ED 9486	Crash dive for aircraft bearing 70°T, course 160°.
	20.00	ED 9486
		EbyS 2, Sea 2, cloudy, Vis. good
	24.00	ED 9731

- 15 -




	23.07.42
	01.18		Surfaced.
	04.00	ED 9754
		ESE 2-3, Sea 2, overcast, rain showers, Vis. medium, summer lightening
	04.12		Course 260°.
	05.17 - 10.36		On various courses cruising under land.
	07.00		Lighthouse in sight bearing 210°T (Carupano).
	07.40		Lighthouse out of sight bearing 150°T.
	08.00	ED 9724
		SE 3, Sea 2, overcast, Vis. good, summer lightening
	10.36		Dived to proceed submerged.
	12.00	ED 9727	Day's run: Surfaced 81 nm, Submerged 23 nm.
		SE 2-3, Sea 2, heavy overcast, Vis. good
	16.00	ED 9728
	20.00	ED 8969
	24.00	ED 8968

	24.07.42
	00.45		Surfaced.
	03.20	ED 8931	Testigos abeam to starboard, range = 14 nm.
	04.00	ED 8931
		EbyN 3, Sea 3, heavily cloudy, rain showers, summer lightening, Vis. good	Course 65°.
	06.00		Course 90°.
	08.00	ED 9472
		ESE 3, Sea 2-3, heavily cloudy, Vis. good
	11.56		Dived to proceed submerged.
	12.00	ED 9483	Day's run: Surfaced 75 nm, Submerged 27.8 nm.
		ESE 2, Sea 1, lightly cloudy, Vis. good
	14.38	ED 9491
	16.00	ED 9492
	20.00	ED 9493
	24.00	ED 9495

	25.07.42
	01.00		Surfaced.
	02.30	ED 9467	Steamer lights in sight bearing 125°T. Dived.
	02.46		To Action Stations. Steamer is the Spanish tanker "CAMPECHE". Course 310°.
	03.30		Course 110°.
	03.40		Surfaced.
	04.00	ED 9468
		EbyN 2-3, Sea 1-2, cloudy, Vis. good	Steamer out of sight bearing 310°T.
	08.00	ED 9584
		ENE 2, Sea 1-2, overcast, Vis. medium
	09.00		A parachute flare bearing 140°T.

	Sun and Moon Data 23.07.42
	Sun and Moon Data 24.07.42
	Sun and Moon Data 25.07.42

- 16 -



	continued
	25.07.42
	09.35		Searchlight bearing 170°T. (Entrance to Trinidad).
	09.51	ED 9588	Shadow bearing 110°T. Turned away hard and on opposite course, because the shadow came out of the haze suddenly and was high out ahead of us. After a few minutes the shadow disappeared again. Therefore turned towards again. Nothing seen. After 10 minutes a small sailing vessel in sight abeam to starboard.
	10.32		Course 70°.
	11.24		Dived.
	12.00	ED 9589	Day's run: Surfaced 86 nm, Submerged 29 nm.
		E 2-3, Sea 2, heavily cloudy, Vis. medium
	16.00	ED 9597
	20.00	ED 9598
	24.00	ED 9596

	26.07.42
	01.10		Surfaced.
	01.47		Course 90°.
	04.00	ED 9673
		NE 4-5, Sea 4, cloudy. Vis. changing
	06.29		Radio Message: . . . . 3) . . . . Markworth report situation.
	06.58	ED 9692	Shadow bearing 60°T. Bow right. Came to course 255°, maneuvered ahead at HF and 2 x GF, general course 230°.
	07.35		Shadow astern. To Action Stations.
	07.39		Dived to attack submerged by the moon due to brightness.
	08.00	ED 9694	Stern approach. Large steamer, therefore target angle = 80°, target speed = 9 knots, range = 1000 meters, depth = 3 meters. On diving I estimated target speed = 10 knots, by plotting 8 knots.
		NE 5, Sea 4, overcast, Vis. medium
	08.15		2 torpedoes shot. With first hit no effect, with second hit high black explosion column in white water column. Both hits aft 10 meters. Steamer remains lying with a list. Nothing heard on the 600-meter wave. In sound gear the propeller makes 64 RPM. Steamer slowly settles.
	08.58	ED 9694	Surfaced. Steamer has heavy list, capsizes and sinks over the sternpost.
			Appearance: Straight stem, from the top of the forward kingpost a double mast, kingpost just ahead of small bridge, low cutaway [lowered areas of a ship's side where the gunwale is at the same height as the deck], kingpost at the smokestack, kingpost, double mast and kingpost at the poop deck. Type "TJIBESAR".
	11.25		Dived.
	12.00	ED 9692	Day's run: Surfaced 71 nm, Submerged 28 nm.
		EbyN 3-4, Sea 3-4, overcast, Vis. medium
	12.21		Course 50°.
	16.00	ED 9669
	20.00	EE 7444
	24.00	EE 7441	Course 0°.

- 17 -




	27.07.42
	01.01		Surfaced.
	04.00	EE 7444	Course 105°. Set off to download torpedoes.
		EbyS 2, Sea 2, cloudy, Vis. good
	08.00	EE 7483
		EbyN 2-3, Sea 2-3, cloudy, Vis. good
	12.00	EE 7574	Day's run: Surfaced 96 nm, Submerged 23 nm.
		ENE 3-4, Sea 3, cloudy, Vis. good
	13.00		Course 65°.
	13.50		Radio Message (situation report):
			1) Except for three neutrals in Passage no traffic from 69 via 68 to 9779 and 95.
			2) Just now in 9697 type "TJIBEAR" course 230°, sunk.
			3) No sea, heavy air patrol in 69, 97 - 96.
			2) 147 cbm, 9 + 8 torpedoes, trade wind 4, Vis. good. Missing Serial No. 230 of 18 July, 13 of 21 July, 74, 77, 78, 93.
			5) 9690. All naval square ED.
			- Markworth -
	16.00	EE 7558
		ENE 3-4, Sea 3, cloudy, Vis. good
	19.57	EE 7563	Masthead bearing 150°T.
	20.00	EE 7563	Maneuvered ahead, general course 260°. Steamer zig zags heavily and irregularly. Occasionally passes out of sight because visibility is heavily changing.
		ENE 2, Sea 1-2, overcast, rain showers, high swell, hazy, Vis. changing
	23.23		Dived for submerged attack. Both periscopes are very bad, although there is now good visibility, the steamer first comes in sight in the air search periscope at 6000 meters, even though I went to depth 12 meters.

	24.00	EE 7584
		E 2, long swell, Sea 1-2, heavily cloudy, Vis. medium

	28.07.42
	00.38		I shoot one torpedo at target angle 70°, as a result of the twilight I can no longer determine whether the target angle is acute or obtuse. Passed!
			Target angle = 70°, target speed = 9 knots, range = 1200 meters, depth = 3 meters.
	00.40		The second torpedo was shot at target angle = 90°, target speed = 9 knots, range = 1000 meters, depth = 2 meters.
			Hit at the aim point aft 10 meters, heavy detonation column, apparently at the same moment a boiler explosion. Steamer settles deeper aft. Cannon was made ready and aimed at the periscope and rod antenna. Steamer does not transmit. After 37 minutes the bulkhead to the cargo hold breaks.
	01.17	BE 7584	The steamer rights itself briefly and sinks quickly over the stern post. Steamer is like "ALANMOOR", on the forecastle a sprit for mine search gear. Has noticeably a lot of rafts in the rigging both fore and aft.
			Moved off on course 70°.
	04.00	EE 7596
		E 2, Sea 1-2, overcast, Vis. medium, rain showers

- 18 -



	continued
	28.07.42
	08.00	EE 7683
		E 2-3, Sea 2, cloudy, Vis. good
	11.38 - 11.59		Test dive.
	12.00	EE 8445	Day's run: Surfaced 192 nm, Submerged 28 nm.
		E 2, Sea 1-2, heavily cloudy, Vis. medium
	14.00		New course 120°.
	16.00	EE 8455
		EbyN 3, Sea 2-3, lightly cloudy, Vis. good
	20.00	EE 8574
		ENE 3, Sea 2-3, heavily cloudy, Vis. good
	24.00	EE 8822
		ENE 2-3, Sea 2, cloudy, Vis. good

	29.07.42
	00.30		Downloaded torpedoes.
			Due to the wind came to course 240°.
	01.20		1st torpedo below decks.
	04.00	EE 8817
		ENE 2-3, Sea 2-3, cloudy, Vis. good
	06.40		8th torpedo below decks.
			Forward 6, aft 2 torpedoes transferred. Downloading presented no difficulties despite the swell. To transfer astern main ballast tank 7 was filled, 8 partially flooded and 2 blown.
	08.00	EE 8752
		EbyN 2-3, Sea 2, cloudy, Vis. good
	09.40		Course 120°.
	11.26		Test dive.
	12.00	EE 8744	Day's run: Surfaced 182 nm, Submerged 0.2 nm.
		EbyN 3, Sea 2-3, lightly cloudy, Vis. good
	12.57		Surfaced.
	14.00		Course 60°.
	16.00	BE 8754
		ENE 3-4, Sea 3, overcast, rain showers, Vis. medium, hazy horizon
	20.00	EE 8738	Course 235°.
		EbyN 4, Sea 3, cloudy, Vis. good
	20.26	EE 8738	Two mastheads in sight bearing 20°. Turned towards. 2 patrol vessels come up quickly out of the haze.
	20.28	EE 8738	Crash dive for Sunderland, flew close to the water and positioned with both vessels. Range = 8 nm.
			Observed at periscope depth. Patrol vessels lie

- 19 -



	continued
	29.07.42
	20.28		exactly towards me. Course 30°. Approaches to 4500 - 500 meters, then disappears in a rain squall. Nothing heard in the sound gear. Due to the Sunderland and unfavorable clouds remained submerged until 23.00 hours. Apparently a search group.
	23.00		Surfaced.
	23.55		Course 225°.
	24.00	EE 8762
		EbyN 3-4, Sea 3, overcast, rain showers, Vis. medium

	30.07.42
	02.20		A green star over the horizon bearing 170°T. Because I suspect that it is fired by an escort, turned towards it. Came to course 180°.
	03.27		Came to course 240°. Search broken off.
	04.00	BE 8757
		ENE 3-4, Sea 3, heavily cloudy, Vis. good
	05.00		Course 315°.
	06.34		Radio Message: 28 July EE 7584 freighter 6500 GRT, course 260°, sunk. 29 July EE 8750 two patrol vessels with Sunderland, course 30°.
			Intention: Via ED 9680 to operations area "Lassen". Downloaded 7 + 8 torpedoes, 134 cbm. Trade wind 3, Vis. changing. All naval squares.
			- Markworth -
	08.00	EE 8724
		ENE 3, Sea 2-3, overcast, rain showers, Vis. medium
	12.00	EE 7922	Day's run: Surfaced 146.5 nm, Submerged 8.0 nm.
		ENE 2, Sea 1-2, overcast, rain showers, Vis. changing
	15.09		Crash dive for training.
	15.44		Surfaced.
	16.00	EE 7647
		E 2-3, Sea 2, cloudy, Vis. good, hazy horizon
	20.00	EE 7534
		E 2, Sea 1, clear to cloudy, Vis. good	Course 250°.
	23.05	EE 7543	Crash dive for aircraft. Biplane, land-based aircraft, medium altitude, bearing 340°T, course 160°. Went to depth A -20 meters.
	23.07		Course 180°.
	24.00	EE 7543
		EbyN 1, Sea 1, cloudy, Vis. good

	31.07.42
	00.25		Surfaced.
	04.00	EE 7453
		EbyN 1-2, Sea 1, overcast, Vis. medium
	08.00	EE 7445	Course 230°.
		EbyN 1-2, Sea 1, heavily cloudy, rain showers, Vis. medium