U-66 - 9th War Patrol

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

Departed	Date	Arrived	Date	Days at Sea
Lorient	7 April 1943	Lorient	1 September 1943	148

 

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 Hit
Date	KTB Time	Position	Ship	Tons	Nationality	Convoy
10 Jun	20.58	31°23'N, 79°00'W	ESSO GETTYSBURG	10,173	American
2 Jul	06.07 - 06.30	31°23'N, 78°36'W	BLOODY MARSCH	10,195	American
22 Jul	09.16 - 11.16	25°22'N, 68°38'W	CHERRY VALLEY (damaged)	10,172	American
			Total = 30,540
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"
				Beginning:  25.3.1943
				Ending:      01.9.1943
			Time zone:        D.G.Z.
			All naval squares
			Operating per Operations Order 54
			Kommandant: Kapitänleutnant  M  a  r  k  w  o  r  t  h.
			Distribution: 2 x O.K.M.   1 x B.d.U. U. -Op.-   1 x Kmdr.Adm.Uboote.   1 x F.d.U.-West-   1 x F.d. U.-Ausb.-   1 x 27.U-Flottille 1 x 2.U-Flottille
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
		25.03.43	Lorient S II	Torpedo offload from 16.00 to 20.00 hours, fuel oil and munitions offload.  Cleared the boat.
		26.03.43	S II	Towed to Keroman Bunker 18, lubricating oil offload, Cleared the boat.
		27.03.43	K 18	Cleared the boat.
		28.03.43	K 18	Towed and dry docked in Bunker III.
		29.03.43 -
		28.04.43	K III	Shipyard work.
		08.04.43	K III	Undocked for Keroman Bunker 14.  When the boat was refloated a leak was discovered in tube IV.  Redocked and a new gasket installed in tube IV.
		09.04.43 -
		20.04.43	K 14	Shipyard overhaul.
		21.04.43	K 14	Torpedoes loaded, fuel oil loaded, dockyard testing.
		22.04.43	K 14	Test run, check fired flak armament and machine guns.
		23.04.43	S 1	Completion of the shipyard period.  Equipping.
		24.04.43	S 1	Equipping, final adjustments and overhaul.
		25.04.43	S 1	Final trim testing.
		26.04.43	S 1	Final equipping, ready for sea and diving.
		27.04.43
		18.00		Departed on 9th war patrol.
		18.20		Taken in convoy.
		20.15	NW 2-3, Vis. 10 nm	Released from convoy.
		22.00		Enemy radar detection, proceeding submerged.
		24.00	On Route
			N 2, 9/10, strong marine phosphorescence
		28.04.43		While proceeding submerged a strong odor issued from new insulation of the exhaust manifold.  Because CO2 development was assumed smoke was evacuated by the diesel, and absorbed by potash cartridges.  In spite of using escape lungs several sailors collapsed after a while, even in other spaces.  Other gases were not discovered with the new gas examiner.  CO2 content amounted to 0.7%.  On surfacing a few more sailors collapsed.  Because under these conditions an extended underwater passage in the Bay of Biscay could not be justified, return transit to Lorient.
		02.05		Radio Message:  Returning because of the appearance of unknown gas while proceeding submerged.  Positioned 04.00 hours Point Laterne.
				"Markworth"
		03.05		Crash dive! for radar detection.
		05.05		Surfaced.
		05.33		Crash dive! for radar detection.
		06.16		Surfaced.
		08.00		Taken in by Sperrbrecher.
		10.20		Made fast in Skorff Bunker.
		19.00 -		Testing.
		24.00
		29.04.43		Skorff Bunker.  Work on the diesel and E-motors operating exercises.

	Sun and Moon Data 27.04.43
	Sun and Moon Data 28.04.43
	Sun and Moon Data 29.04.43

	- 2 -
		continued
		29.04.43
		18.00		Departed on 9th war patrol.
		18.10	W 1, Sea 0, 8/10, Vis. 10 nm	In convoy with Sperrbrecher.
		20.55		Released from Sperrbrecher convoy.
		30.04.43
		xx.xx	WSW 2, Sea 1, overcast, strong marine phosphorescence	Passed various illuminated fishing vessels.
		04.00	BF 5471	Released from convoy.
		05.18		Crash dive for training.
		08.00	BF 5496
		12.00	BF 5499	Day's run:  Surfaced     107 nm
				Submerged 10.5 nm
		16.00	BF 5732
		20.00	BF 5735
		23.34		Surfaced.
		24.00	BF 5738
		01.05.43
		00.35		Crash dive for training.
		04.00	BF 5764
		05.05		Surfaced.
		05.06		Crash dive for radar detection.
		05.42		Surfaced.
		06.20		Crash dive for radar detection.
		08.00	BF 5785
			NNE 3, Sea 2, 4/10
		12.00	BF 5785	Day's run:  Surfaced     12 nm
				Submerged 34.5 nm
		16.00	BF 5788
		20.00	BF 8213
		22.48		Surfaced.
		23.42		Crash dive for training.
		24.00	BF 8217
		02.05.43
		04.00	BF 8241
		04.35		Surfaced.
		05.40		Crash dive for training.
		08.00	BF 8192
		12.00	BF 8192	Day's run:  Surfaced     21 nm
			NNW 4, Sea 4, overcast	Submerged 32.5 nm
		16.00	BF 8194
		20.00	BF 8197
		22.45	NNW 4, 6/10, Sea 4, strong marine phosphorescence	Surfaced.
		23.40		Crash dive for training.
		24.00	BF 8426
		03.05.43
		00.00 -	NNW 4, Sea 4, 5/10, Vis. clear, medium marine phosphorescence	Drills.
		02.00
		04.00	BF 8428
		04.11		Surfaced.

	Sun and Moon Data 29.04.43
	Sun and Moon Data 30.04.43
	Sun and Moon Data 01.05.43
	Sun and Moon Data 02.05.43
	Sun and Moon Data 03.05.43

	- 3 -
		continued
		03.05.43
		04.15		Steamer light bearing 130°T.
		05.17		Steamer light bearing 280°T.
		05.38		Steamer light bearing 220°T.
		06.11		Crash dive for training.
				Radio Message. . . .     5.)  . . .Markworth . . . assemble in naval square BD 33, depth 80 nm.  More to follow.
		08.00	BF 7693
			NNW 3, Sea 3, 8/10, Vis. 6 nm
		12.00	BF 7934	Day's run:  Submerged   32.5 nm
				Surfaced          33 nm
		16.00	BF 7929
		20.00	BF 7952
			NNW 4, 9/10, Sea 5, (rain), Vis. clear, strong marine phosphorescence
		22.35		Surfaced.
		24.00	BF 7953
		04.05.43
			NW 5, 8/10, Sea 5, strong marine phosphorescence
		03.25		Steamer bearing 260°T on northerly course.
		04.00	BF 7942	Several steamer lights.
		06.00	NNW 6, 8/10, Sea 6, strong marine phosphorescence	Dived.
		08.00	BF 7853
		12.00	BF 7852	Day's run:  Surfaced      72 nm
				Submerged  20 nm
		16.00	BF 7851
		20.00	BF 7843
		21.00 -		Drills.
		22.00
		22.31		Surfaced.
		22.32		Crash dive for radar detection (naval reconnaissance)
		24.00	BF 7841
			NNE 4, 8/10, Sea 4-5, strong marine phosphorescence
		05.05.43
		00.26		Surfaced.
		00.52		Crash dive!
		03.11		Surfaced.
		04.00	BF 7761
			NW 6, 4/10, Sea 6, medium marine phosphorescence, Vis. good
		04.20		Crash dive for training.
		08.00	BF 7752
			NW 7, Sea 6
		12.00	BF 7751	Day's run:  Surfaced      17 nm
				Submerged  44 nm
		16.00	BF 7743
		15.02		Radio Message . . . . 2.) . . . . . Markworth. . . .
				Occupy at economical cruising speed.  Patrol line from BD 3238 to AL 1843.  Later transit to the north to combine with boats named in [paragraph] 1 in patrol line is [illegible word]. [From U-190's KTB the illegible word is intended.]

Note:  From BdU's KTB, the patrol line in the radio message received on 5 May at 15.02 is actually from BD 3238 to BE 1843.

	Sun and Moon Data 03.05.43
	Sun and Moon Data 04.05.43
	Sun and Moon Data 05.05.43

	- 4 -
		continued
		05.05.43
		20.00	BF 7741
		23.16	NNW 5, Sea 5, 8/10, Vis. moderate, strong marine phosphorescence	Surfaced.
		24.00	BE 9962
		06.05.43
		03.48	NNW 4-5, Sea 5, 8/10	Starboard diesel out of service, tie rod and crank case torn in several places.
		04.00	BE 9943
			NW 5-6, 2/10, Sea 5, (rain)
		05.57		Crash dive for training.
		08.00	BE 9941
		12.00	BE 9862	Day's run:  Surfaced      65 nm
				Submerged  34 nm
		14.24		Radio Message . . . . Markworth. . . . send passage report immediately.
		16.00	BE 9861
			NW, 6/10, Sea 5
		20.00	BE 9853
		22.32	NW 3-4, 3/10, Sea 3 medium marine phosphorescence	Surfaced.
		24.00	BE 9851
		07.05.43
		03.30	NNW 3, 3/10, Sea 4	Crash dive for aircraft with a lighted turret.
		04.00	BE 9817
		05.19		Radio Message  1.)  Starboard diesel tie rod cylinder 7-8 broken.
			WNW 3, 7/10, Sea 3, moderate marine phosphorescence	2.) Will finish repairs to crankcase and bearing this evening.
				3.) Question allowable load.
				4.)  BE 89.
		07.00		Dived.
		08.00	BE 9735	Fire fighting training.
		12.00	BE 9731	Day's run:  Surfaced      54.5 nm
				Submerged  31    nm
		14.23		Radio Message Diesel with broken tie rod limited to only HF load.  Avoid oscillation points.
		14.23		Radio Message  Contrary to previous orders new staging point for . . . . Markworth AJ 30.  No message on arrival.
		16.00	BE 9723
		16.48		Surfaced.
		17.02		Dived.
		20.00	BE 9722
		21.56	W 2-3, 9/10, Sea 5	Surfaced.
		24.00	BE 9725
		08.05.43
			WNW 5, overcast, Sea 5, strong marine phosphorescence
		04.00	BE 9715
		07.06		Crash dive for training.
		08.00	BE 9741
			NW 6, Sea 5
		12.00	BE 8963	Day's run:  Surfaced      51.5 nm
				Submerged  29.5 nm

	Sun and Moon Data 05.05.43
	Sun and Moon Data 06.05.43
	Sun and Moon Data 07.05.43
	Sun and Moon Data 08.05.43

	- 5 -
		continued
		08.05.43
		15.25	NW 4, 6/10, Sea 5, Vis. good, marine phosphorescence	Surfaced.
		16.00	BE 8938	Crash dive for training.
		20.00	BE 8961
		22.40	WNW 4-5, 4/10, Sea 5	Surfaced.
		24.00	BE 8943
		09.05.43	NNW 4-5, overcast, Sea 5
		04.00	BE 8862
			NNW 4, 4/10, Sea 5
		07.31		Crash dive for training.
		08.00	BE 8851
			NNW 4-5, Sea 5, 9/10
		12.00	BE 8842	Day's run:  Surfaced      71.5 nm
				Submerged  22.5 nm
		15.39		Surfaced.
		15.40		Crash dive for training.
		16.00	BE 8841
		17.48	W 3, 7/10, Sea 4	Surfaced.
		18.19		Crash dive for training.
		20.00	BE 8763
			SW 5, overcast, Sea 5
		21.23	SW 7, overcast, Sea 6-7	Surfaced.
		24.00	BE 8761
		10.05.43	SW 7, overcast, Sea 6-7 (rain)
		04.00	BE 8727
			Medium marine phosphorescence, Vis. changing, rain showers
		08.00	BE 8711
			W 6-7, Sea 6, overcast
		09.00		Dived.
		12.00	BE 7699	Day's run:  Surfaced      66.5 nm
			W 3, 8/10, Sea 3-4	Submerged  25.5 nm
		13.48		Surfaced.
		15.46		Crash dive for training.
		16.00	BE 7694
		16.02	W 3, 4/10, Sea 3-4	Surfaced.
		18.32		Radio Message  1.)  28 April DC 9261 U-cruiser Type "NARWHAL" 170°, 14 knots, dived.
				2.)   DC 12-14, independents going SW on the 100-meter line apparently by fits and starts, "Hatteras" night leg, no sea surveillance.  6 May after transmitting square 2280, night radar detection 162 cm, destroyer course 130° high speed without detection, heavy air by day.
				3.)  Night of 7 May CA 8825 tanker in ballast 8000 GRT 180° 9 knots straight course.  3 fan miss Ato depth 5 meters, 2 single misses Eto depth 4 meters unexplained.  Both times matched speed exactly, Sea 4, torpedo course into the sea.  Return transit.
				4.)   Yesterday CA 9997 last torpedo on a large tanker, miss 150° 17.5 knots.
				5.)  CB 7914, 39 cbm.  Request barrel for Flak 38 . . . .
				"U-129"

	Sun and Moon Data 08.05.43
	Sun and Moon Data 09.05.43
	Sun and Moon Data 10.05.43

	- 6 -
		continued
		10.05.43
		20.00	BE 7854
			W 4, 4/10, Sea 5
		21.35		Radio Message  Bargsten, Markworth, Wintermyer make for CA 87.
				Intention:  Above the Azores to "Cape Hatteras" from the south (with the Gulf Stream) because enemy south-north traffic will use the strong current (80 nm/day's run).
		24.00	BE 7642
			W 3, 4/10, Sea 4, no marine phosphorescence
		11.05.43
			WSW 4, 3/10, Sea 3, (rain)
		04.00	BE 7561
			Moonshine, light marine phosphorescence
		08.00	BE 7551
		08.45	SW 3-4, 4/10, overcast (rain)	Crash dive for training.
		12.00	BE 7542	Day's run:  Surfaced      109 nm
				Submerged  12.5 nm
		16.00	BE 7436
			SSW 6, Sea 5, mist, overcast
		16.50		Surfaced.
		17.45		Crash dive for training.
		20.00	BE 7434
			WbyS 6, Sea 6, 6/10, strong marine phosphorescence
		21.14		Surfaced.
		24.00	BE 7456
		12.05.43
			SW 6, Sea 6, 2/10
		04.00	BE 7483
			Lightening, strong marine phosphorescence
		08.00	BE 7473
			WSW 5-6, Sea 6, 9/10
		08.30		Crash dive for training.
		12.00	BE 7474	Day's run:  Surfaced      55.5 nm
			SW 5, 6/10, Sea 5	Submerged  32.5 nm
		12.20		Surfaced.
		14.27		Crash dive for training.
		16.00	BD 9693
		20.00	BD 9691
		23.15		Surfaced.
		24.00	BD 9688
		13.05.43
			SSW 2, 4/10, Sea 2, long swell, no marine phosphorescence
		04.00	BD 9958
			SW 3, 4/10, Sea 3, no marine phosphorescence

	Sun and Moon Data 10.05.43
	Sun and Moon Data 11.05.43
	Sun and Moon Data 12.05.43
	Sun and Moon Data 13.05.43

	- 7 -
		continued
		13.05.43
		08.00	CE 3238
		09.00		Crash dive for training.
		12.00	CE 3256	Day's run:  Surfaced     110.5 nm
				Submerged      31 nm
		12.45		Surfaced.
		12.47		Crash dive for training.
		12.55		Surfaced.
		13.59	SW 2, 5/10, Sea 3	Crash dive for training.
		16.00	CE 3281
			NW 4, Sea 3, 5/10
		18.52		Surfaced.
		19.35		Radio Message  Markworth report weather.
		20.00	CE 3278
		21.41	NNW 4, Sea 4, 7/10	Crash dive for training.
		22.40		Surfaced.
		24.00	CE 3437
		14.05.43
			NNW 3, 4/10, Sea 3, Vis. good, weak marine phosphorescence
		04.00	CE 3448
		06.04		Short Weather Message sent.
		08.00	CE 2685
			NNW 3, Sea 2-3, 9/10 (rain)
		08.37		Crash dive for training.
		08.45		Surfaced.
		08.58	NNW 3, 5/10, Sea 3	Crash dive for training.
		11.40		Surfaced.
		12.00	CE 2679	Day's run:  Surfaced      128 nm
			NNW 3, 4/10, Sea 3	Submerged  20.5 nm
		14.01		Crash dive for training! Blowing! and 2 cm clear.
		15.30		Crash dive for training.
		16.00	CE 2837
		16.52		Surfaced.
		16.57		Crash dive for training.
		17.20		Surfaced.
		18.44	N 4, 6/10, Sea 3	Crash dive for training.
		18.51		Surfaced.
		20.00	CE 2846
			N 3, 9/10, Sea 2-3
		21.44 -		"Flores" in sight.
		22.27
		24.00	CE 2765
		15.05.43
		01.43	NbyE 3, 9/10, Sea 2-3, no marine phosphorescence	Radio Message  1.)  On 15 May 10.00 hours "Markworth" switch to America II Circuit.
				2.) "Markworth" report weather.
		04.00	CE 2784
		08.00	CE 4332
		10.00	NbyE 3, 7/10, Sea 2-3	Switched to America II Circuit.
		12.00	CE 4351	Day's run:  Surfaced     124.5 nm
				Submerged      4.5 nm

	Sun and Moon Data 13.05.43
	Sun and Moon Data 14.05.43
	Sun and Moon Data 15.05.43

	- 8 -
		continued
		15.05.43
			NbyE 4, 5/10, Sea 4
		15.15		Crash dive for training.
		15.46		Surfaced.
		16.00	CE 4347
			N 4, 7/10, Sea 4
		20.00	CE 4258
			N 5, Sea 4-5, 4/10
		21.59		Radio Message  "Markworth" report weather.
		24.00	CE 4196
		16.05.43	NE 4, 3/10, Sea 4, Vis. 10 nm, no marine phosphorescence
		03.27		Radio Message  "Markworth" immediately switch to America Circuit.  Serve as radio repeater for U-boats in the North Atlantic.
		04.00	CE 4423
		06.38		Reported weather by Short Signal.
		06.50		Crash dive for training (radar detection).
		07.05		Surfaced.
		07.20		Crash dive for training.
		07.25		Surfaced.
		07.55		Crash dive for training.
		08.00	CE 4419
		08.07	N 5, 6/10, Sea 4	Surfaced.
		12.00	CD 6659	Day's run:  Surfaced     162 nm
				Submerged   2.8 nm
		15.00	N 4, Sea 4, 3/10	Crash dive for training.
		16.00	CD 6677	Surfaced.
		16.26		Radio Message  "Markworth" on 17 May at 00.00 hours switch to Hubertus Circuit.
		18.59	NbyE 4, 3/10, Sea 4, Vis. good 10 nm	Crash dive for training.
		20.00	CD 6826
		20.06	N 4, 6/10, Sea 3	Surfaced.
		20.00 -
		23.00		Combat exercises.
		24.00	CD 6845
		17.05.43
		00.00	N 3, 7/10, Sea 2, no marine phosphorescence, moonshine	Switched to Hubertus Circuit.
		04.00	CD 6792
		08.00	CD 9121
			W 2, Sea 1, 8/10
		12.00	CD 8339	Day's run:  Surfaced     176.5 nm
			SbyW 3-4, 7/10, Sea 3, Vis. good	Submerged     2.5 nm
		16.00	CD 8329
		19.17	SbyW 1, Sea 2, overcast, rain	Crash dive for training.
		19.34		Surfaced.
		20.00	CD 8345
		20.10		Crash dive for training.

	Sun and Moon Data 15.05.43
	Sun and Moon Data 16.05.43
	Sun and Moon Data 17.05.43

	- 9 -
		continued
		17.05.43
		20.23		Surfaced.
		20.25		Crash dive for training and blowing.
		20.34	SW 1, overcast, passing showers, (rain), Sea 2, long medium-high swell	Crash dive for training and blowing.
		21.21		Radio Message . . . . 2.) "Markworth" Short Signal weather report before 05.00 hours. . . .
		24.00	CD 8292
		18.05.43
			SbyW 2, Sea 1, overcast (rain), long SW-swell, Vis. moderate 3-5 nm, strong marine phosphorescence
		03.10		Shadow to port.
		04.00	CD 8523
		04.01		2 cm ready!
		04.08		Shadow is a large floating whistle buoy.  Sunk by flak bombardment.
		04.54		Sent Short Signal.
		08.00	CD 8518
			ESE 3, Sea 2, 6/10, Vis. good, no marine phosphorescence
		12.00	CD 8465	Day's run:  Surfaced      159 nm
			E 3, 3/10, Sea 2, long swell, Vis. good	Submerged   2.5 nm
		16.00	CD 8468
		20.00	CD 8488
		20.44	E 2, Sea 2, 4/10 (rain)	Crash dive for training.
		21.00		Surfaced.
		24.00	CD 8715
			NNE 2, 2/10, Sea 1, long swell
		19.05.43
		04.00	CD 7964
			NE 2, 2/10, Sea 2, long medium-high swell, no marine phosphorescence, Vis. good, bright moonshine
		08.00	CD 7973
		10.46	NW 3, Sea 2, 5/10	Radio Message . . . . 2.)  "Markworth" switch to America I Circuit at 16.00 hours.
		12.00	DF 1133	Day's run:  Surfaced      152 nm
			W 4, overcast, Sea 3-4, Vis. good	Submerged      1 nm
		12.00		Smoke cloud and mastheads in sight.
		13.10		Dived "Action Stations".

	Sun and Moon Data 17.05.43
	Sun and Moon Data 18.05.43
	Sun and Moon Data 19.05.43

	- 10 -
		continued
		19.05.43
		14.08	SW 4, 5/10, Sea 3-4, Vis. good 10 nm	Steamer abeam.  It is the Portuguese "GAZA", course 85°, speed 10.5 knots.
		15.00		Steamer passes out of sight bearing 85°T.
		15.08		Surfaced.
		15.15		Crash dive for training.
		16.00	DF 1211	Switched America I Circuit.
		16.06	WNW 3-4, Sea 3, 4/10	Surfaced.
		20.00	DF 1137
			W 3-4, Sea 3, overcast (rain)
		24.00	DF 1157
		20.05.43
			WbyN 4, overcast, Sea 3, hazy horizon
		04.00	DF 1174
		08.00	DE 3631
			WbyN 3, overcast, Sea 3
		12.00	DE 3651	Day's run:  Surfaced      135 nm
				Submerged      1 nm
		16.00	DE 3647
			W 3, Sea 3, 3/10
		20.00	DE 3567
			WNW 3, 6/10, Sea 2-3
		24.00	DE 3587
		21.05.43	W 3, 6/10, Sea 2-3, no marine phosphorescence
		04.00	DE 3816
			SW 2, Sea 2, 3/10
		08.00	DE 3763
			WNW 1, 5/10, Sea 1, Vis. good
		12.00	DE 3791	Day's run:  Surfaced  143.5 nm.
		15.41		Crash dive for training.
		16.00	DE 3783
		16.26	SWbyW 2, 7/10, Sea 1, Vis. good	Surfaced.
		20.00	DE 3787
			SW 2, Sea 2, 4/10, Vis. good
		24.00	DE 6114
		22.05.43
			SW 2-3, 4/10, Sea 2, Vis. 8 nm, no marine phosphorescence
		04.00	DE 5358
			SWbyW 3, Sea 2, 9/10
		08.00	DE 5375

	Sun and Moon Data 19.05.43
	Sun and Moon Data 20.05.43
	Sun and Moon Data 21.05.43
	Sun and Moon Data 22.05.43

	- 11 -
		continued
		22.05.43
		12.00	DE 5522	Day's run:  Surfaced     169.5 nm
			SW 2-3, 6/10, Sea 2, Vis. good	Submerged        1 nm
		16.00	DE 5542
			SW 2, 5/10, Sea 2, Vis. very good
		20.00	DE 5465
		21.30		Crash dive for training.
		22.15		Surfaced.
		23.01		Crash dive for training.
		23.14	SW 1, 2/10, Sea 2, Vis. very good	Surfaced.
		24.00	DE 5488
		23.05.43	SW 1, 1/10, Sea 1, Vis. very good
		04.00	DE 5742
		08.00	DE 4991
		11.55	W 2-3, 2/10, Sea 3, Vis. good	Mastheads bearing 180°T.
		12.00	DE 4979	Day's run:  Surfaced     166 nm
			SSW 3, 2/10, Sea 3, Vis. very good 15 nm	Submerged   4.4 nm
		16.00	DE 8114	By plotting the steamer runs at a general speed of 16 knots.  With one diesel at HF and one at 2 x GF (exhaust temperature at 600°)  in this sea I can do 14-14.5 knots.  Falling behind.
			SW 2-3, 2/10, Sea 2, Vis. good
		18.11		Chase abandoned, in 2 hours the steamer passes out of sight.
		20.00	DE 8143
			SWbyS 2-3, Sea 2, 5/10
		20.37		Crash dive for training.
		21.51		Surfaced.
		24.00	DE 8171
		24.05.43
			SW 3, 2/10, Sea 2, Vis. moderate, no marine phosphorescence
		04.00	DE 7622
			SW 2, Sea 2, 1/10
		08.00	DE 7618
			SSW 2-3, Sea 1, 7/10
		12.00	DE 7568	Day's run:  Surfaced     202 nm
				Submerged     4 nm
		16.00	DE 7587	Masthead in sight.  It is a drifting unmanned lifeboat, was sunk with hand grenades
			SSW 3, 4/10, Sea 2, (mist), Vis good

	Sun and Moon Data 22.05.43
	Sun and Moon Data 23.05.43
	Sun and Moon Data 24.05.43

	- 12 -
		continued
		24.05.43
		20.00	DE 7815
			SSW 2, 3/10, Sea 2, Vis. good
		21.55		Radio Message . . . . 2.)  On 25 May at 08.00 hours "Markworth" switch to America II Circuit.
		24.00	DE 7764
			W 2, Sea 1-2, overcast
		25.05.43
			SW 2, overcast, Sea 2, Vis. bad, very dark night, no marine phosphorescence
		04.00	DE 7784
		08.00	DP 2314	Switched to America II Circuit.
		12.00	DP 2222	Day's run:  Surfaced  171 nm.
			NW 1, overcast, Sea 0, Vis. moderate, (mist) (rain)
		12.08		Crash dive for training.
		16.00	DP 2215
		18.51	EbyN 1, Sea 1, 7/10, (rain)	Surfaced.
		19.55		Radio Message  Occupy attack areas: "Wintermeyer" area to the north, "Markworth" south of the line CA 7698. "Bargsten" free to maneuver in the whole area.
				Focal point 100-meter line.  In the named sea, area apart from the situation report from "U-129", no specific information concerning traffic.  Expect stronger land-based air day and night especially after being noticed.  Radar.
		20.00	DP 2135
			NE 1, 4/10, light medium-long swells, misty
		24.00	DP 2115
		26.05.43
		04.00	DP 1325
			NE 2, overcast, long low swells, Vis. bad misty, medium marine phosphorescence
		08.00	DP 1235
			SW 1, Sea 0, overcast, (rain), mist, Vis. bad
		12.00	DP 1215	Day's run:  Surfaced       136.5 nm
			SWbyW 1, 8/10, slight swell, strong marine phosphorescence	Submerged     18.5 nm
		12.45		Crash dive for training.
		16.00	DP 1136
		18.43		Surfaced.
		20.00	DP 1126
			Wind calm, 3/10, Sea flat, misty, clear horizon

	Sun and Moon Data 24.05.43
	Sun and Moon Data 25.05.43
	Sun and Moon Data 26.05.43

	- 13 -
		continued
		26.05.43
		24.00	DO 3336
		27.05.43
		04.00	DO 3316
			Wind calm, 5/10, misty, Vis. bad, (fog), medium marine phosphorescence
		08.00	DO 3226
		11.25		Crash dive for training.
		12.00	DO 3136	Day's run:  Surfaced      131.5 nm
				Submerged    17.5 nm
		16.00	DO 3134
		16.25	Wind calm, 1/10, Sea like a duck pond, misty, Vis. moderate 5 nm	Surfaced.
		20.00	DO 3115
		24.00	DD 8775
		28.05.43	NW 1, 3/10, Sea 0, misty, Vis. bad, light marine phosphorescence
		04.00	DD 7986
			WNW 1, 5/10, Sea 0, strong marine phosphorescence, Vis. bad, misty, indistinct horizon
		08.00	DD 7975
			Heavy mist, Vis. very poor, W 1, Sea 0, 4/10
		11.16		Crash dive for training
		12.00	DD 7894	Day's run:  Surfaced      150.5 nm
				Submerged    15.5 nm
		16.00	DD 7886
		16.10	SW 1, Sea 1, 3/10, Vis. good	Surfaced.
		20.00	DD 7872
		24.00	DD 7783
			SW 1, 9/10, Sea 1, Vis. good
		29.05.43
		04.00	DD 7772
			SW 1, 1/10, Sea 1, Vis. moderate, misty
		08.00	DC 9991
		11.43	SW 1, Sea 1, 2/10, Vis. moderate, light mist	Crash dive for training.
		12.00	DC 9943	Day's run:  Surfaced      120.5 nm
				Submerged    40.5 nm
		16.00	DC 9918

	Sun and Moon Data 26.05.43
	Sun and Moon Data 27.05.43
	Sun and Moon Data 28.05.43
	Sun and Moon Data 29.05.43

	- 14 -
		continued
		29.05.43
		18.00		Surfaced.
		20.00	DC 9835
			SW 3, Sea 2, 6/10, Vis. good
		24.00	DC 9554
			WSW 3-4, 3/10, Sea 2-3, Vis. good
		30.05.43
		04.00	DC 9436
			SW 3, overcast, Sea 2, Vis. good, light marine phosphorescence
		08.00	DC 9189
			NW 3, Sea 2-3, 7/10, (rain)
		12.00	DC 9187	Day's run:  Surfaced      134.5 nm
			NNW 3, Sea 2, overcast, Vis. good	Submerged       18 nm
		16.00	DC 8393
			N 2, Sea 1, 2/10, Vis. good, misty
		17.50		Crash dive for training.
		19.05		Surfaced.
		19.31		Crash dive for training.
		20.00	DC 8364
		21.20		Surfaced.
		24.00	DC 8327
			W 1, 5/10, Sea 0, Vis. good
		31.05.43
		04.00	DC 5977
			N 1, overcast, Sea 1, Vis. bad, misty, no marine phosphorescence
		08.00	DC 5883
			Wind calm, Vis. moderate, heavy mist, indistinct horizon, strong marine phosphorescence
		11.02		Crash dive for training.
		12.00	DC 5846	Day's run:  Surfaced      143 nm
				Submerged     10 nm
		13.11	Vis. good	Surfaced.
		16.00	DC 5817
			WSW 1, 5/10, Sea 1, Vis. 12-14 nm
		20.00	DC 5731
			W 1, Sea 1, 9/10, Vis. good
		24.00	DC 5448
			SSE 1, 1/10, Sea 1, Vis. medium, indistinct horizon

	Sun and Moon Data 29.05.43
	Sun and Moon Data 30.05.43
	Sun and Moon Data 31.05.43

	- 15 -
		01.06.43
		04.00	DC 4638
		08.00	DC 4616
			W 1, blue sky, flat sea, Vis. moderate
		11.41		Crash dive for training.
		12.00	DC 4522	Day's run:  Surfaced      152.5 nm
			SW 1, blue sky, Sea 1	Submerged         9 nm
		16.00	DC 4521
		20.00	DC 4513
		20.20		Surfaced.
		20.53		Crash dive for training.
		24.00	DC 4277
		02.06.43
		01.59	W 2, blue sky, Sea 1, Vis. moderate, no marine phosphorescence	Surfaced.
		04.00	DC 4182
			SSW 5, Sea 2, blue sky
		08.00	DC 4171
		11.35	WSW 3, Sea 2-3, 7/10	Dived.
		12.00	DB 6368	Day's run:  Surfaced      75.5 nm
				Submerged  28.5 nm
		16.00	DB 6367
		20.00	DB 6358
		24.00	DB 6357
		03.05.43
		02.37	SW 3, blue sky, Sea 2-3, no marine phosphorescence	Surfaced.
		04.00	DB 6323
		07.46		Crash dive for radar detection!  140 cm, 2 x 5 seconds duration, 5 second pause.
		08.00	DB 6319
		10.43	SW 4, Sea 3, blue sky	Surfaced.
		11.38		Dived.
		12.00	DB 6343	Day's run:  Surfaced      32.5 nm
				Submerged     36 nm
		16.00	DB 6348
		20.00	DB 6371
		24.00	DB 6374
		04.06.43
			SW 3, blue sky, Sea 2, Vis. good, no marine phosphorescence
		02.44		Surfaced.
		04.00	DB 6651
			WSW 2-3, Sea 2, overcast, Vis. good
		08.00	DB 6641
			Vis. good
		11.42		Dived.
		12.00	DB 6534	Day's run:  Surfaced      51.5 nm
			SW 2-3, blue sky, Sea 2	Submerged     30 nm
		16.00	DB 6522
		20.00	DB 6521
		24.00	DB 6513

	Sun and Moon Data 01.06.43
	Sun and Moon Data 02.06.43
	Sun and Moon Data 03.06.43
	Sun and Moon Data 04.06.43

	- 16 -
		05.06.43
		02.45	Vis. very good, starlit	Surfaced.
		02.59		Crash dive for radar detection 150 cm, Volume 2-3 and First growing higher and lower, afterwards continuous tone.  No indication on magic eye.
		04.00	DB 6268
		05.05		Surfaced.
		08.00	DB 6297
			W 3, blue sky, Sea 2, Vis. good, no marine phosphorescence
		11.40		Dived.
		12.00	DB 6534	Day's run:  Surfaced        26 nm
				Submerged  48.5 nm
		16.00	DB 6537
		20.00	DB 6529
		24.00	DB 6553
		06.06.43
			SW 1, 3/10, Sea 1, misty, Vis. bad
		02.46		Surfaced.
		03.18		Crash dive for radar detection.
		04.00	DB 6553
		05.10	Vis. bad	Surfaced.
		05.24		Radio Message  "Markworth" . . . . Report situation or position as soon as you are detected.  U-boat sighting report from naval square DM 26.  Attention is called to the Kommandant's Handbook Paragraph 354.
		08.00	DB 6554
			SW 1, blue sky, Sea 1, Vis. moderate, strong marine phosphorescence
		11.37		Dived.
		12.00	DB 6439	Day's run:  Surfaced      43.5 nm
				Submerged     18 nm
		16.00	DB 6439
		20.00	DB 6461
		24.00	DB 6466
		07.06.43
		02.50	Wind calm, blue sky, misty, Vis. moderate, no marine phosphorescence	Surfaced.
		04.00	DB 6544
			SE 1, blue sky, Sea 1, light marine phosphorescence, Vis. good
		08.00	DB 6546
		11.38	S 1-2, blue sky, Sea 1, Vis. moderate, thunderstorms, strong marine phosphorescence	Dived.
		12.00	DB 6516	Day's run:  Surfaced      52 nm
				Submerged  16 nm
		16.00	DB 6518
		20.00	DB 6518
		24.00	DB 6542

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

	Sun and Moon Data 05.06.43
	Sun and Moon Data 06.06.43
	Sun and Moon Data 07.06.43

	- 17 -
		08.06.43
		02.54	S 2, 5/10, Sea 1, Vis. good	Surfaced.
		04.00	DB 6291
			SSW 1, overcast, no marine phosphorescence, summer lightening
		08.00	DB 6522
		11.35		Dived
		12.00	DB 6288	Day's run:  Surfaced      30.5 nm
				Submerged     36 nm
		16.00	DB 6288
		16.20 -
		16.30		At periscope depth, afterwards quickly to depth A +20 meters for inbound aircraft type "Catalina".
		20.00	DB 6286
		24.00	DB 6294
		09.06.43	SSW 1, 2/10, Sea 1, Vis. good, summer lightening
		02.45		Surfaced.
		04.00	DB 6291
		08.00	DB 6522
		12.00	DB 6276	Day's run:  Surfaced      43.5 nm
			SSW 2, 5/10, Sea 2, Vis. good	Submerged     16 nm
		15.07		Sound bearing 20°T.
		16.00	DB 6282
		16.12		Aircraft.
		16.15		To Action Stations!
		16.39		Tanker bearing 355°T, target angle left 80°, 10 nm range.
		17.32		Second tanker bearing 165°T, target angle left 50°, 10 nm range.  Both tankers protected by airships and Catalina's.  Attempt to reach an advantageous position in relation to the second tanker submerged.  To reach the first is hopeless.  At the limit of range a 3 fan on the tanker which zigs away shortly after the shot.
				General course 20°, torpedo course 85.5°, target speed 15 knots, range = 5000 meters, target angle 82° bow left.
				Chasing after is hopeless for me, because both are making general speed of 15 knots.  With my diesel I can make only 13-14 knots and because of the air must go around far off.  Because up to now we are unnoticed, pursuit broken off.
		17.50		Secured from Action Stations
		20.00	DB 6259
		20.21		Semi-rigid airship sighted bearing 290°T, course 25°.
		20.50	SW 2, 2/10, Sea 3, Vis. good	Airship out of sight.
		24.00	DB 6267

	Sun and Moon Data 08.06.43
	Sun and Moon Data 09.06.43

	- 18 -
		10.06.43
		02.59	S 2, Sea 2, 2/10, Vis. good, summer lightening, no marine phosphorescence	Surfaced.
		04.00	DB 6268
			SW 4, Sea 3, 5/10, heavy summer lightening
		08.00	DB 6283
			Vis. worsening, thunderstorms, NW 4, Sea 3, overcast
		12.00	DB 6285	Day's run:  Surfaced        47 nm
				Submerged  38.5 nm
		16.00	DB 6283
		16.30		Flying boat "Catalina" course 200°, bearing 60°T.
		17.10		Flying boat bearing 240°T.
		17.11		2 flying boats bearing 60°T, to depth A -10 meters.
		18.14		Periscope depth.
		20.00	DB 6283
		20.02		Masthead bearing 200°T.
		20.18		Tanker bearing 199°T on general course 20°, 15 knots.
		20.58	DB 6294	Single shots from tubes V and VI.
				Target speed 13 knots, target angle 90°, range = 500 meters, depth = 8 and 5 meters.
				After 28 seconds hit amidships.  Tanker gives off many secondary detonations, from the location of the hit from the front to the stern running upward and afterwards collapsing.  Burns immediately about the entire length with the exception of the forecastle.   2nd hit in the stern, this breaks off and sinks immediately.  Foredeck capsizes, afterwards only a sea of flames.  Tanker was over 150 meters in length, estimated "New construction 10000 GRT" had set international identification signal Lucie 74.
		24.00	DB 6294
		11.06.43	SSE 2, 8/10, Sea 2, Vis. good, summer lightening, moonlit, no marine phosphorescence
		01.30		Foreship sunk.
		02.53		Surfaced.
		04.00	DB 6377
			Light marine phosphorescence, WbyS 1, Sea 1-2, 4/10, Vis. moderate, heavy summer lightening
		08.00	DB 6234
		11.35	WSW 1, Sea 1, 1/10	Dived.
		12.00	DB 6513	Day's run:  Surfaced     55.5 nm
				Submerged     28 nm
		13.43		Sound bearing.
		13.45		To Action Stations.
		13.48		Steamer bearing 132°T, airship escort, medium size passenger steamer, speed 15 knots, target angle 90°.
		14.05		To A +40 meters, secured from Action Stations.
		16.00	DB 6287

	Sun and Moon Data 10.06.43
	Sun and Moon Data 11.06.43

	- 19 -
		continued
		11.06.43
		19.17		Quickly to A +0 meters for 2 fast land-based aircraft.
		20.00	DB 6285
		22.06		Quickly to A -20 meters for 2 fast aircraft.
		24.00	DB 6294
		12.06.43
			Vis. good, moonshine, no marine phosphorescence
		02.55	SE 1, 6/10, Sea 2	Surfaced
		04.00	DB 6292
		08.00	DB 6523
			ESE 2, Sea 2, 5/10, Vis. good, heavy summer lightening and marine phosphorescence
		11.14		White light bearing 280°, airship.
		11.24		Dived.
		12.00	DB 6285	Day's run:  Surfaced     50.5 nm
				Submerged 29.5 nm
		12.30		Airships bearing 210°T and 70°T.
		15.40		Airship bearing 20°T course 180°.
		16.00	DB 6294
		16.08		Flying boat bearing 220°T, type "Martin".
		16.17		Flying boat out of sight bearing 310°T.
		16.29		Flying boat in approach bearing 240°T very low, quickly to depth A -10 meters.
		20.00	DB 6293
		20.17		Flying boat bearing 291°T to depth A -35 meters.
		21.02		Flying boat bearing 36.5°T to depth A -35 meters.
		24.00	DB 6372
		13.06.43
			EbyS 3-4, 4/10, Sea 3, Vis. good, moonshine
		01.00		Airship bearing 339°T.
		01.36		Radio Message . . . . "Markworth" report situation or if no insights position.
		02.50		Surfaced.
		04.00	DB 6381
		08.00	DB 6374
			SE 2, 3/10, Sea 1, Vis. good
		12.00	DB 6292	Day's run:  Surfaced     64 nm
			Vis. medium, moonshine, light marine phosphorescence	Submerged  15 nm
		16.00	DB 6269
		17.22		Flying boat bearing 270°T SE course.
		20.00	DB 6347
		24.00	DB 6344
		14.06.43
			SEbyE 2, 3/10, Sea 1, Vis. good, moonshine
		02.57		Surfaced.
		04.00	DB 6348

	Sun and Moon Data 11.06.43
	Sun and Moon Data 12.06.43
	Sun and Moon Data 13.06.43
	Sun and Moon Data 14.06.43

	- 20 -
		continued
		14.06.43	SSW 1, 3/10, Sea 1, Vis. good
		08.00	DB 6291
			ESE 1, Sea 1, 1/10, Vis. good
		12.00	DB 6291	Day's run:  Surfaced     69.5 nm
				Submerged    46 nm
		16.00	DB 6292
		19.59		Airship bearing 90°T.
		20.00	DB 6269
		22.45		Airship out of sight.
		23.25		Airship bearing 65°T, NE course.
		24.00	DB 6344
		15.06.43
		00.20	E 1, 1/10, Vis. good, no marine phosphorescence	Airship out of sight bearing 145°T.
		02.57		Surfaced.
		04.00	DB 6348
			Vis. medium, misty horizon, bright moonshine, no marine phosphorescence
		08.00	DB 6264
		11.26	SSE 1, Sea 0, 9/10, Vis. moderate, summer lightening	Dived.
		12.00	DB 6255	Day's run:  Surfaced      69 nm
				Submerged   40 nm
		13.47		Airship bearing 229°T.
		15.00		3 fighter bombers 220°T, very high.
		16.00	DB 6255
		17.07		Airship on the horizon bearing 315°T bow right target angle 80° course 55°, turns away and again passes from sight.
		20.00	DB 6256
		24.00	DB 6264
		16.06.43
		02.31		Airship bearing 272°T.
		04.00	DB 6264
		04.04	SW 1, rough Sea, overcast, Vis. good, no marine phosphorescence	Radio Message 1.)  23 May freighter 120°, 16 knots, hunted in DE 81.
				2.) 9 June miss on 2 large tankers.
		08.00	DB 6373	10 June newly constructed tanker sunk with MZ, nothing since then.  All on course 20°, 15 knots, air escort DB 6280.
				3.)  Continuous air, airship, flying boat, fighter bombers along the 200-meter line.  Enemy radar detection up to now only by night route DB 30.
				4.) 10 x 8 torpedoes, 130 cbm.  High pressure with thunderstorms going to the east during the full moon.
				"Markworth"
		08.43		Radio Message . . . . 4.) Markworth report situation or position, if detected.  Several sighting reports are from your operations area.
		11.30	SW 1, Sea 1, 1/10, Vis. good	Dived.

	Sun and Moon Data 14.06.43
	Sun and Moon Data 15.06.43
	Sun and Moon Data 16.06.43

	- 21 -
		continued
		16.06.43
		12.00	DB 6397	Day's run:  Surfaced      67.5 nm
				Submerged     27 nm
		12.34		Masthead in sight bearing 307°T.
		12.55		To Action Stations!
		13.10		It is a USA Coast Guard cutter type "CAMPBELL".
		14.02		Masthead out of sight
		16.00	DB 6623
		17.31		Flying boat bearing 120°T, altitude 100 meters, to depth A -20 meters.
		20.00	DB 6631
		20.23		Aircraft bearing 180°T, 5000 meters distant.
		24.00	DB 6632
		17.06.43
			SW 1, blue sky, Sea 0, Vis. very good, moonshine
		02.50		Surfaced.
		04.00	DC 4176
		05.45		Crash dive for training.
		05.55	SE 3, blue sky, Sea 3, Vis. good, bright moonshine, no marine phosphorescence
		08.00	DC 4432
		11.27		Dived.
		12.00	DC 4543	Day's run:  Surfaced      71 nm
			SW 2-3, Sea 2, overcast, Vis. good	Submerged  24nm
		16.00	DC 4551
		20.00	DC 4551
		24.00	DC 4555
		18.06.43
		02.24	SSE 2, 5/10, Sea 2, Vis. good, moonshine, marine phosphorescence	Surfaced.
		04.00	DC 4569
			SW 2, 3/10, Sea 2
		08.00	DC 4682
		11.49		Crash dive for training.
		12.00	DC 5471	Day's run:  Surfaced      101.5 nm
			SbyW 2, 3/10, Sea 2, light summer lightening, no marine phosphorescence	Submerged       23 nm
		14.13		Surfaced.
		15.24		Crash dive for training.
		16.00	DC 5473
			SSE 1, 4/10, Sea 1, Vis. good
		20.00	DC 5481
		20.07		Surfaced.
		24.00	DC 5493
			NW 2, 2/10, Sea 1, Vis. good, moonshine

	Sun and Moon Data 16.06.43
	Sun and Moon Data 17.06.43
	Sun and Moon Data 18.06.43

	- 22 -
		19.06.43
		04.00	DC 5573
		08.00	DC 5556
		11.42		Crash dive for training.
		12.00	DC 5536	Day's run:  Surfaced      126.5 nm
			SE 1, 4/10, Sea 1, Vis. good, bright moonshine, summer lightening, no marine phosphorescence	Submerged     14.5 nm
		13.25		Surfaced.
		16.00	DC 5538
			WSW 2-3, 6/10, Sea 2, Vis. good
		20.00	DC 5537
		22.40		Surfaced.
		24.00	DC 5552
			SW 2-3, Sea 1-2, 6/10, Vis. good
		20.06.43
		04.00	DC 5493
			SW 2, 4/10, Sea 1, Vis. good, no marine phosphorescence
		08.00	DC 5486
		10.12	SbyW 2, Sea 1, 3/10	Crash dive for training, radar detection.
		10.23		Surfaced.
		12.00	DC 5471	Day's run:  Surfaced      112.5 nm
			EbyS 2, Sea 1, 5/10, Vis. good, heavy summer lightening, no marine phosphorescence	Submerged     16.5 nm
		16.00	DC 5456
			SW 1, Sea 0, 7/10
		20.00	DC 5444
			EbyS 1, Sea 0, 6/10
		24.00	DC 5428
		21.06.43
			SbyE 1, 4/10, Sea 1, misty, Vis. bad, summer lightening, no marine phosphorescence
		04.00	DC 5451
			S 1-2, Sea 1, 7/10, Vis. good, moonshine
		08.00	DC 5438
		11.49		Crash dive for training.
		12.00	DC 5551	Day's run:  Surfaced      182.5 nm
			EbyS 1, 5/10, Sea flat, Vis. good, moonshine, heavy summer lightening, no marine phosphorescence	Submerged         2 nm

	Sun and Moon Data 19.06.43
	Sun and Moon Data 20.06.43
	Sun and Moon Data 21.06.43

	- 23 -
		continued
		21.06.43
		14.04		Surfaced.
		16.00	DC 5561
			SE 1, Sea 0, 5/10
		20.00	DC 5567
		24.00	DC 5821
			SSE 1, 9/10, Sea 0, Vis. good
		22.06.43
		04.00	DC 5835
			SE 1, Sea 0, 6/10, Vis. good, no marine phosphorescence
		08.00	DC 5588
		11.44		Crash dive for training.
		12.00	DC 5588	Day's run:  Surfaced      173 nm
			SE 1, drizzle, 9/10, Sea 0, Vis. bad, summer lightening, (thunderstorms)	Submerged      5 nm
		16.00	DC 5589
		17.15		Surfaced.
		20.00	DC 5677
			EbyS 2, 3/10, Sea 1, 3/10
		24.00	DC 5586
			SbyE 2, 4/10, Sea 1, Vis. very good
		23.06.43
			SbyE 2, 3/10, Sea 1, Vis. very good, light marine phosphorescence
		04.00	DC 5581
		08.00	DC 5547
		09.57	S 3, overcast (rain), Sea 2, Vis. very poor	Dived.
		10.45		Surfaced.
		12.00	DC 5468	Day's run:  Surfaced      138 nm
			SE 3, 5/10, Sea 2, Vis. good, moonshine, light summer lightening	Submerged      9 nm
		16.00	DC 5554
		20.00	DC 5466
			SE 3-4, Sea 3, 8/10, Vis. very good
		24.00	DC 5451
		24.06.43
			S 2-3, Sea 3, 3/10, Vis. changing, no marine phosphorescence
		04.00	DC 4664
		08.00	DC 4654
		11.26	Moonshine, marine phosphorescence	Dived.

	Sun and Moon Data 21.06.43
	Sun and Moon Data 22.06.43
	Sun and Moon Data 23.06.43
	Sun and Moon Data 24.06.43

	- 24 -
		continued
		24.06.43
		12.00	DC 4569	Day's run:  Surfaced      182 nm
			SbyE 3, 8/10, Sea 3, Vis. good, moonshine, marine phosphorescence	Submerged      2 nm
		16.00	DC 4568
		20.00	DC 4591
		24.00	DC 4583
		25.06.43
			SE 4-5, Sea 4, 6/10, Vis. good, no marine phosphorescence
		02.32		Surfaced.
		04.00	DC 4548
		08.00	DC 4468
			SE 4, Sea 4, overcast (rain), Vis. moderate to bad, light summer lightening, strong marine phosphorescence
		09.25		Crash dive for radar detection.
		12.00	DC 4456	Day's run:  Surfaced     40 nm
				Submerged  29 nm
		16.00	DC 4458
		20.00	DC 4458
		24.00	DC 4481
			SE 4-5, Sea 4, overcast (rain), Vis. medium
		26.06.43
		00.20		Radio Message  1.)  Wintermeyer and Markworth free to maneuver in entire coastal area.
				2.) . . . . . .
		02.54		Surfaced.
			SE 3-4, Sea 3, 8/10, Vis. moderate, light summer lightening, strong marine phosphorescence
		04.00	DC 4481
			Vis. changing
		08.00	DC 4471
		11.25		Dived.
		12.00	DB 6694	Day's run:  Surfaced     51.5 nm
			SSE 4-5, Sea 4, overcast lightening, Vis. moderate, marine phosphorescence	Submerged     27 nm
		16.00	DB 6689
		20.00	DB 6688
		24.00	DB 6923
			S 4, Sea 3-4, 7/10, Vis. moderate, medium marine phosphorescence

	Sun and Moon Data 24.06.43
	Sun and Moon Data 25.06.43
	Sun and Moon Data 26.06.43

	- 25 -
		27.06.43
		02.50		Surfaced.
		04.00	DC 4474
			SSE 4, Sea 4, 8/10, Vis. medium, in squalls SSE 6, Sea 5-6, Vis. very poor (under 2 nm), strong marine phosphorescence
		06.15		Radio Message  As attack areas occupy. . . .
				5.)  "Markworth". . . . with coming new moon period again go close under the coast.
		08.00	DC 4721
			SE 3-4, Sea 3-4, 8/10, Vis. moderate, strong marine phosphorescence
		11.24		Dived.
		12.00	DC 4716	Day's run:  Surfaced        50 nm
				Submerged  29.5 nm
		16.00	DC 4715
		20.00	DC 4715
		24.00	DC 4714
		28.06.43
			S 2-3, Sea 2, 6/10, Vis. good, overcast, clear horizon, no marine phosphorescence
		02.52		Surfaced.
		04.00	DB 6931
		08.00	DB 6913
			SSW 2-3, Sea 2, 3/10, Vis. good, strong marine phosphorescence
		11.34		Dived.
		12.00	DB 6599	Day's run:  Surfaced       48 nm
				Submerged  24.5 nm
		16.00	DB 6599
		20.00	DB 6832
		22.55		2 flying boats, type "Consolidated PB 2Y" bearing 210°T 10000 meters distant, course 70°.
		22.58		Flying boats out of sight bearing 100°T.
		24.00	DB 6834
		29.06.43
		03.06		Surfaced.
			EbyS 4-5, Sea 3, 3/10, Vis. good, strong marine phosphorescence
		04.00	DB 6852
		08.00	DB 6815
		11.31		Dived.
		12.00	DB 6217	Day's run:  Surfaced      51 nm
			SSW 3, Sea 2, 3/10, Vis. good, summer lightening, strong marine phosphorescence	Submerged  27 nm
		15.31 -		Flying boat to starboard 5000 meter distant, course 100°.
		16.00	DB 6516

	Sun and Moon Data 27.06.43
	Sun and Moon Data 28.06.43
	Sun and Moon Data 29.06.43

	- 26 -
		continued
		29.06.43
		18.10		Airship bearing 0°, course 200-210°.
		19.14		Airship out of sight bearing 265°.
		20.00	DB 6283
		24.00	DB 6294
		30.6.43
			SW 3-4, Sea 3, 2/10, Vis. good, summer lightening
		03.15		Surfaced.
		04.00	DB 6371
			Light marine phosphorescence
		08.00	DB 6292
		11.30		Dived.
		12.00	DB 6282	Day's run:  Surfaced      70.5 nm
			SSW 3, Sea 2-3, 7/10, lightening, Vis. good, marine phosphorescence	Submerged     24 nm
		12.45		1st airship bearing 250°T, course 90°.
		13.32		2nd airship bearing 30.7°T, course 40-50°.
		15.59		3rd airship bearing 72.5°T, course 220°.
		16.00	DB 6259
		16.42		3rd airship out of sight bearing 159°T.
		17.54		Flying boat bearing 162°T, course 270°, type "Consolidated PB Y 1".
		17.58		Flying boat turns to approach went to depth A -20 meters.
		20.00	DB 6266
		24.00	DB 6342
		01.07.43
			S 2-3, Sea 2, 5/10, lightening, Vis. good, clear horizon
		03.00		Surfaced.
		04.00	DB 6351
		08.00	DB 6371
			Marine phosphorescence
		10.22 -
		10.27		Oil slick passed at the sinking location of my tanker.
		11.30	S 3, Sea 2-3, 4/10, lightening, strong marine phosphorescence	Dived.
		12.00	DB 6283	Day's run:  Surfaced        65 nm
				Submerged  30.5 nm
		15.14		Airship in sight bearing 42°T, course 220°, to depth A -30 meters.
		15.58	S 2, Sea 2-3, 4/10, Vis. good	Airship bearing 175°T, course 220°.
		16.00	DB 6267
		16.38		Airship out of sight bearing 208°.
		20.00	DB 6268
		24.00	DB 6266

	Sun and Moon Data 29.06.43
	Sun and Moon Data 30.06.43
	Sun and Moon Data 01.07.43

	- 27 -
		02.07.43
		03.00	SE 2, Sea 1 8/10, lightening, Vis. good	Surfaced.
		04.00	DB 6269
			S 2, Sea 1-2, 7/10, lightening, Vis. medium to bad, medium marine phosphorescence
		05.40		Shadow bearing approximately 200°T, course 40°.  Shadow is a loaded tanker, zigzagging around course 40°.  Because despite my highest speed the tanker is comming closer and the target angle will only grow larger I decide to attack immediately.  This tanker cannot be allowed to pass. Therefore:
		06.07		1.)  Two-fan, target speed 14 knots, target angle 80°.
		06.09		2.)  Two-fan, target speed 12 knots, target angle 90°.
				With the first firing 3 shots are made due to a switch error in the conning tower Tube I      T 3
				Tube IV   T 2
				Tube II     T 2
				both T 2s run at a distance of 10 meters behind each other.  As a result the second fan is only 1 shot.  Estimated range 2000 meters.  Of course the distance was underestimated again.  Hit after 5 min 6 sec.  Range was 4700 meters. Tanker transmits on 600 meters.  Because we are only 80 nm from Charleston and the tanker is still moving decide on a coup de grâce.
				Tube VI at 1000 meters past.
				Tube V hit in the engine room.
		06.30	DB 6374	Tanker sinks by the stern and floats for a short time by the forecastle.
				Measured length of the steamer more than 150 meters (binoculars and fixed range yields 160 meters)
				Estimated target angle and speed were wrong.  At the shot the target angle was smaller and the speed higher.  The mistakes balanced themselves out and still resulted in a stern hit
		07.08		Dived.
		08.00	DB 6374
		11.58		Airship bearing 296°T.
		12.00	DB 6376	Day's run:  Surfaced     70.5 nm
			S 2, 5/10, Vis. medium	Submerged  50.5 nm
		12.55		Airship bearing 290°T, circling course.
		13.05		Flying boat bearing 290°T, course 0°.
		15.55		Airship bears 274°T.
		16.00	DB 6384
		16.40		To depth A -10 meters.
		18.00		To periscope depth.
				Airship bearing 282°T.
		20.00	DB 6386
		21.56		Destroyer masthead in sight bearing 306°T.
		22.13		Masthead out of sight bearing 293°T.
		24.00	DB 6394

Sun and Moon Data 02.07.43

	- 28 -
		03.07.43
			SW 1, Sea 1, 8/10, mist, Vis. medium, marine phosphorescence
		02.50		Surfaced.
		04.00	DC 4174
		06.06		Radio Message delivered repeatedly, was not understood.
		08.00	DC 4423
		11.19		Dived.
		12.00	DC 4542	Day's run:  Surfaced         81 nm
			SW 2, Sea 1, 7/10, lightening, Vis. good, strong marine phosphorescence	Submerged  54.5 nm
		15.15		Flying boat bearing 254°T, course 30-40°.
		15.20		To depth A +10 meters.
		15.30		At periscope depth, flying boat out of sight.
		15.45		Flying boat bearing 30°, circling.
		15.46		To depth A -20 meters.
		16.00	DC 4543
		20.00	DC 4551
			ENE 3-4, Sea 2, 7/10
		20.44		Flying boat bearing 171°T, course 270°.
		20.46		Flying boat out of sight.
		21.40		Flying boat bearing 161.5°T, course 100°.
		23.07		Flying boat bearing 135°T out of sight.
		24.00	DC 4555
		04.07.43
			NNW 2, Sea 1-2, 5/10, Vis. moderate
		02.31		Surfaced.
		04.00	DC 4596
		04.37		Radio Message again sent:
				From "Markworth" tanker sunk DB 62, 15 knots, 20°.  Air as before, low Seas, 4 x 8, 88 cbm, 20 day's provisions. Request supply.
				Missing serial number. . . . .
				Situation in DC 50.
		08.00	DC 4679
			NW 2, Sea 1, 8/10, (rain), medium marine phosphorescence
		09.33		Radio Message  To "Markworth" report situation or position.
		10.00	S 1-2, Sea 1, 8/10
		11.35		Dived.
		12.00	DC 4934	Day's run:  Surfaced     96 nm
			SSE 1-2, Sea 1, 8/10, Vis. moderate occasionally degraded in rain squalls, light marine phosphorescence	Submerged  38 nm
		13.07		Flying boat bearing 195°T, flies in circles.
		13.10		To depth A +40 meters.
		15.00		To depth A -20 meters.
		15.13		To periscope depth.
		16.00	DC 4939

	Sun and Moon Data 03.07.43
	Sun and Moon Data 04.07.43

	- 29 -
		continued
		04.07.43
		19.47		Flying boat bearing 33.5°T, course 95°.
		19.53		Flying boat out of sight.
		20.00	DC 5741
		24.00	DC 5742
		05.07.43
			SbyE 2, Sea 2, 7/10, Vis. good, light marine phosphorescence
		02.10		Surfaced.
		02.35		Begin torpedo work topside, make ready for loading.
		02.35	SbyE 2, Sea 2, 7/10, Vis. good, light marine phosphorescence	Radio Message  1.)  . . . .
				2.) "Markworth" reported provision stocks of 20 days appears very low.  If 10-14 days operations are still possible in a current attack area, fuel oil and provision supply is intended in DF 60.  If "no", return transit in accordance with provision stock and provision supply roughly in named position, report again.
		04.00	DC 5754
		08.00	DC 5765
		10.23		Torpedo loading completed.  Tubes 3 and 9 not unloaded because they were flooded.
		11.15		Work topside completed.
		11.37	SSE 1, Sea 1, 3/10, lightening, Vis. good, strong marine phosphorescence	Dived.
		12.00	DC 5756	Day's run:  Surfaced     54 nm
				Submerged  27 nm
		16.00	DC 5755
		20.00	DC 5754
		24.00	DC 5746
		06.07.43
			SE 2, Sea 2, 5/10, Vis. good
		00.05		Steamer bearing 320°T.
				To Action Stations!
				Steamer runs at 15 knots, Type "LASSIN" has undeployed torpedo nets.
				Approaching with wild zigzags.  Turns sharply towards me across the bow.  Would like to shoot, because this turn is towards me contrary to his other 5-10 zigzags about 50-60° every 1-2 minutes.  Target angle 0°, range 1000 meters.  This may be a coincidence, since I have shown the periscope only very sparsely.  Hopefully he will still zigzag away.  At 250 meters, target angle 0° dive quickly but the boat does not get under.  Negative buoyancy tank flooded.  In spite of high speed and afterwards AK.  Steamer goes exactly over my No. 1 vent valve hatch.  Forces my net deflector to the side and damages the upper deck.  The spindle bearing of the flood valve for the starboard negative buoyancy tank is damaged during the ramming, it will only close at diving depths between 5 and 40 meters.  The damage cannot be repaired.

	Sun and Moon Data 13.07.43
	Sun and Moon Data 14.07.43
	Sun and Moon Data 15.07.43

	- 30 -
		continued
		06.07.43
		01.05		To periscope depth, steamer bearing 140° on the horizon.
		01.11		Secure from Action Stations.
		01.33		Surfaced, chased after.  Again the same song.  I can only make 14-15.5 knots, the enemy runs at 15-16 knots.  I hunt several hours behind again in vain.
		04.00	DC 8127
			SE 2, Sea 2, 4-5/10, Vis. good
		06.04	SbyE 2, Sea 2, 7/10, lightening, Vis. good	Radio Message sent:  Day attack on tanker type "LASSIN" course 150°, rammed slightly.  4 x 6 x 2 out of service [torpedoes] 84 cbm.   Was loaded for 13 weeks.  Return transit 16 July.  Enemy radar detection on 26 June 140 cm horizontally polarized barely audible, very quiet tone, strong indication in the magic eye.
				"Markworth"
		08.00	DC 8111
		11.25		Dived.
		12.00		Day's run:  Surfaced      107 nm
				Submerged  25.5 nm
		16.00	DC 4956
		17.15		Aircraft bearing 195°T, course 270°.
		17.22		Aircraft bearing 228°T out of sight.
		20.00	DC 4951
		24.00	DC 4919
		07.07.43
		02.35		Surfaced.
			SSW 3, Sea 3, 6/10, Vis. good, faint moonshine
		04.00	DC 4941
		08.00	DC 4852
		11.30	SW 3-4, Sea 3, 8/10, lightening, Vis. good	Dived.
		12.00	DC 4814	Day's run:  Surfaced     78 nm
				Submerged  43 nm
		16.00	DC 4738
		20.00	DC 4738
		23.40		7-8 detonations heard, far distant.
		24.00	DC 4737
		08.07.43
		02.45		Surfaced.
			SSW 4, Sea 3, 7/10, Vis. good, weak moonshine
		04.00	DC 4751
			SSW 3, 6/10
		08.00	DB 6962
		11.37		Dived.
		12.00	DB 6919	Day's run:  Surfaced     70 nm
			SW 2, Sea 1-2, 3/10, Vis. medium-good, light marine phosphorescence	Submerged  29 nm

	Sun and Moon Data 06.07.43
	Sun and Moon Data 07.07.43
	Sun and Moon Data 08.07.43

	- 31 -
		continued
		08.07.43
		15.30		Flying boat bearing 280°T.
		16.00	DB 6942
		20.00	DB 6941
		24.00	DB 6863
		09.07.43
			SSE 2, Sea 1-2, 7/10, lightening, Vis. good, weak moonshine, marine phosphorescence
		02.55		Surfaced.
		04.00	DB 6864
		08.00	DB 6857
		09.45	S 2, Sea 1-2, 9/10, mist, Vis. medium, marine phosphorescence
		09.45		To "Markworth"
				On 5 July the Fürher awarded you the Knight's Cross.  Warmest congratulations.
				Ob.dM and B.d.U.
			EbyS 2, Sea 1, 7/10, lightening, Vis. good, strong marine phosphorescence
		11.35		Dived.
		12.00	DB 6762	Day's run:  Surfaced     60 nm
				Submerged  24 nm
		12.52		Aircraft (land-based) bearing 7°T, course 180°.
		14.30		2 aircraft bearing 20°T, course W.
		15.47		Flying boat bearing 180°T, course roughly 90°. Turned towards the boat.  Went to depth A +0 meters.
		16.00	DB 6739
		20.00	DB 6814
		24.00	DB 6678
		10.07.43
		02.59	SSE 3, Sea 2, 6/10, Vis. good, moonshine, light marine phosphorescence	Surfaced.
		03.55		Radio Message  To Kommandant "U-66" congratulations on the award of the Knight's Cross, warmest congratulations from                                         F.d.U. West
		04.00	DB 8581
			SbyE 3, Sea 2, 5/10, Vis. good, strong marine phosphorescence
		05.21		Radio Message  "Markworth" warm congratulations to you and your men.  Furthermore good fortune and happy homecoming.
				Chef 3. U.-Flottille
		08.00	DB 6585
		11.40		Dived.
		12.00	DB 6579	Day's run:  Surfaced     49 nm
				Submerged  30 nm
		15.50		Aircraft bearing 355°T, course 45°.
		16.00	DB 6549
		20.00	DB 6527
		24.00	DB 6522

	Sun and Moon Data 08.07.43
	Sun and Moon Data 09.07.43
	Sun and Moon Data 10.07.43

	- 32 -
		11.07.43
		03.03		Surfaced.
		04.00	DB 6885
			SSW 2, Sea 1, 3/10, Vis. good, later very bad due to heavy mist
		08.00	DB 6526
			Vis. changing in thunderstorms, strong marine phosphorescence, overcast, rain, thunder, lightening
		08.31		Dived.
		08.52		Surfaced.
		11.35		Dived.
		12.00	DB 6524	Day's run:  Surfaced        48 nm
			Wind calm, 6-8/10, mist, gloomy weather	Submerged  24.5 nm
		16.00	DB 6522
		20.00	DB 6523
		24.00	DB 6298
		12.07.43
		03.00	SbyE 1, 2/10, Vis. good, moonshine, marine phosphorescence	Surfaced.
		04.00	DB 6299
		08.00	DB 6612
		11.22		Dived.
			SW 1, 2/10, Vis. good, indistinct horizon, strong marine phosphorescence
		12.00	DE 6614	Day's run:  Surfaced     52.5 nm
				Submerged    24 nm
		16.00	DB 6617
		16.36		Aircraft bearing 352°, quickly to depth A +20 meters.
		20.00	DB 6618
		24.00	DB 6618
		13.07.43
			SSE 2, Sea 1, 4/10, Vis. good, moonshine, no marine phosphorescence
		02.59		Surfaced.
		04.00	DB 6619
		08.00	DB 6665
		11.30		Dived.
			S 2, Sea 1-2, 2/10, mist, Vis. good
		12.00	DC 4473	Day's run:  Surfaced     73 nm
				Submerged  25 nm
		16.00	DC 4481
		20.00	DC 4482
		22.00		Radio Message  To Kptlt. "Markworth"
				On the award of the Knight's Cross I send you and your brave crew warm congratulations.
				Raeder, Großadmiral
		24.00	DC 4486

	Sun and Moon Data 11.07.43
	Sun and Moon Data 12.07.43
	Sun and Moon Data 13.07.43

	- 33 -
		14.07.43
		02.30		Surfaced.
		04.00	DC 4492
		05.37		Crash dive for training.
		05.45		Surfaced.
		07.56		Crash dive for training.
		08.00	DC 4879	Surfaced.
		11.34		Dived.
		12.00	DC 4829	Day's run:  Surfaced     70 nm
			SSE 1-2, Sea 1, 6/10, Vis. good, moonshine, no marine phosphorescence	Submerged  24 nm
		16.00	DC 4837
		20.00	DC 4838
		24.00	DC 4862
		15.07.43
		02.19		Surfaced.
		04.00	DC 4863
		08.00	DC 4957
			SSE 1-2, Sea 1, 4/10, Vis. good, no marine phosphorescence
		11.31		Dived.
		12.00	DC 4995	Day's run:  Surfaced     76 nm
			S 1, Sea 1, 2/10, Vis. good, moonshine, no marine phosphorescence	Submerged  25 nm
		16.00	DC 4999
		20.00	DC 4999
		24.00	DC 5777
		16.07.43
		02.22		Surfaced.
		04.00	DC 8113
			SSE 2-3, Sea 2, 9/10, Vis. good, bright moonshine
		08.00	DC 8122
		11.29		Dived.
		12.00	DC 8134	Day's run:  Surfaced     52 nm
			S 2-3, Sea 2, 8/10, Vis. bad, short periods of moonshine, no marine phosphorescence	Submerged  24 nm
		16.00	DC 8126
		20.00	DC 8125
		24.00	DC 8124
		17.07.43
		02.05		Surfaced.
		04.00	DC 8122
		08.00	DC 5776
		11.31		Dived.
		12.00	DC 5746	Day's run:  Surfaced     63 nm
			SSW 2, Sea 2, 7-8/10, passing showers, mist, no marine phosphorescence, Vis. 12 nm 3 nm in passing showers	Submerged  22 nm

	Sun and Moon Data 14.07.43
	Sun and Moon Data 15.07.43
	Sun and Moon Data 16.07.43
	Sun and Moon Data 17.07.43

	- 34 -
		continued
		17.07.43
		16.00	DC 5754
		20.00	DC 5754
		24.00	DC 5746
		18.07.43
		02.00		Surfaced.
			SbyW 2, Sea 1-2, 2/10, Vis. good, no marine phosphorescence
		04.00	DC 5746
		08.00	DC 5783
			SSE 2, Sea 2, 3/10
		11.44		Crash dive for training.
		12.00	DC 8122	Day's run:  Surfaced     53 nm
			SSW 1-2, Sea 1, 2/10, Vis. good, moonshine	Submerged  23 nm
		16.00	DC 8124
		20.00	DC 8121
		24.00	DC 5787
		19.07.43
		02.25	SW 2, Sea 1, 5/10, Vis. good, no marine phosphorescence	Surfaced.
		04.00	DC 5757
		08.00	DC 5767
			SbyW 3-4, W 2, Sea 1, 1/10, Vis. good, bright moonshine
		11.39		Crash dive for training.
		12.00	DC 5782	Day's run:  Surfaced     54 nm
				Submerged  22 nm
		16.00	DC 5785
		20.00	DC 5768
		24.00	DC 8122
		20.07.43
		01.52		Surfaced.
		03.19		Radio Message sent:   Nothing from DA 67 to 62, only medium east-west sea air.  Missing Serial Numbers . . . . . 65 cbm, return transit DB 73 all naval squares.  Request Metox, because sensitivity reduced after onboard repair, high pressure weather.
				Markworth
		04.00	DC 8126
			S 2-3, Sea 2, 7/10, (rain)
		08.00	DC 8241
		11.21		Dived.
		12.00	DC 8273	Day's run:  Surfaced     85 nm
			SSW 3, Sea 2, 6/10, Vis. good, no marine phosphorescence	Submerged  22 nm
		16.00	DC 8284
		20.00	DC 8288
		24.00	DC 8289

	Sun and Moon Data 17.07.43
	Sun and Moon Data 18.07.43
	Sun and Moon Data 19.07.43
	Sun and Moon Data 20.07.43

	- 35 -
		21.07.43
		01.51		Surfaced.
		04.00	DC 8642
		04.13	SSE 2-3, Sea 2, 5/10, lighting, Vis. medium	Radio Message "Markworth" after supply return transit to Kiel is planned.
		06.02		Radio Message  "Markworth" report weather during the night of 21 July.
		08.00	DC 8691
		12.00	DC 9714	Day's run:  Surfaced     106 nm
			SSE 2-3, Sea 2, 4/10, lighting, Vis. good	Submerged   26 nm
		16.00	DC 9718
		20.00	DC 9719
		20.50		Surfaced.
		24.00	DC 9756
			SbyE 1-2, Sea 1, 5/10, Vis. good
		22.07.43
		04.00	DC 9878	Masts in sight to port, a US tanker on general course 170°. Maneuvering ahead at AK.
			SbyE 1, Sea 1, 5/10, Vis. good
		08.00	DN 3397
			SbyE 1, Sea 0-1, 6/10, Vis. good, bright moonlight, moon occasionally blocked by clouds, no marine phosphorescence
		08.50	SbyE 1, Sea 0, 5/10, Vis. good	To Action Stations!
		08.54		Dived.
		09.16		Fan from tubes I, III, II
		09.19		1.  Hit                    target speed = 15.5 knots
		09.20		2.  Hit                    target angle  = 73° bow right
		09.25		Surfaced.               range           = 2000 meters
				depth          = 3 meters
				Effect not observed because the boat dipped under again.
				New maneuver ahead, last chance to approach the tanker in twilight, otherwise I must let it pass.
		11.16		Fan from tubes I, III, IV    target speed = 9
				target angle  = 75° bow right
				range           = 3000 meters
				Enemy sights bubbles track and turns away.  After discovering the boat the enemy shoots with artillery (15) cm and anti-aircraft weapons
		11.23		Dived.
		11.50		"Secure from Action Stations!"
				Tanker passes out of sight with increasing list.
				Chasing after is useless, because the seas are increasing and the starboard diesel can only run at HF and because the battery is empty because of use of the E-motor to supplement the diesels during the night.

	Sun and Moon Data 21.07.43
	Sun and Moon Data 22.07.43

	- 36 -
		continued
		22.07.43
		12.00	DN 3692	Day's run:  Surfaced     159 nm
			SSE 2, Sea 1, 3/10, Vis. very good, no marine phosphorescence	Submerged   17 nm
		16.00	DN 3692
		20.00	DN 3668
		24.00	DN 3665
		23.07.43
		00.57	E 1-2, Sea 1, 3/10, Vis. good, moderate marine phosphorescence	Surfaced.
		02.17		Radio Message sent:  US tanker, 16 knots, course 170°, hunted to DN 36.  1 approach 2 hits.  Twilight miss, wild artillery shooting.  Escaped with increasing list.  2 x 2 x 2 out of service [torpedoes], 56 cbm, SE 2, Sea 2, 19 mb, 5/10, Vis. good.
				"Markworth"
		04.00	DO 1414
		08.00	DO 1433
			SEbyE 2-3, Sea 2, 6/10, Vis. good, moonshine
		11.58		Crash dive for training.
		12.00	DO 1523	Day's run:  Surfaced     116 nm
				Submerged   20 nm
		15.23		Surfaced.
		16.00	DO 1523
			SE 2-3, Sea 1, swells, 6/10 (rain), Vis. moderate
		16.59		Crash dive for training.
		19.33		Surfaced.
		20.00	DO 1621
		22.00		Crash dive for training.
		24.00	DO 1397
		24.07.43
		00.43	SSE 2-3, Sea 2, 5/10, lightening, Vis. medium, no marine phosphorescence	Surfaced.
				Transferred torpedoes from the upper deck containers except for the two damaged torpedoes.
		04.00	DO 1633
		07.25		Torpedo transfer completed.
		08.00	DO 1633
		12.00	DO 2198	Day's run:  Surfaced        113 nm
			SEbyE 2, Sea 1, 5/10, lightening, Vis. good occasionally bad in rain clouds, light marine phosphorescence	Submerged   20.5 nm
		12.13		Crash dive for training.
		16.00	DO 2277
		20.00	DO 2279
		20.35		Surfaced.
		24.00	DO 2296
			E 2, Sea 1-2, 6/10, Vis. very good

	Sun and Moon Data 22.07.43
	Sun and Moon Data 23.07.43
	Sun and Moon Data 24.07.43

	- 37 -
		25.07.43
		01.16		Crash dive for training.
		01.18		Surfaced.
		04.00	DO 2387
		08.00	DO 2386
		12.00	DO 3197	Day's run:  Surfaced     112 nm
			SEbyE 2, Sea 2, 3/10, lightening, Vis. good	Submerged   24 nm
		16.00	DO 3198
		20.00	DO 3276
		24.00	DO 3295
		26.07.43
			E 2, Sea 1, 2/10, lightening, Vis. good, 1024 mb, 27°
		04.00	DO 3393
		08.00	DP 1138
		12.00	DP 1244	Day's run:  Surfaced 152 nm.
			EbyN 2, Sea 1-2, 4/10, 1024 mb, Vis. good
		16.00	DP 1236
		20.00	DP 1342
		24.00	DP 1361
		27.07.43
		04.00	DP 2146
		08.00	DP 2165
			EbyN 2, Sea 1-2, 5/10, Vis. good, 1022 mb
		12.00	DP 2254	Day's run:  Surfaced 168 nm.
		13.01		Crash dive for training.
		14.06		Surfaced.
		16.00	DP 2266
			E 2, Sea 1, 3-6/10, 1022 mb, Vis. very good
		16.32		Mastheads bearing 115°T, general course 305°, speed 16, type C 3.
		20.00	DP 2235
		20.30	EbyN 2, Sea 1, 4-6/10, Vis. good, 1022 mb	Radio Message . . . . 3.) "Markworth" proceed via naval square DE 50.  Supply intended from "Neumann" approximately in this area.
				4.)  Neumann make for named square.
		24.00	DD 9942	Steamer hunted until darkness.
		28.07.43
			EbyN 2, Sea 1, 4/10, 1023 mb, Vis. good, here and there blocked by rain clouds.
		01.33		Steamer is lost from sight behind rain clouds in twilight.
		04.00	DD 9925
		08.00	DE 7714

	Sun and Moon Data 25.07.43
	Sun and Moon Data 26.07.43
	Sun and Moon Data 27.07.43
	Sun and Moon Data 28.07.43

	- 38 -
		continued
		28.07.43
		12.00	DE 7728	Day's run:  Surfaced     223.5 nm
			SEbyE 2, Sea 1, 2/10, Vis. good, 1022 mb	Submerged         9 nm
		16.00	DE 7739
		20.00	DE 7579
		24.00	DE 7559
		29.07.43
			SE 1, Sea 0, 3/10, lightening, Vis. good, strong marine phosphorescence
		04.00	DE 7617
			Vis. bad, very misty
		08.00	DE 7287
		12.00	DE 7367	Day's run:  Surfaced 168 nm.
			SE 2, shifting counter clockwise, Sea 1, 7/10 (rain), Vis. good, moderate in showers
		16.00	DE 8117
		20.00	DE 5787	Welding work on the outside of ballast tank No. 8.
		24.00	DE 5785
		30.07.43
		04.00	DE 5765
		08.00	DE 5815
			SE 1, Sea 0, 1/10, Vis. good, strong marine phosphorescence
		12.00	DE 5588	Day's run:  Surfaced 139 nm.
			E 1, Sea 0, blue sky, Vis. very good
		16.00	DE 5585
		20.00	DE 5583	Continued work over the side.
		24.00	DE 5591
		31.07.43
		04.00	DE 5645
		08.00	DE 5625
		12.00	DE 5399	Day's run:  Surfaced 81 nm.
			EbyS 1, Sea 1, 5/10, clear sky, Vis. very good, strong marine phosphorescence
		16.00	DE 6177	Work on the upper deck and over the side.
		20.00	DE 6174
		20.22		Radio Message 1.) . . . .
				2.)  "Markworth" continue transit via CD 66.
		20.54	EbyS 2, Sea 1, 3/10, Vis. very good	Dived.
		21.25		Surfaced.
		21.33		Crash dive for training.
		21.40		Surfaced.
		24.00	DE 6149

	Sun and Moon Data 28.07.43
	Sun and Moon Data 29.07.43
	Sun and Moon Data 30.07.43
	Sun and Moon Data 31.07.43

	- 39 -
		01.08.43
		04.00	DE 6125
		08.00	DE 3795
			Summer lightening
		12.00	DE 3843	Day's run:  Surfaced     107 nm
			SE 2, Sea 1, 2/10,v [meaning unclear], lightening	Submerged     3 nm
		12.21		Radio Message  On 3 August at 20.00 hours supply in square 6755 of large square CD.  "Markworth" from Neumann for economical return transit to "Bergen".
				After completion with "Markworth", "Neumann" report "yes" wait in the area.
		16.00	DE 3589
			SE 1, Sea 1, 3/10, Vis. very good
		20.00	DE 3647
		22.10		Radio Message  3.) "Markworth" switch Ireland Circuit on 2 August at 08.00 hours.
		24.00	DE 3627
			Wind calm, like a duck pond, 1/10, v [meaning unclear]
		02.08.43
		00.05		Radio Message   Can only reach supply 2-3 days later than intended.                                             "U-66"
		04.00	DF 1174
			Heavy marine phosphorescence, Vis. changing, very misty, Wind calm, like a duck pond, 2/10
		04.03		Steamer with set lights in sight bearing 260°T.   Turned towards to close, course 90°, speed 12 knots.  It is 2 Swedes "MONGABARRA" and "FORMOSA".   Correct national markings, in addition forward and aft of the side marking a black field with a red cross.
		08.00	DF 1185	Switched Ireland Circuit.
		08.12		Course 50°.
		12.00	DF 1163	Day's run:  Surfaced  200 nm.
			NNW 1, Sea 1, 3/10, light marine phosphorescence, Vis. good
		16.00	DF 1213
		19.24		Crash dive for training.
		20.00	CD 7983
		20.04		Surfaced.
		20.10		Crash dive for training.
		20.23		Surfaced.
		20.29		Radio Message 3.)  "Neumann" wait on "Markworth" near the meeting point.  Go to the meeting point at the reported time.
		20.31		Crash dive for training.
		20.38		Surfaced.
		21.00		Crash dive for training.
		21.07		Surfaced.

	Sun and Moon Data 01.08.43
	Sun and Moon Data 02.08.43

	- 40 -
		continued
		02.08.43
		24.00	CD 7966
			NNW 1, Sea 1-2, 3/10, Vis. very good
		03.08.43
		04.00	CD 8725
		08.00	CD 8795
			NW 2, Sea 1-2, 2/10, 1024 mb, light summer lightening, strong marine phosphorescence, Vis. good
		12.00	CD 8572	Day's run:  Surfaced     146 nm
			NW 1, Sea 2, 1/10, 1023 mb, Vis. good	Submerged     6 nm
		16.00	CD 8552
		19.27		In the sun sector apparent cloud of smoke.  Turned towards, course 260° both diesels HF.
		20.00	CD 8531
			NW 2, Sea 2, 2/10, Vis. very good
		20.27		Broke off, because nothing further sighted.  Continued on course 50°.
		21.35		A surprise attack with aircraft armament and bombs from 2 fighters from the sun sector.  Bridge wrongly ordered "Alarm".  Crash dive stopped in time by the Kommandant in the control room.  2 cm ready for action.  Both engines ahead AK.  Rudder hard over.  The Second Watch Officer Oblt.z. S. Schütze, apparently fell on the 1st approach.  Shot by 2 cm in the chest.  Aircraft approach one after another from the front from just above the water.  On the 3rd approach the 2nd aircraft drops 2 impact bombs and a depth charge which goes off directly under the boat.
				On the 5th approach Matr.Gefr. Lorenz, fell after he had fought bravely in spite of repeated wounds until the last.
				On the 6th approach the Kommandant is wounded and falls out briefly with a bruised backbone.
				Because the aircraft have no more bombs, "Alarm" by the First Watch Officer.  Both casualties are left at the surface because there is no time for rescue.  Interval between the approaches is 30-60 seconds.
				During the crash dive light water intake in the control room at the rod aerial and in the diesel room at the hull valve for the discharge of the auxiliary coolant pump.  Both leaks can be made good and are sealed within short time by on board means.  By blowing at depth A +10 meters the boat is held at depth A +50 meters.
				In spite of several bombs very close to the boat and a depth charge under boat no major damage.  By aircraft armament bombardment, however, very high personnel casualties.
				Casualties:  Oblt.z.S. Schütze     Bridge watch.                   Matr.Gefr. Lorenz

	Sun and Moon Data 02.08.43
	Sun and Moon Data 03.08.43

	- 41 -
		continued
		03.08.43
				Mech.Gefr Nitsch was on the bridge smoking and on the 1st approach both thighs were shot through by explosive ammunition.  He succumbed to his serious wounds about 00.30 hours below deck.
				Heavily wounded: Kommandant, bullet lodged in the abdomen F.z.S. Pfaff, penetrating gunshot wound to the chest Lightly wounded:     First Watch Officer Ltn.z.S. Herbig,   Obstr. Frohlich,   Matr.Obgefr. Müller,   Matr.Gefr. Künkel,   Matr.Gefr. Stumpp,   Matr.Gefr. Dreweck.
				Armament from observation:  Type "Grumman Martlet"
				4 fixed 11 mm machine guns, 2 fixed cannons.
		24.00	CD 8295	Because the wounded cannot stand bridge watch, the bridge watch is stood exclusively by the second watch with the Navigator staying on the bridge continuously.  Proceeding submerged by day.
		04.08.43
		01.55	WSW 3, Sea 3, 6/10 (rain), Vis. bad in rain squalls	Surfaced.
				After surfacing the Second Watch Officer was found still on the lower machine gun platform, while Matr.Gefr. Lorenz was lost overboard.
		02.07		Course 80°.
		02.20		Radio Message  21.30 hours 2 fighters attacked from out of the sun with bombs and on board armament.  Heavy personnel casualties.  Kommandant with a bullet lodged in the abdomen.  Clear to dive with restrictions.  Request to put heavily wounded Fähnrich zur See "Pfaff" ashore in the Azores.  Position naval square CD 8298.
				"Markworth"
		04.00	CD 8372
		04.48		Radio Message  To "Markworth" and "Neumann"
				New meeting point tonight 20.00 hours in naval square CD 5565.   "Neumann" has a doctor aboard.  More to follow.  Caution.
		05.05		Course 10°.
		05.20		Course 350°.
		07.47		Oberleutnant zur See Schütze and Mech.Gefr. Nitsch committed to the sea.
		08.00	CD 5979
			WSW 3, Sea 2, 10/10 (rain), Vis. bad, thunder clouds, lightening, summer lightening
		09.00		Dived.
		12.00	CD 5946	Day's run:  Surfaced      163 nm
				Submerged  18.5 nm
		14.00		Course 345°.
		16.00	CD 5942
		20.00	CD 5918
		24.00	CD 5915

	Sun and Moon Data 03.08.43
	Sun and Moon Data 04.08.43

	- 42 -
		05.08.43
		00.15		Surfaced.
		01.20		Course 120°.
		03.00		Radio Message  1.)  "Neumann" to "Markworth" deliver Metox and if at all possible, substitute personnel.
				2.)  "Markworth" report, if return transit does not appear possible because of the condition of the Kommandant and high personnel casualties.
		04.00	CD 5568
			NbyE 1, Sea 1, 5/10, 1032 mb, Vis. moderate, misty
		05.00		Positioned at ordered meeting point proceeding back and forth.
		08.00	CD 5565	Dived.
			NNE 1, Sea 1, 9/10 (rain), 1032 mb, Vis. bad, horizon occasionally overcast in rain showers
		12.00	CD 5565	Day's run:  Surfaced        65 nm
				Submerged  31.5 nm
		16.00	CD 5565
		16.46 -
		16.49		Surfaced to take the noon fix.
		20.00	CD 5565
		22.40		Course 90°.
		24.00	CD 5565
		06.08.43
		00.03	SE 2-3, Sea 2, 5/10, 1032 mb, Vis. moderate (rain)	Surfaced.
		00.25		Course 140°.
		01.10		Course 0°.
		01.47		Radio Message  1.)  "Neumann" not met, proceeding eastward today suggest meeting 12.00 hours in 6464.
				2.)  Killed Obltn. "Schütze" Matr.Gefr. "Lorenz" Mech.Gefr. "Nitsch".  Doctor urgently needed for Kommandant, Midshipman "Pfaff" and four other sailors.  Submerged by day, because only the Navigator is available.  Request instructions.
				3.)  16 cbm, 2 day's provisions, nearly all fuel and ballast tanks leak.
				"Markworth"
		02.00		Course 90°.
		04.00	CD 5652
		06.36		Radio Message   New meeting point for "Markworth" and "Neumann" is naval square CD 6464.  "Neumann" immediately report your arrival time at the meeting point.  "Blum" contrary to previous orders also head for named meeting point.
				"Markworth" report requirements for return to the homeland.
		07.30		Radio Message  Meet at 12.00 hours.
				"U-117"
		08.00	CD 6451
		09.06		Dived.
		10.16		Course 120°.

	Sun and Moon Data 05.08.43
	Sun and Moon Data 06.08.43

	- 43 -
		continued
		06.08.43
		11.32		Surfaced.
		11.43		"U-117" in sight.  Came to within earshot and began transfer as agreed.  Mar.Ass.Arzt Dr. Schrenk aboard.
		12.00	CD 6456	Day's run:  Surfaced      96 nm
			SSE 3, Sea 2, 2/10, Vis. good	Submerged  36 nm
		13.20		Dived, course 0°.
		16.00	CD 6461
		20.00	CD 6437
		23.00		Surfaced.
		23.10		"U-117" in sight.
				Provisions transfer.  Oberltn. Frerks aboard as back-up Kommandant and Watch Officer.
		24.00	CD 6189
			SW 2, Sea 1-2, 3/10, 1034 mb, Vis. good, light summer lightening, strong marine phosphorescence
		07.08.43
		00.55		Provisions transfer broken off.  N-course and 1500 meters apart in the wake of "U-117".
		03.00		Radio Message  Oberleutnant "Frerks" transferred from "U-117" to "U-66" as back-up Kommandant and 1st Watch Officer.
		04.00	CD 6189
		08.00	CD 6159
			WSW 2, Sea 1-2, 2/10 (rain), Vis. moderate, heavy summer lightening and marine phosphorescence
		09.00		Begin fuel oil transfer work.
		11.54		From port astern from the sun sector a fighter type "Fulmar".  Both diesels ahead AK!  "2 cm clear to fire"!  On the first approach one bomb between both boats at the level of the conning tower.  The fuel oil hose was severed and its end immediately cut.  After the bombing the fighter held at 4000-5000 meters range.  The boat again took a position close aboard and out of the line of fire of "U-117" in a favorable position in relation to the aircraft, and as arranged with "U-117", a crash dive was executed.
			SW 2, Sea 1-2, 1-2/10, Vis. good
		12.00	CD 6159	Day's run:  Surfaced      63 nm
				Submerged  18 nm
		12.20		Course 0°.
		12.25		Last sound bearing from "U-117" (diesel) bearing 185°.
		12.35		2 detonations.
		12.47		3 detonations.
		12.47 -		Astern to port cracking sounds and heavy detonations.  Sinking sounds.  [crossed out in pen in the original]
		12.58
		15.25 -
		15.35		Boat is at periscope depth.

	Sun and Moon Data 06.08.43
	Sun and Moon Data 07.08.43

	- 44 -
		continued
		07.08.43
		16.00	CD 6156
		20.00	CD 6153
		22.30		Surfaced.
		24.00	CD 6129
		08.08.43
		01.30		Radio Message sent:  11.53 hours while supplying unsuccessfully attacked by carrier-based aircraft.  Suggest new meeting place CD 3483 at 12.00 hours.  Require another 35 cbm, 15 days provisions, 2 sailors held, doctor on board.
				"Markworth"
		02.05	SW 1-2, Sea 1, 4/10, 1031 mb, Vis. good, moonshine
		03.25		Radio Message  "Neumann" and "Markworth" new meeting point suggested 8 August at 12.00 hours in naval square CD 3483.  After supply "Neumann" make for ordered naval square DF 62.
		03.34		Radio Message  After completion of fuel transfer and medical assistance for "Markworth", "Neumann" make for naval square DF 62.
		04.00	CD 3759
		08.00	CD 3723
		09.00	SW 2-3, Sea 2, W-swell, 9/10, 1030 mb, Vis. moderate, medium summer lightening	Dived.
		11.43 -		Positioned at meeting point, at periscope depth.
		11.50
		12.00	CD 3483	Day's run:  Surfaced      75.5 nm
				Submerged     29 nm
		14.50		A U.S.A. destroyer stopped bearing 120°T 1000 meters.  Bow left 110-120°.
				Boat goes to depth A +20 meters listening speed!
		16.00	CD 3459	Course 30°.
		17.10		To periscope depth.
		17.14		Fighter circling.
				To depth A +0 meters.
		17.50		To periscope depth.
		17.54		Fighter is still present boat goes to depth A +0.
		18.00		Course 340°.
		20.00	CD 3464
		21.11		Several detonations heard.
		23.20		Boat goes to periscope depth.
		23.30		Depth charge detonation.
		23.35		Boat to depth A +20 meters.
		23.44		Another detonation heard.
		24.00	CD 3429
		09.08.43
		00.05		Came to new course 60°.
		00.40		Surfaced.
		02.40		2 detonations heard.
		04.00	CD 3279	Course 90°.
			WSW 2, Sea 1-2, v [meaning unclear], 1029 mb, Vis. moderate, misty, moonshine

	Sun and Moon Data 07.08.43
	Sun and Moon Data 08.08.43
	Sun and Moon Data 09.08.43

	- 45 -
		continued
		09.08.43
			strong marine phosphorescence
		08.00	CD 3377
		08.43		Dived.
		12.00	CD 3379	Day's run:  Surfaced     78.5 nm
				Submerged  34.5 nm
		12.00		Boat proceeding at periscope depth.
		14.15		3 detonations heard.
		15.41		Radio Message  American tanker sighted a U-boat at 04.17 hours in naval square CD 3498.  Meeting point suggested for Group "Neumann" and "Gräf" is at your discretion.
		16.00	CD 3387
		19.58 -
		22.30		Boat proceeds at periscope depth.
		20.00	CD 3388
		21.17		Radio Message  1.)  . . . .   "Markworth" "Neumann" if not already completed, transfer fuel oil in CE 4555.
				2.)  . . . .
				3.)  . . . .
		23.33		Surfaced.
		24.00	CE 1417
			SSW 2, Sea 1-2, 2/10, 1030 mb, Vis. moderate
		10.08.43
		04.00	CE 1429
			Moonshine, indistinct horizon
		05.20		Leak in the diesel room repaired by applying a patch.  Boat is again clear to dive.
		00.03		Radio Message  Yesterday at meeting place hunted by destroyer and aircraft while submerged.  Proceeding to the north impossible because of the condition of the boat.  Suggest the "Azores" as a favorable point.  Doctor maintains quick disembarkation of Kommandant and Midshipman is urgent.  25 cbm, 13 days provisions, naval square CE 1439.
				"Markworth"
		08.00	CE 1519
		08.19		Radio Message  To "Markworth" initially proceed to the ordered meeting place with "Neumann" in naval square CE 4555 and complete resupply.  "Neumann" is urgently required for further supply.  More to follow.
		08.32	SSW 1, Sea 1, 9/10, 1038 mb, Vis. bad, strong marine phosphorescence	Dived.
		1044		Several detonations heard.
		12.00	CE 1551	Day's run:  Surfaced        76 nm
				Submerged  22.5 nm
		15.15		Radio Message to "Markworth"
				1.)  Supply for return transit to Kals .
				2.)  Azores only, if absolutely required and only for a night either for repairs or delivery of the wounded.

	Sun and Moon Data 09.08.43
	Sun and Moon Data 10.08.43

	- 46 -
		continued
		10.08.43
				Longer stay not possible politically and in view of enemy action.
				3.)  Recommend direct return transit, via vicinity of naval square CG 2230, protected from radar detection by the coast.  Air and torpedo boat escort intended.  After completion of resupply report intentions.
		16.00	CE 1554
		20.00	CE 1557
		23.20		Surfaced.
		24.00	CE 1575
			SW 1, Sea 1, 4/10, 1042 mb, Vis. good, occasionally misty, moonshine, strong marine phosphorescence
		11.08.43
		04.00	CE 1842
		08.00	CE 4212
		08.53	SW 1, Sea 1, 2/10, 1040 mb, Vis. good	Dived.
		12.00	CE 4241	Day's run:  Surfaced      83 nm
				Submerged  22 nm
		16.00	CE 4244
		20.00	CE 4247
		23.23		Boat comes to course 150°.
		24.00	CE 4273
			SW 1, Sea 1, 2/10, 1041 mb, Vis. good, moonshine
		12.08.43
		04.00	CE 4525
		08.00	CE 4558
			Light E-swell, 3/10, 1039 mb, (rain), Vis. good changing to poor in rain showers, strong marine phosphorescence and summer lightening
		09.27		Dived.
		12.00		Day's run: Surfaced  64 nm  Submerged  21 nm.
		16.00	CE 4555	Positioned at meeting point with U-117.
		20.00	CE 4555	Changing courses.
		23.10		Surfaced.
		24.00	CE 4555
			W 1, Sea 1, 2/10, 1029 mb, Vis. good, moonshine, strong marine phosphorescence
		13.08.43
		04.00	CE 4555
		08.00	CE 4555
		09.10	W 1, Sea 1, 3/10, 1033 mb, Vis. good
		12.00	CE 4555	Day's run: Surfaced  65 nm  Submerged  22 nm.

	Sun and Moon Data 10.08.43
	Sun and Moon Data 11.08.43
	Sun and Moon Data 12.08.43
	Sun and Moon Data 13.08.43

	- 47 -
		continued
		13.08.43
		16.00	CE 4555
		20.00	CE 4555
		23.15		Surfaced.
		24.00	CE 4555
			SW 1, Sea 1, 3/10, 1034 mb, Vis. good, moonshine
		14.08.43
		00.18		Metox switched off per Radio Message order.
		00.35		Radio Message sent:  Have been positioned at meeting place for 2 days.  Ship not met.                - U-66 -
		04.00	CE 4555
		08.00	CE 4555
		08.00	S 2, Sea 2, 4/10, 1032 mb, Vis.good, at times moderate in isolated rain showers, strong marine phosphorescence
		08.55		Dived.
		12.00	CE 4564	Day's run: Surfaced  62 nm  Submerged  23.5 nm.
		12.14		Radio Message
				On 16 August at 12.00 hours in naval square CE 2652 Kuppisch supply Markworth with fuel oil for economical return to western France, about 15 to 20 cbm.  Kuppisch report, if arrival later than 17 August, otherwise, only completion with short signal "yes".
		14.00		Periscope depth by day.
		16.00	CE 4562
		20.00	CE 4539
		23.12		Surfaced.
		24.00	CE 4379
			SSW 3, Sea 2-3, 9/10, 1034 mb, moonshine
		15.08.43
		04.00	CE 4366
		08.00	CE 2789
		08.50	S 3-4, Sea 3, 7/10, 1026 mb, Vis. good, moonshine
		08.50		Dived.
		12.00	CE 2792	Day's run: Surfaced  110 nm  Submerged  28 nm.
		16.00	CE 2871
		20.00	CE 2848
		23.07		Surfaced.
		24.00	CE 2854
			SW 2, Sea 2-3, 9/10, 1021 mb, Vis. good, moonshine, partial lunar eclipse
		16.08.43
		04.00	CE 2917
		08.00	CE 2684
		08.45	SW 2, Sea 2-3, 2/10, 1020 mb, moonshine, Vis. good	Dived.

	Sun and Moon Data 13.08.43
	Sun and Moon Data 14.08.43
	Sun and Moon Data 15.08.43
	Sun and Moon Data 16.08.43

	- 48 -
		continued
		16.08.43
		11.45		Surfaced.
		12.00	CE 2652	Boat positioned at meeting point with U-847.
			NNW 2, Sea 2, Vis. good, 2/10, long swell	Day's run: Surfaced  101 nm  Submerged  34.5 nm.
		12.15		Dived.
				At periscope depth on various courses back and forth.
		16.00	CE 2652
		20.00	CE 2652
		20.07		In accordance with Radio Message orders screws attaching the Metox removed and the unit locked up by the Kommandant.
		20.38		U-boat in sight bearing 320°T.
		20.45		Boat surfaces.  Discussion with U-847.  Time for the fueling agreed.
		21.35		Dived.
		23.01		Surfaced.
		23.09		U-847 in sight.
		24.00	CE 2652
			NW 3, Sea 3, medium swell, 3/10, Vis. good
		17.08.43
		00.02		Begin fuel oil transfer.
		04.00	CE 2651
		05.02		Transfer ended.  19 cbm and 5 day's provisions taken over.  Gave a brine pump to Kuppisch (Fresh water distiller).
		05.40		U-847 out of sight.
		06.40		Radio Message:   Supply completed.  Running on Piening route.                                  - Markworth -
		08.00	CE 2664
			WSW 1, Sea 2, 1/10, 1019 mb, Vis. good, moonshine
		08.29		Dived.
		12.00	CE 2666	Day's run: Surfaced  39 nm  Submerged  21 nm.
		16.00	CE 3444
		20.00	CE 3446
		22.50		Surfaced.
		24.00	CE 3456
			SW 1, Sea 1, 9/10, 1030 mb, Vis. medium, isolated rain showers
		18.08.43
		04.00	CE 3546
		08.00	CE 3566
			SbyW 2, Sea 2, 7/10, 1026 mb, Vis. good, moonshine
		08.30		Dived.
		12.00	CE 3644	Day's run: Surfaced  81 nm  Submerged  26 nm.
		16.00	CE 3646
		20.00	CE 3651
		22.46		Surfaced.
		24.00	CE 3656
			WbyN 4-5, Sea 4, v [meaning unclear], (rain), 1022 mb, Vis. bad, strong marine phosphorescence

	Sun and Moon Data 16.08.43
	Sun and Moon Data 17.08.43
	Sun and Moon Data 18.08.43

	- 49 -
		19.08.43
		04.00	CF 1545
		08.00	CF 1564
			NNW 4, Sea 4-5, 9/10, 1024 mb, Vis. moderate, moonshine
		08.33		Dived.
		12.00	CF 1569	Day's run:  Surfaced  77 nm  Submerged  22 nm.
		16.00	CF 1647
		20.00	CF 1648
		20.46		Radio Message:  Return port for Markworth is Lorient.
				- F.d.U. West -
		22.47		Surfaced.
		24.00	CF 1645
			NW 3, Sea 3-4, 4/10, 1026 mb, Vis. moderate later good, strong marine phosphorescence
		20.08.43
		04.00	CF 1664
		08.00	CF 2446
			NNW 2, Sea 2,v [meaning unclear], 1024 mb, Vis. good, strong marine phosphorescence and moonshine
		08.15		Dived.
		12.00	CF 2454	Day's run:  Surfaced  70 nm  Submerged  25 nm.
		12.14		Radio Message:  Today at 20.00 hours Markworth switch to Coastal Circuit.
		12.21		Radio Message: 1.) . . . .
				2.) To Markworth, Brosin and U-516, 3 boats outbound on the Spanish coastal route.           - F.d.U. West -
		16.00	CF 2455
		20.00	CF 2456	Switched to Coastal Circuit.
		22.32		Surfaced.
		24.00	CF 2466
			NW 1-2, Sea 1, long swell,v [meaning unclear], (rain), Vis. bad, strong marine phosphorescence
		21.08.43
		04.00	CF 2565
			SE 1, Sea 1,v [meaning unclear], (rain), Vis. bad, strong marine phosphorescence
		08.00	CF 2656	Dived.
			SE 1, Sea 1,v [meaning unclear], (rain), medium marine phosphorescence
		12.00	CF 2664	Day's run:  Surfaced  102 nm  Submerged  22 nm.
		16.00	CF 2665
		20.00	CF 2666
		22.26		Surfaced.
		24.00	CF 3459
			NNE 3, Sea 2, 7/10, Vis. moderate, strong marine phosphorescence
		22.08.43
		04.00	CF 3558
			NNE 3, Sea 2-3,v [meaning unclear], (rain), Vis. bad, moonshine
		07.30	NbyE 2-3 Sea 2-3, 9/10, Vis. moderate	Dived.

	Sun and Moon Data 19.08.43
	Sun and Moon Data 20.08.43
	Sun and Moon Data 21.08.43
	Sun and Moon Data 22.08.43

	- 50 -
		continued
		22.08.43
		08.00	CF 3648
		12.00	CF 3649	Day's run:  Surfaced  102 nm  Submerged  23 nm.
		16.00	CF 3657
		20.00	CF 3658
		22.15	N 1, Sea 1, long N-swell,v [meaning unclear],  passing showers, Vis. bad, marine phosphorescence	Surfaced.
		24.00	CF 3669
		23.08.43
		02.00	N 1, Sea 1, 9/10, Vis. moderate, misty	Dived.
		04.00	CG 1458
		08.00	CG 1459
		12.00	CG 1467	Day's run:  Surfaced  43 nm  Submerged  54 nm.
		16.00	CG 1468
		20.00	CG 1469
		22.20		Surfaced.
		24.00	CG 1545
			W 2, Sea 1, long swell, 7/10, Vis. moderate, strong marine phosphorescence
		24.08.43
		01.00		Dived.
		04.00	CG 1554
		06.07	SW 2, Sea 1, 2/10, Vis. good, moonshine	Surfaced.
		07.18		Dived.
		08.00	CG 1567
		12.00	CG 1568	Day's run:  Surfaced  42 nm  Submerged  30 nm.
		16.00	CG 1569
		20.00	CG 1647
		22.10		Surfaced.
		24.00	CG 1655
			NNE 1-2, Sea 1, 1/10, Vis. moderate, medium marine phosphorescence
		25.08.43
		00.15		Dived.
		04.00	CG 1656
		06.10	WNW 1-2, Sea 1, 1/10, Vis. good, moonshine, strong marine phosphorescence	Surfaced.
		07.13		Dived.
		08.00	CG 1666
		12.00	CG 2444	Day's run:  Surfaced  32 nm  Submerged  31.5 nm.
		16.00	CG 2445
		20.00	CG 2454
		22.10	SW 4, Sea 3-4, v, Vis. bad, strong marine phosphorescence	Surfaced.
		24.00	CG 2464
		26.08.43
		00.32		Dived.
		03.03	WSW 3, Sea 3-4	Surfaced.

	Sun and Moon Data 22.08.43
	Sun and Moon Data 23.08.43
	Sun and Moon Data 24.08.43
	Sun and Moon Data 25.08.43
	Sun and Moon Data 26.08.43

	- 51 -
		continued
		26.08.43
		04.00	CG 2466	Dived.
		06.15	NW 3, Sea 3, 4/10, Vis. moderate, strong marine phosphorescence	Surfaced.
		06.54		Dived.
		08.00	CG 2546
		08.27		Aircraft from starboard, course 8°.
				Boat goes to depth A -20 meters.
		12.00	CG 2554	Day's run: Surfaced  42 nm  Submerged  30 nm.
		16.00	CG 2555	Aircraft on various courses, large land-based aircraft.  General course north.
				To depth A -20 meters.
		17.21		Aircraft bearing 90°T, general course north.
				To depth A -20 meters.
		18.45		Land in sight bearing 100°T.
		20.00	CG 2556
		22.18	N 4, Sea 3-4, 4/10, Vis. moderate, strong marine phosphorescence	Surfaced. 3 fishing boats ahead on S-course.
		24.00	CG 2614	Course 0°.
		27.08.43
		01.10		Several illuminated steamers and many fishing vessels sighted.  Were avoided.  Illuminated motorboat passes on reciprocal heading.  Turns back, extinguishes lights and passes from sight. (similar to customs cruiser).
		04.00	CG 2266
			N 4, Sea 3-4, 2/10, Vis. good, very strong marine phosphorescence
		06.00		Course 350°.
		06.37	N 3, Sea 3, 3/10, Vis. good, moonshine, very strong marine phosphorescence	Dived. To periscope depth.
		08.00	BF 7898
		08.30		Smoke cloud bearing 12°T (fishing trawler)
		08.32		Aircraft ahead to starboard, course 220°.  Land-based aircraft, 2-motored.
				To depth A -20 meters.
		09.33		Masthead of a destroyer bearing 338°T, course 180°.
		10.55		Destroyer masthead out of sight bearing 220°T.
		11.10		Aircraft bearing 197°T, course 240°, large land-based aircraft, 2 motored.  To depth A -20 meters.
		11.23		Several detonations heard astern to port.
		11.25		Sound bearing 150°T, destroyer propellers, growing louder, then again fainter.  Last sound bearing 100°T.
		12.00	BF 7895	Day's run: Surfaced  189 nm  Submerged  30 nm.
		16.00	BF 7892	Heavy fishing trawler traffic close under land.
		19.50		2 masted steamer in sight.  Spanish freighter "GAYARRE" course 240°.
		20.00	BF 7869
		21.20		Freighter out of sight.
		21.30		Surfaced.
		24.00	BF 7943
			NE 2, Sea 1-2, 1/10, Vis. good, strong marine phosphorescence

	Sun and Moon Data 26.08.43
	Sun and Moon Data 27.08.43

	- 52 -
		28.08.43
				Numerous traffic of fishing vessels and a few steamers along the coast.
		04.00	BF 7933
			N 1, Sea 1, 1/10, Vis. medium, strong marine phosphorescence
		06.45		Dived.  Proceeding at depth A -50 meters.
		08.00	BF 8734
		08.59		A variety of fishing trawlers and cutters sighted leaving harbors on N-courses.
		09.03		Spanish coast guard vessels bearing 225° range 4000 meters, they look like old fishing trawlers with light artillery on the forecastle. Spanish flag at the gaff, a pennant at the after masthead, on the forecastle a painted square.  Upper third black with the lower two thirds white. Course 10°.
		09.21		To periscope depth.
		09.34		Coastal freighter on an easterly course on the 200-meter line.
		10.05		Coast guard vessel out of sight bearing 36°.
		12.00	BF 8725	Day's run: Surfaced  90 nm  Submerged  26 nm.
		14.11		Aircraft bearing 20°T, type Vickers-Wellington, S-course.
		16.00	BF 8726
		19.00		A Spanish tanker bearing 300°T with a white ring and red parallelogram, course 285°, 4000 GRT, range 8000 meters.  Distance from the coast 12 nm on the 200-meter line.
		20.00	BF 8734	A number of fishing vessels on southerly courses sighted.
		22.04		Surfaced.
		24.00	E 1, Sea 1, 1/10, Vis. moderate, misty, strong marine phosphorescence
		29.08.43		Several lighted fishing vessels and coastal freighters in sight.
		04.00	BF 8918
			E 1, Sea 1, blue sky, Vis. moderate, somewhat misty, strong marine phosphorescence
		05.10		Came to new course 0°.
		06.15		Dived.
		08.00	BF 8687
		12.00	BF 8684	Day's run: Surfaced  89 nm  Submerged  23.5 nm.
		16.00	BF 8681
		20.00	BF 8657
		22.25		Surfaced.
		24.00	BF 8624
			NbyE 2-3, Sea 2, 2/10, Vis. very good, clear dark night, starry sky, marine phosphorescence
		30.08.43
		00.30		Dived.
		04.00	BF 8624
		04.30	N 2, Sea 2, 4/10, Vis. very misty, marine phosphorescence	Surfaced.

	Sun and Moon Data 28.08.43
	Sun and Moon Data 29.08.43
	Sun and Moon Data 30.08.43

	- 53 -
		continued
		30.08.43
		05.35		Dived.
		08.00	BF 8381
		12.00	BF 8357	Day's run: Surfaced  26.5 nm  Submerged  30 nm.
		16.00	BF 8354
		20.00	BF 8351
		22.30	NNW 3, Sea 3, 6/10, Vis. moderate, strong marine phosphorescence	Surfaced.
		23.59		Dived.
		24.00	BF 8321
		31.08.43
		04.00	BF 5887
		04.04		Surfaced.
		04.27		Radio Message:  Positioned to enter port in 30 hours.  Request bearing signals from Lorient I station.  - U-66 -
		05.40		Dived.
		08.00	BF 5854
		12.00	BF 5827	Day's run: Surfaced  27 nm  Submerged  29.3 nm.
		14.37		Radio Message to U-66:  Escort position 00.30 hours Point Lampe, crossing the 50-meter line without escort prohibited.
				2.Ufl.
		16.00	BF 5824	Several fishing vessels sighted.
		20.00	BF 5821
		21.00		Surfaced for navigation fix.
		22.04		Course 40°.
		24.00	E 0, Sea 0, 2/10, Vis. moderate, misty, no marine phosphorescence
		01.09.43
		00.55	On route.	Dived.
		04.00		Surfaced.
		06.00	E 0, Sea 0, 2/10, Vis. moderate, misty, no marine phosphorescence	Dived.
		09.50		Surfaced.
		11.30		Taken in Sperrbrecher convoy.
		13.05		Made fast Scorff bunker, Lorient.
				Completed on 1 September 1943.
				Kapitänleutnant and
				Kommandant.

	Sun and Moon Data 30.08.43
	Sun and Moon Data 31.08.43
	Sun and Moon Data 01.09.43

 

	Comments of the Befehlshabers der Unterseeboote
	on the K.T.B. of "U-66" (Markworth) from 29 April - 1 September 1943.
	The boat was offered several favorable opportunities in its operations area off the strongly air-protected American coast from which the Kommandant made two clear sinkings.         During a surprise aircraft attack on 3 August the boat suffered heavy casualties among the bridge watch by aircraft armament bombardment, among other things the Kommandant was seriously wounded, so that for the safe return of the boat Oblt.z. S.d. R. Frerks of "U-117" had to come aboard and take command.         No further comments.
	Accredited successes:
	Tanker 10,600 GRT sunk Tanker 10,600 GRT sunk Tanker                               torpedoed. Tanker 21,200 GRT sunk. ===========================	For the Befehlshaber der Unterseeboote - The Chief of Operations -

	Report to A 19:
	At 21.30 hours on 3 August several short detonations took place.  At that moment the control room Alarm was actuated.  Previous driving condition port diesel LV diesel/electric.  Ballast tank 6-8 was flooded and afterwards with clear [for dive] report ballast tanks 4/5.   From bridge came the order "do not flood" vent valves were closed and the [ballast tanks] were blown.  The II W.O. lay over the coning tower hatch bleeding from the mouth.  The Commander and I W.O. were now on the bridge.  The first wounded came from above.  Since the Alarm both E-motors were running at ahead GF.  Both diesels were requested, engine telegraphs on ahead AK.  Further orders were transmitted partly orally to the diesel room.  Both diesels started, port immediately on ahead AK starboard a little bit later, the clutch slipped, the starboard shaft was driven with E-motor supplement.   Diesels suctioned through the conning tower hatch.  Signal lamp box for hull openings showed the outboard exhaust gas valve "closed".  Two strong vibrations under the boat ahead to starboard and astern to port directly under the diesel engine room.  Approximately 1/2-1 minute after the concussions "Alarm" was ordered from the bridge.  By request water entry was not reported there until now.  Both diesels were turning at AK.  The alarm bell did not strike with "Alarm" so the order was passed verbally to the diesel room and both diesels stopped.  In the diesel room only two lamps burned.  With the concussion under the stern, the helmsman landed in the control room with the push button switch in his arms.  The alarm bell was activated a moment later from the control room.  The failure of the main rudder and the automatic battery switch were reported.  All signaling devices had failed.  When flooding [Ballast tanks] 4/5 (6-8 were already flooded) the diesel room reported clear.  Battery switch I was brought on-line immediately, until then both E-motors were stopped.  Boat dived by its own forward momentum the starboard RPM indicator showing no revolutions.  Forward and aft diving planes failed, and were operated by hand.  Port ahead HK.  The boat descended quickly.  In the control room several small water leaks.  All depth meters except for the safety depth meter failed.  Boat had reached depth A +10 meters and was descending deeper quickly.  Diesel room reported a large water leak in the forward diesel bilge.  Main bilge pump set to pump from the forward diesel bilge.  Strong rushing of air on starboard side.  Control room reported: "depth regulator starboard bunker pressure falling quickly."  Water level depth controller broken and pressure equalization with flooding regulator. (Starboard tank)  Pressure seeker flood regulator too slow.  [Ballast tank] 5 both sides were blown.  Boat held at depth A +50 meters.  E-motor room reported both motors ready.  Battery switch II brought on line.  In  order to use the main bilge pump to pump from the diesel bilge the boat went to depth A -10 meters.  The boat can be held between depth A -20 and A meters with air bubble in [ballast tank] 5 both sides and both E-motors ahead HK later ahead LK.   Main bilge pump pumped from forward diesel bilge.  Report from diesel room: "Discharge valve auxiliary coolant pump has broken between hull valve and pressure hull."  The hull valve housing was supported with leak shoring and wedges.  The main bilge pump could handle the water intake.  The housing was almost sealed by further supporting of the valve housing and attaching a strong clamp with a rubber gasket. Ballast tank 5 cross connected and blown with the main ballast tank blow valve port and the exhaust gas valve housing vented to the interior of the boat.  The boat was driven down by the bow during the water intake in the forward diesel bilge.  Therefore successful pumping from the forward diesel bilge was ensured.  Before the boat was able to fix a blind flange over the pump discharge of the auxiliary coolant pump it was ready to submerge to A meters.  Malfunctions could be eliminated, excluding the attack periscope, magnetic compass and speed measuring gear.  After a blind flange was placed on the pump discharge the boat was ready to deep dive.
	The Commander, I W.O. and 1 Midshipman were seriously wounded by machine gun fire on the bridge.  The II W.O. and 2 sailors were fatally wounded. Three sailors were lightly wounded.

 

---

 

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