U-506 - 2nd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Lorient	6 April 1942	Lorient	15 June 1942	71

 

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
3 May 42	08.19	25°15'N, 79°45'W	SAMA	567	Nicaraguan
10 May 42	09.31 - 10.57	28°33'N, 90°06'W	AURORA (damaged)	7,050	American
13 May 42	21.38	28°21'N, 89°34'W	GULFPENN	8,862	American
14 May 42	05.46	28°09'N, 90°22'W	DAVID MCKELVY (damaged)	6,821	American
16 May 42	11.01	28°27'N, 90°14'W	SUN	9,002	American
16 May 42	11.10 - 11.21	28°27'N, 90°14'W	WILLIAM C. MC TARNAHAN (damaged)	7,306	American
17 May 42	05.35	28°09'N, 89°50'W	GULFOIL	5,189	American
19 May 42	08.58	28°33'N, 91°02'W	HEREDIA	4,732	American
20 May 42	07.58	28°09'N, 89°58'W	HALO	6,986	American
28 May 42	03.12 - 04.22	29°51'N, 72°38'W	YORKMOOR	4,457	British
31 May 42	02.52 - 04.50	30°27'N, 61°18'W	FRED W. GREEN	2,292	British
			Total = 63,264
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  506  ".
			Kommandant:  Kapitänleutnant Würdemann.
				Beginning:      26 March 1942
				Concluding:       15 June 1942.
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
				K  r  i  e  g  s  t  a  g  e  b  u  c  h
				of
				Unterseebootes    "U - 506"
				Kommandant:  Kapitänleutnant Würdemann
				Beginning:    26 March 1942
				Concluding:    15 June 1942
		26.03.42		Shipyard repairs and outfitting.
		to	Lorient	03 April  Sea trial.
		05.04.42		4 and 5 April  Degaussing.
		06.04.42	Lorient
		19.30		Cast off from Berth A 3 for war patrol.
		20.00	SW 4, Sea 3, Vis. good	Followed Sperrbrecher.
		21.03	Point Lucie 2	Released Sperrbrecher.
		22.02	Point Rb. 1	Transit on Route "Cedernland"/"Tannenadel".
		07.04.42
		00.30	Point Ceder	Avoided many fishermen.
			SW 3-4, Sea 3, overcast, Vis. good
		03.00	Point Tanne
		07.15		Dived.
		11.15		Passed the 200-meter line.
		12.00	BF 3370        46° 35'N	Day's run:  142 nm      12 nm  =  154 nm.
			5° 07'W
		16.00	BF 5570
		20.00	BF 5490
		21.26		Surfaced.  - Transit speed 12 knots. -
		08.04.42	Bay of Biscay
		00.00	BF 5480
			W 3, Sea 2-3, cloudy, Vis. good
		04.00	BF 4690
		08.00	BF 4680	Dived.  - Proceeded submerged. -
		12.00	BF 4670        46° 31'N	Day's run:        86 nm            35 nm  =  121 nm
			7° 55'W	142  "              12  "
				228 nm        47 nm
		13.30		Deep diving test.  Reached diving depth = A +32 meters.
				- No issues. -

	Sun and Moon Data 06.04.42
	Sun and Moon Data 07.04.42
	Sun and Moon Data 08.04.42

	- 2 -
		continued
		08.04.42
		16.00	BF 4670
		20.00	BF 4590
		21.24		Surfaced.  - Transit speed 12 knots. -
		09.04.42	Western Bay of Biscay
		00.00	BF 4580
			SW 4-5, Sea 4, short, heavy Swell, changing cloudiness, Vis. medium
		04.00	BF 4570
		07.25		Dived.  - Proceeded submerged. -
		08.00	BF 4490
		12.00	BF 4720        46° 26'N	Day's run:        71 nm            34 nm  =  105 nm
			10° 21'W	228  "              47  "
				299 nm        81 nm
		13.30 - 15.10		Surfaced.
		16.00	BF 4720
		20.00	BF 4470
		21.34		Surfaced.  - Transit speed 12 knots. -
		10.04.42	Northwest of Spain
		00.00	BF 4740
			SW 2-3, Sea 2, long Swell, Vis. good
		04.00	BF 4740
		08.00	BE 6990
		11.00		Dived.
		12.00	BE 9350        45° 05'N	Day's run:       103 nm            18 nm  =  121 nm
			12° 15'W	299  "               81  "
				402 nm        99 nm
		13.00		Surfaced.
		16.00	BE 9370
		20.00	BE 9530

	Sun and Moon Data 08.04.42
	Sun and Moon Data 09.04.42
	Sun and Moon Data 10.04.42

	- 3 -
		11.04.42
		00.00	BE 9540	Short Signal sent:  "My position is square BE 94."
			Shifting to the S 3-4, Sea 3-4, overcast, Vis. medium, Swell
		04.00	BE 9490
		08.00	BE 9720	Diesel-electric transit speed.  Changing RPM to determine the most economical power setting.
		12.00	BE 9710        43° 40'N	Day's run:       168 nm             3 nm  =  171 nm
			15° 36'W	403  "                99  "
				571 nm        102 nm
		16.00	BE 8930
		20.00	BE 8920
		12.04.42	West of Spain
		00.00	BE 8940
			SW 4-5, Sea 4, long, large Swell, clear, Vis. good
		04.00	BE 8860
		08.00	BE 8850
		12.00	BE 8870        42° 53'N	Day's run:       148 nm             -  nm  =  148 nm
			18° 32'W	571  "             102  "
				719 nm        102 nm
		13.30		Proceeded submerged due to large Swell.
		16.00	CF 2330
		17.55		Surfaced.  - Proceeded on the surface. -
		20.00	CF 2350
		13.04.42	Northeast of the Azores
		00.00	CF 2380
			WSW 4-5, slowly abating, Sea 3-4, long Swell, Vis. over 10 nm
		04.00	CF 2610
		08.00	CF 2530
		12.00	CF 2550        41° 23'N	Day's run:       116 nm            11 nm  =  127 nm
			20° 25'W	719  "             102  "
				835 nm        113 nm
		16.00	CF 2810
		20.00	CF 2760

	Sun and Moon Data 11.04.42
	Sun and Moon Data 12.04.42
	Sun and Moon Data 13.04.42

	- 4 -
		14.04.42	Northeast of the Azores
		00.00	CF 5120
			W 1, Sea 1, long Swell, totally overcast, hazy, Vis. low
		04.00	CF 5140
		08.00	CF 4390	Diesel-electric transit speed 8-9 knots.
				(Diesel 230 RPM, E-motor 200 RPM)
				Due to continual W-Swell decided to proceed south of the Azores.
		12.00	CF 4650        38° 48'N	Day's run:        197 nm               -  nm  =  197 nm
			22° 52'W	835  "             113  "
				1032 nm        113 nm
		16.00	CF 4670
			Scattered fog
		20.00	CF 4860
		15.04.42	Azores
		00.00	CF 7220
			NW 1, smooth Sea, Swell, overcast, misty, fog banks
		04.00	CF 7240
		08.00	CE 9630	Switched to Greenland Circuit.
		12.00	CE 9650        36° 05'N	Day's run:          200 nm             -   nm  =  200 nm
			25° 15'W	1032  "             113  "
				1232 nm        113 nm
		13.10 - 14.00		Test dive.
		16.00	CE 9670
		20.00	CE 9820
		16.04.42	South of the Azores
		00.00	CE 9840
			NE 1, smooth Sea, cloudy, Vis. medium
		04.00	CE 9780
		08.00	DG 2310
		12.00	DG 2240       34° 22'N	Day's run:          198 nm             2  nm  =  200 nm
			28° 50'W	1232  "             113  "
				1430 nm        115 nm
		16.00	DG 2270
		20.00	DG 2420
		17.04.42	Southwest of the Azores
		00.00	DG 2440
			N 1, Sea 1, cloudy, Vis. good
		00.30	DG 1660	Light in sight bearing 220°T.  Turned towards and held on.  Distinguished as a steamer, side lights set in accordance with rules of the road and hull and stern are brightly illuminated with lights.

	Sun and Moon Data 14.04.42
	Sun and Moon Data 15.04.42
	Sun and Moon Data 16.04.42
	Sun and Moon Data 17.04.42

	- 5 -
		continued
		17.04.42
		01.30		Medium freighter with 4 loading hatches.  Course 85-90°.  The glare of the lights is so dazzling, the name and nationality are not distinguished.  Did not stop and came to old course 250°.
		04.00	DG 1650
		08.00	DG 1670
		12.00	DG 1830       32° 50'N	Day's run:          190 nm             -  nm  =  190 nm
			31° 11'W	1430  "             115  "
				1620 nm        115 nm
		16.00	DG 1810
		20.00	DG 1760
		18.04.42	Central Atlantic
		00.00	DG 1780
			NE 2-3, Sea 2, changing cloudiness, Vis. good
		04.00	DF 3990
		08.00	DF 6320
		10.05 - 11.05		Test dive.
		12.00	DF 6340       31° 45'N	Day's run:          193 nm             4  nm  =  197 nm
			35° 28'W	1620  "             115  "
				1813 nm        119 nm
		14.30 - 15.30	DF 6260	Artillery combat training with all weapons.
			SSE 2, Sea 1	(First artillery firing of the boat)
				Target:  a raft with a circular target 2 x 1 meter.
				1.  Approach:  Bow (initial range = 3200 meters) with turn off (range = 1000 meters) to running combat.
				2.  Approach:  Armed attack at range = 800 meters.
				Fired ammunition:
				10.5 cm      = 20 rounds
				3.7 cm        = 32 rounds
				M.G. C/30  = 80 rounds
				M.G. 34      = 450 rounds
		16.00	DF 6250
		20.00	DF 6270
		19.04.42	Central Atlantic
		00.00	DF 6180
			SW 1-2, Sea 1, Vis. very good
		04.00	DF 6410
		08.00	DF 5620
		12.00	DF 5560       30° 45'N	Day's run:          200 nm             -  nm  =  200 nm
			39° 25'W	1813  "             119  "
				2013 nm        119 nm
		16.00	DF 5550
		20.00	DF 6270

	Sun and Moon Data 17.04.42
	Sun and Moon Data 18.04.42
	Sun and Moon Data 19.04.42

	- 6 -
		20.04.42	Central Atlantic
		00.00	DF 5720
			SSW 2, Sea 1, cloudy, Vis. good
		04.00	DF 5710
		08.00	DF 4950
		12.00	DF 4970       29° 30'N	Day's run:          173 nm             -  nm  =  173 nm
			42° 35'W	2013  "             119  "
				2186 nm        119 nm
		13.05 - 13.55		Dived.  Crew muster.  Commandant's speech to mark the Führer's birthday.
		16.00	DF 7230
		17.46		Incoming Radio Message (1630/203):  "Schacht and Würdemann.  Head for naval square Dora Anton 90 by the shortest route.  Conserve fuel.  Fuel supply on return transit is intended, however not certain.  Notification will be timely."
		20.00	DF 7210	Came to most economical cruise.  Diesel-electric 6-7 knots.
				(Diesel 220 RPM)
				(E-motor 130 RPM)
				Decide to head for the ordered square via the Bahamas Islands and Florida Straits.
		21.04.42	Central Atlantic
		00.00	DF 7150
			SSW 3, Sea 2, cloudy, Vis. changing
		04.00	DF 7140
		04.58		Short Signal Sent:  "Position is DE 9360."
		05.07		Short Signal sent:  "Still have 183 cbm fuel."
		08.00	DE 9360	Both Short Signals confirmed.
		12.00	DE 9350       28° 49'N	Day's run:          178 nm             2  nm  =  180 nm
			48° 33'W	2186  "             119  "
		[typo DE 9350 = 28° 57'N 45° 42'W]		2364 nm        121 nm
		16.00	DE 9340
		20.00	DE 9250
		22.04.42	Central Atlantic
		00.00	DE 9230
			SW 3-4, Sea 2, cloudy, Vis. good
		04.00	DE 9150
		08.00	DE 9140
		12.00	DE 9130       28° 49'N	Day's run:          156 nm             -  nm  =  156 nm
			48° 33'W	2364  "             121  "
				2520 nm        121 nm
		16.00	DE 8390
		20.00	DE 8370

	Sun and Moon Data 20.04.42
	Sun and Moon Data 21.04.42
	Sun and Moon Data 22.04.42

	- 7 -
		23.04.42	Central Atlantic
		00.00	DE 8290
			SSW 2-3, Sea 2, cloudy, Vis. good, scattered rain
		04.00	DE 8280
		08.00	DE 8270
			DE 8190       28° 36'N	Day's run:          149 nm             -  nm  =  149 nm
			51° 21'W	2520  "             121  "
				2669 nm        121 nm
		15.03 - 15.27		Test dive.
		16.00	DE 8180
		20.00	DE 8170
		24.04.42	Central Atlantic
		00.00	DE 7380
			S-SW 3-4, Sea 2-3, overcast, Vis. changing, rain showers
		04.00	DE 7610
		08.00	DE 7530
		12.00	DE 7520       28° 20'N	Day's run:          145 nm             1  nm  =  146 nm
			54° 04'W	2669  "             121  "
				2814 nm        122 nm
		16.00	DE 7510
		20.00	DE 7430
		25.04.42	Central Atlantic
		00.00	DE 7420
			SW 3, Sea 2-3, cloudy, Vis. medium-good
		04.00	DD 9630
		08.00	DD 9620
		12.00	DD 9640       28° 08'N	Day's run:          146 nm             -  nm  =  146 nm
			56° 50'W	2814  "             122  "
				2960 nm        122 nm
		1354		Incoming Radio Message (1241/291):  "To Schacht and Würdemann.  Heavy traffic is suspected from square DM 19 and 43 to DA 6850, 8120, 5850.  Very heavy tanker traffic from both of the last points.  Attempt to interdict traffic routes in constricted areas.  Attention is called to situation reports as soon as noticed, possibly through radio repeaters."
		16.00	DD 9560
		20.00	DD 9550

	Sun and Moon Data 23.04.42
	Sun and Moon Data 24.04.42
	Sun and Moon Data 25.04.42

	- 8 -
		26.04.42	Central Atlantic
		00.00	DD 9540
			WSW 5, Sea 4, overcast, Vis. good
		04.00	DD 9460
		08.00	DD 9440
		11.03		Dived to proceed submerged.
		12.00	DD 8660       27° 55'N	Day's run:          145 nm             2  nm  =  147 nm
			59° 35'W	2960  "             122  "
				3105 nm        124 nm
		16.00	DD 8660
		16.50		Surfaced.
		18.05		Dived again to proceed submerged.
		20.00	DD 8660
		27.04.42	Central Atlantic
		00.00	DD 8650
			Shifting from SW to WNW 3, Sea 3, rain showers, Vis. good, bright moon
		04.00	DD 8670
		08.00	DD 8590
		12.00	DD 8580       27° 45'N	Day's run:          73 nm            25  nm  =  98 nm
			61° 25'W	3105  "             124  "
				3178 nm        149 nm
		16.00	DD 8490
		20.00	DD 8480
		28.04.42	South of Bermuda Islands
		00.00	DD 8470
			NW 2-3, Sea 2, Vis. good, bright moonlit night
		04.00	DD 7690
		08.00	DD 7680
		12.00	DD 7910       27° 32'N	Day's run:         146 nm              - nm  =  146 nm
			64° 12'W	3178  "             149  "
				3324 nm        149 nm
		16.00	DD 7820
		20.00	DD 7810
		29.04.42	East of the Bahamas Islands
		00.00	DD 7720
			Trade Wind weather, NE 2-3, Sea 2, clear, Vis. good, very bright moonlit night
		04.00	DC 7710
		08.00	DC 9920
		12.00	DC 9910       27° 31'N	Day's run:         197 nm              - nm  =  197 nm
			67° 40'W	3324  "             149  "
				3521 nm        149 nm

	Sun and Moon Data 26.04.42
	Sun and Moon Data 27.04.42
	Sun and Moon Data 28.04.42
	Sun and Moon Data 29.04.42

	- 9 -
		continued
		29.04.42
		16.00	DC 9820
		20.00	DC 9810
		30.04.42	East of the Bahamas Islands
		00.00	DC 9750
			Trade Wind weather, night bright as day
		04.00	DC 8960
		08.00	DC 8940
		12.00	DC 8860       27° 03'N	Day's run:         209 nm              - nm  =  209 nm
			71° 37'W	3521  "             149  "
				3730 nm        149 nm
		16.00	DC 8880
		17.05 - 18.35		Test dive and damage control exercises.
		20.00	DC 8790
		23.17	DC 8780	Crash dive for aircraft.  (3-eingined land-based aircraft). - Was unsighted. -
		23.31		Surfaced.
		01.05.42	East of the Bahamas Islands
		00.00	DC 8780
			Trade Wind weather, ENE 2, night bright as day
		04.00	DN 1330
		08.00	DN 1310
		12.00	DN 1230       26° 19'N	Day's run:         203 nm              4 nm  =  207 nm
			75° 00'W	3730  "             149  "
				3933 nm        153 nm
		16.00	DN 1240
		15.10 - 16.38		Test dive.
		20.00	DN 1180
		22.24	Vis. 15 nm	"Man Island" lighthouse (Grand Bahama Island) in sight.  - Moved back and forth at the limit of visibility. -
		02.05.42	Bahamas Islands, Florida Straits
		00.00	DM 3630
			NE 2, Sea 1-2, Vis. good, clear, bright as day night
		02.00		Ran with both diesels 2 x HF (14-15 knots) in the NE Providence Channel.
		04.00	DM 3610
		04.45		"Abaco" Lighthouse bearing 0°T, 5 nm.
		08.00	DM 3270	Ran through the NW Providence Channel.  Except for 2 small sailing vessels, nothing seen.  All lighthouses as in peacetime.
		12.00	DM 3140      26° 14'N	Day's run:         218 nm              4 nm  =  222 nm
			79° 08'W	3933  "             153  "
				4151 nm        157 nm
		12.35		Entered the Florida Straits.  Dived.

	Sun and Moon Data 29.04.42
	Sun and Moon Data 30.04.42
	Sun and Moon Data 01.05.42
	Sun and Moon Data 02.05.42

	- 10 -
		continued
		02.05.42
		16.00	DM 2360
			NE 1, Sea 1, Vis. good
		16.20		Surfaced.
		17.15		Crash dive for aircraft.  (Sea plane.)
		17.40		Surfaced.  Course 200°.  Surface transit 8-9 knots.
		19.30		Crash dive for aircraft.
		20.00	DM 2350	Surfaced.
		20.10		Crash dive for aircraft.  (Slow land-based aircraft.)
		22.09		Surfaced.  Slow land-based aircraft in sight which flies back and forth on the American coast.
		22.58		Crash dived for the land-based aircraft.  May have been seen.
		03.05.42	Florida Straits
		00.00	DM 2350
			ESE 2, Sea 1, changing cloudiness, Vis. good, very bright moonlit night
		02.00		Surfaced.
		02.13		Crash dive for aircraft.  (Sea plane.)
		02.33		Surfaced.  Ran to the SW at high transit speed (14 knots).  All lighthouses on the Florida coast as in peacetime.  Bright light glow is seen over the city of Miami.
		04.00	DM 2380
		07.24	DM 2658	Steamer in sight bearing 160°T.  (course 345°)  Maneuvered ahead.
		08.00	DM 2650
		08.15	DM 2658	Dived for submerged attack.
		08.19		Single shot from tube 5 with:
				Target speed = 8 knots, target angle = 90°, depth = 2 meters.
				Hit after 29 seconds.  (440 meters) in forward third.
		08.23		Surfaced.
		08.29		Steamer sinks slowly over the forestem.
				Appearance:  clipper bow, 2 masts, 1 long thin smokestack, 4 cargo hatches, 110 meters long.  Size 3500 GRT.
				After surfacing nothing heard on the 600 meter wave.
		09.00		Carysfort Reef lighthouse in sight.
		09.23   10.02	Carysfort Reef bearing 315°T, 15 nm away	Steamer in sight bearing 270°T.  Steamer proceeds close under the coast, about course 20° and displays a strong bow and stern sea.  Apparently a modern passenger steamer estimated at 10000-12000 GRT.  Because the bearing shifts steadily ahead abandoned pursuit.
		10.31	Cloudless moon	Shadow in sight bearing 280°T.  Large loaded modern tanker on NNE course proceeding along the Florida reefs.  Maneuvered ahead.
		11.21	Carysfort Reef bearing 262°T, 10 nm away	Pursuit broken off at range 4000-5000 meters, target angle = 90°, due to the beginning of twilight.
				Moved away from the coast.
		11.50		Freighter on NNE course in sight, proceeding close under the coast.

	Sun and Moon Data 02.05.42
	Sun and Moon Data 03.05.42

	- 11 -
		continued
		03.05.42
		12.00	DM 2670      25° 07'N	Day's run:           95 nm             22 nm  =  117 nm
			80° 02'W	4151  "             157  "
				4251 nm        179 nm
		12.10		Dived.
		16.00	DM 2670
		17.00		Surfaced.
		17.30		Crash dive for 6 fighter aircraft in 2 formations.
		18.00		Surfaced.
		20.00	DM 2670
		20.15		Crash dive for land-based aircraft.
		22.00		Surfaced.
		23.15	DM 2673	Crash dive for land-based aircraft.
		23.19		2 aircraft bombs at depth 60 meters.  No damage.
		04.05.42	Florida Straits
		00.00	DM 2670
			ESE 2, Sea 1, Vis. good, bright moon
		02.46		Surfaced.  - Proceeded on the surface to the southwest. -
		04.00	DM 2910
		08.00	DM 2850
		12.00	DM 2870      24° 02'N	Day's run:           92 nm             12 nm  =  104 nm
			80° 57'W	4246  "             179  "
				4338 nm        191 nm
		12.16		Dived.  - Proceeded submerged. -
		16.00	DM 2870
		20.00	DM 2870
		05.05.42	Florida Straits
		00.00	DM 5130
			ENE 2, Sea 1, cloudy, at times rain, Vis. medium, bright moon
		02.35		Surfaced.  Due to heavy navigation offset after a fix (35 nm) intended search tonight of the Florida reefs within the 200-meter line is not possible.
		04.00	DM 5120
		08.00	DM 2770
		10.15	Misty	Sand Key lighthouse in sight
		11.30		Cosgrove Shoal in sight.
		12.00	DM 1990      24° 18'N	Day's run:           72 nm             12 nm  =  84 nm
			82° 10'W	4338  "             191  "
				4410 nm        203 nm
		12.15		Dived.  - Submerged transit. -
		16.00	DM 1990
		20.00	DM 1990

	Sun and Moon Data 03.05.42
	Sun and Moon Data 04.05.42
	Sun and Moon Data 05.05.42

	- 12 -
		06.05.42	Florida Straits
		00.00	DM 1980
			ENE 1-2, Sea 1, Vis good, clear bright moonlit night
		02.36		Surfaced. - Ran towards the coast. -
		04.00	DM 1950	Nothing seen between Rebecca Shoal and Sand Key inside the 200-meter line.
		04.40		Incoming Radio Message (1542/217):  "Schacht and Würdemann.
				1.)  To deliver pain killers be at naval square DL 31 upper-right corner on 6 May  at 15.00 hours.  Würdemann report later arrival by Short Signal if meeting at this time is not possible.  No bearing signals.
				2.  . . . . . . . . "
		06.30		Short Signal sent:  "Will be at ordered meeting point later, namely 1 day."
		08.00	DM 4130	Surface transit to ordered meeting point.
		10.05	DM 4420	Crash dive for aircraft with set lights.  Aircraft turned hard towards the boat.
		10.50 11.03		Surfaced.  Aircraft is still in sight and circles the diving location.  Lights are still set.  As the aircraft again turns towards the boat, crash dive.
		12.00	DM 4220      24° 06'N	Day's run:           99 nm             13 nm  =  112 nm
			83° 25'W	4410  "             203  "
				4509 nm        216 nm
		16.00	DM 4220	Due to failure of the starboard diesel (oil cooler torn) can not reach the meeting point at the ordered time anyway, proceeded submerged.
		20.00	DM 4210
		07.05.42	Gulf of Mexico
		00.00	DM 4210
			N 1, smooth Sea, clear, Vis. 15 nm
		03.00		Surfaced.  Proceeded on the surface to the meeting point.
		04.00	DM 1870
		07.04		Sent Radio Message (0637/251):  "To Schacht.  Due to air meeting first possible on 8 May at 15.00 hours."
		08.00	DM 1750
		12.00	DL 3690       25° 06'N	Day's run:           86 nm             29 nm  =  115 nm
			84° 56'W	4509  "             216  "
				4595 nm        245 nm
		16.00	DL 3650
		20.00	DL 3530
		08.05.42	Gulf of Mexico
		00.00	DL 3250
			Wind calm, smooth Sea, hazy, Vis. poor
		04.00	DL 3210	Proceeded on the surface to the meeting point.
		08.00	DL 3130

	Sun and Moon Data 06.05.42
	Sun and Moon Data 07.05.42
	Sun and Moon Data 08.05.42

	- 13 -
		continued
		08.05.42
		12.00	DB 7870      26° 47'N	Day's run:          168 nm             -  nm  =  168 nm
			86° 48'W	4509  "             245  "
				4677 nm        245 nm
		15.00	DL 31 upper-right corner	At meeting point.
		15.10          15.16		Vessel in sight in the haze.  Distinguished as U-boat hunter type "PC-450".  Crash dive.
				U-boat hunter circles at the diving location.  No depth charges, no S-gear.
		16.00	DL 3130	Ran off at silent running.
		18.00		At some distance each 1 depth charge series.
		18.30
		19.30		Surfaced.
		20.00	DL 3130
		21.02		Incoming Radio Message (1853/278) from Schacht:  "8 May square DB 7885 armed Norwegian "TORNY" sunk.  Würdemann not found at meeting point to now.  Going 10 nm to the west due to air."
				Headed for new meeting point.  Schacht is not found up to the beginning of darkness.
		09.05.42	Gulf of Mexico
		00.00	DL 3120
			NNE 1-2, Sea 1-2, clear, Vis. changing
		04.00	DB 7870	Surfaced transit to the Mississippi Delta.
		08.00	DB 7750
		12.00	DB 7720      27° 37'N	Day's run:          130 nm             5  nm  =  135 nm
			87° 50'W	4677  "             245  "
				4807 nm        250 nm
		16.00	DA 9690
		16.32		Incoming Radio Message (1525/298):
				"1.)  . . . . . . . .
				2.)  . . . . . . . .
				3.)  Folkers report successes, Würdemann situation.
				4.)  . . . . . . . . "
		18.25		Incoming Radio Message (1411/201) from Schacht:  "Würdemann not met.  Because about 18.00 hours distant detonations as from torpedoes, 18.33 hours close in succession detonations as from aircraft bombs heard, report position.  Positioned 10 nm west of meeting point."
		20.00	DA 9650
		20.30 - 22.03		Test dive.

	Sun and Moon Data 08.05.42
	Sun and Moon Data 09.05.42

	- 14 -
		10.05.42	Gulf of Mexico
		00.00	DA 9620
			NNE 1, smooth Sea, clear, hazy, Vis. changing
		03.53		Incoming Radio Message (0041/206) from Schacht:  "Left meeting point due to heavy air and aircraft bombs. . . . . . . ."
		04.00	DA 9370
		05.00		"Southwest Pass" lighthouse in sight bearing 28°T, 12 nm.  Burns as in peacetime.  Passes quickly out of sight again in the haze.  New course 100° to the South Pass.
		06.59		Shadow in sight bearing 140°T.  - Sending of ready situation report with new meeting point for Schacht was delayed -
				Was distinguished as an unloaded tanker on a westerly course.
				Maneuvered ahead.
		09.23		Incoming Radio Message (0854/213):  "Würdemann immediately report position."
		09.31		Multiple shot from tubes 5 and 6 with:
				Target speed = 11 knots, target angle = 71°, depth = 2.5 meters.
				Range was substantially underestimated, first after 188 seconds (2800 meters) a hit center.
				Tanker shows little effect and continued on old course at slightly reduced speed.
				He transmits torpedoed with exact position, whereupon "Commander Eighth Naval District" sends U-boat warning to all ships.   - New maneuver ahead. -
		10.57	DA 9288	Multiple shot from tubes 2 and 3 with:
			Mirror smooth Sea	Target speed = 8 knots, target angle = 63°, depth = 3 meters.
				After 70 seconds (1050 meters) one each hit after edge of the bridge and engine room.
				Tanker stops, lists to starboard and settled slowly aft.  Crew goes to the boats. (4).
		11.16		22 rounds 10.5 cm incendiary ammunition shot at low range.  After multiple hits fire started in the fore ship.
		11.37		Ran off from the burning and sinking tanker due to the beginning of twilight.  It goes by the call sign KERX of the U.S.A. tanker "AURORA".  Size 7050 GRT.
		12.00	DA 9250      28° 30'N	Day's run:          194 nm             4  nm  =  198 nm
			89° 57'W	4807  "             250  "
				5001 nm        254 nm
		12.32		Sent Position Short Signal.  Was not acknowledged.
		12.40		Dived.
		16.00	DA 9520
		20.00	DA 9530
		20.20		Surfaced.

Sun and Moon Data 10.05.42

	- 15 -
		11.05.42	Gulf of Mexico
		00.00	DA 9560	Surface transit to new meeting point.
			ENE 1-2, Sea 1, clear, Vis. good
		04.00	DA 9650
		04.59		Outgoing Radio Message (0252/229):
				"1.)  Off and in Providence Channel no traffic.  Lighthouses as in peacetime.
				2.)  Off Miami to Tortugas only on 3 May two independents sighted rounding Carysfort Reef to the north.  Very heavy air by day.
				3.)  In the Gulf up to 9 May nothing seen.  Schacht not found.  At first meeting point forced to submerge by U-boat hunter type "PC".  Position 11 May from 15.00 hours square DB 77 upper-left corner.
				4.)  Still 18 torpedoes, 123 cbm.  High pressure weather.
				5.)  3 May square DM 2650 freighter 3500 GRT sunk, course 345°.  10 May tanker "AURORA" (radio call sign KERX) left in flames, sinking condition in square DA 9288, course 270°."
		08.00	DB 7410
		12.00	DB 7440      27° 57'N	Day's run:          116 nm             6  nm  =  122 nm
			88° 16'W	5001  "             254  "
				5117 nm        260 nm
		16.00	DA 9690	At meeting point.
		17.17	DA 7477 [typo DB]	Crash dive for aircraft.  Recognized too late by the bridge watch.  (out of the sun range 3000 meters)
			Cloudless
		17.18		At depth 30 meters a heavy detonation.  Boat was literally lifted.
				Various failures.  The only lasting failure is that tube 5 is out of service.  (torpedo can not be launched)
		20.00	DA 9690
		12.05.42	Gulf of Mexico
		00.00	DA 9690
			ESE 1, Sea 1, overcast, Vis. good
		03.00		Surfaced.
		04.00	DA 9650
		08.00	DB 7410
		12.00	DB 7440      27° 56'N	Day's run:          107 nm           22  nm  =  129 nm
			88° 20'W	5117  "             260  "
				5224 nm        282 nm
		12.11		Illuminated steamer in sight.
		12.32		Dived before steamer, proves to be the Mexican "DAXADA".  Loaded, unarmed, course 325°.
		13.48		Surfaced.
		13.57		Crash dive for aircraft.
		16.00	DB 7470
		20.00	DB 7470
		22.30		Surfaced.
		23.02		Crash dive for aircraft.

	Sun and Moon Data 11.05.42
	Sun and Moon Data 12.05.42

	- 16 -
		13.05.42	Gulf of Mexico
		00.00	DA 9660
			S 1-2, Sea 1, overcast, Vis. changing, hazy, summer lightening
		03.00		Surfaced.  Left meeting point to go to the mouth of the Mississippi.
		04.00	D 9620
		06.06		Incoming Radio Message (0147/284) from Schacht:
				"1.)  . . . . . . . .
				2.)  Meeting point Würdemann settled."
		07.30		Fiery glow in sight.  Apparently a burning tanker, that Schacht reported as exploded in Radio Message (0147/284).  Fiery glow can be seen about 30 nm.
		08.00	DA 9350
		12.00	DA 9370      28° 36'N	Day's run:           97 nm            28  nm  =  125 nm
			89° 27'W	5224  "             282  "
				5321 nm        310 nm
		12.10		Dived.  - Also submerged by day in the subsequent period due to air, with overcast skies and constant haze.
		16.00	DA 9530
		20.00	DA 9530	Multiple freighters and tankers with east or west courses in sight.  In the prevailing haze ships first come in sight at low range with mostly unfavorable target angles.  Sound gear reported propeller sounds before sighting in only one case.
		21.38	DA 9536	Multiple shot from tubes 1 and 4 on loaded tanker on easterly course with:
				Target speed = 11 knots, target angle = 82°, depth 4 meters.
				After 120 seconds (1800 meters) hit in the engine room.  Tanker settled quickly by the stern and sank after 7 minutes.
				Appearance:  Older normal tanker (according to Gröner) about 125 meters long.  Estimated size 6000 GRT.
				After sinking the tanker until surfacing nothing further seen or heard.
		14.05.42	Gulf of Mexico
		00.00	DA 9530
			W 1, overcast, Vis. changing, hazy, marine phosphorescence
		03.15		Surfaced.
		04.00	DA 9520
		05.15		Shadow in sight bearing 260°T.  Distinguished as a loaded tanker on an easterly course.
				Maneuvered ahead.
		05.46	DA 9543	Multiple shot from tubes 2 and 3 with:
			Vis. medium, heavy marine phosphorescence, smooth Sea	Target speed = 11 knots, target angle = 65°, depth 4 meters.
				After each 40 seconds (600 meters) hit in the bow only slight fiery glow and hit center.  After a heavy detonation burning oil pours on the sea with a rush.

	Sun and Moon Data 13.05.42
	Sun and Moon Data 14.05.42

	- 17 -
		continued
		14.05.42		Got clear of the burning oil with AK and hard rudder.
		05.58		Due to bright as day illumination dived to run off.
		07.23		Surfaced.  Tanker is a large torch.  Fiery glow is still distinguished at 25 nm.  Sinking of the tanker is certain.
				Appearance:  Older tanker, bridge far forward, 2 masts, no king posts, 135 meters long.  Estimated size:  7000 GRT.
		08.00	DA 9520
		12.00	DA 9550      28° 11'N	Day's run:           36 nm            36  nm  =  84 nm
			90° 04'W	5321  "             310  "
				5369 nm        346 nm
		12.22		Dived.
		16.00	DA 9550
		20.00	DA 9550
		15.05.42	Gulf of Mexico
		00.00	DA 9580
			SSE 1-2, Sea 1, overcast, dark low visibility night
		03.13		Surfaced.  - Set off from the coast. -
		04.00	DA 9580
		04.30 - 09.00		Down loaded 6 over deck torpedoes.  No difficulties.
		08.00	DA 9540
		12.00	DA 9550      28° 03'N	Day's run:            61 nm            25 nm  =  65 nm
			90° 10'W	5369  "             346  "
				5430 nm        371 nm
		12.25		Dived.
		16.00	DA 9550
		20.00	DA 9560	At periscope depth nothing seen or heard.
		16.05.42	Gulf of Mexico
		00.00	DA 9530
			NE 2-3, Sea 1, overcast, hazy, dark night, marine phosphorescence
		03.15		Surfaced.
		04.00	DA 9530
		05.41		Incoming Radio Message (1702/15/283):  "Thurmann report situation as soon as possible.  Würdemann send short situation report tonight."
		08.44		Sent Radio Message (0735/15/283):
				"1.)  Situation like Schacht.
				2.)  13 May square DA 9536 loaded normal tanker 6000 GRT sunk.  14 May loaded tanker 7000 GRT naval square 9534 left as a torch.  Sinking certain.  Both course east."
		09.59	DA 9288	Shadow in sight bearing 150°T.  Maneuvered ahead.  Distinguished as an unloaded tanker on a westerly course.

	Sun and Moon Data 14.05.42
	Sun and Moon Data 15.05.42
	Sun and Moon Data 16.05.42

	- 18 -
		continued
		16.05.42
		10.43		Due to continuously decreasing water depth (less than 20 meters) initiated attack early.
		10.45		Second vessel in sight in the haze abeam with westerly course.  Because this second steamer is already close by I can only run on attack course at low speed due to the heavy marine phosphorescence  Therefore very large shooting range.  (about 3500 meters).
		10.49	DA 9521	Multiple shot from tube 2 and 3 with:
				Target speed = 12 knots, target angle = 87°, depth = 3.5 meters.
				Both torpedoes probably passed ahead.  The target was later determined to be the tanker "DAYLIGHT" from radio transmission.
		10.55		After missing initiated attack on the second tanker.  Also an older tanker of about 8000 GRT.  (length 140 meters)
		11.00		Further shadow in sight ahead to port.  Also an unloaded tanker on a westerly course.
		11.01	DA 9521	Single shot from tube 6 with:
				Target speed = 11 knots, target angle = 75°, depth 3 meters.
				After 74 seconds (1000 meters) hit in fore ship.  Slight fiery glow, little effect.  Tanker remains lying stopped for a minute and then runs at reduced speed towards land.  During the attack the third tanker passes out of sight.
		11.10	DA 9521	Multiple shot from tubes 1 and 4 on the 3rd target with:
				Target speed = 11 knots, target angle = 72°, depth 3 meters.
				Both torpedoes hit after 55 seconds (1000 meters) after edge of the bridge and engine room.  Tanker remains lying stopped, lists to starboard and burns amidships.
		11.14 - 11.21		24 rounds 10.5 cm from low range.  Nearly all hits in the superstructure or in the water line.
		11.21		Ran off due to the beginning of twilight.  Tanker strongly down by the stern with a steadily increasing list.  After dawn at periscope depth at medium range nothing more is seen.  Tanker sunk.
				Appearance:  Modern, about 150 meter long tanker with raked bow, cruiser stern and 1 masts.  Smokestack not distinguished.  Estimated size:  9000 GRT.
		12.00	DA 9520       28° 24'N	Day's run:            68 nm            26 nm  =  94 nm
			90° 16'W	5430  "             371  "
				5498 nm        397 nm
		12.15		Dived.
		16.00	DA 9520
		20.00	DA 9550	Nothing seen or heard.

Sun and Moon Data 16.05.42

	- 19 -
		17.05.42	Gulf of Mexico
		00.00	DA 9550
			SE 1-2, Sea 1, overcast, hazy, Vis. medium
		03.21		Surfaced.
		03.30		Shadow in sight bearing 180°T.  Recognized as a loaded tanker on course 110°.  Maneuvered ahead.
		04.00	DA 9560
		05.35	DA 9661	Multiple shot from tubes 2 and 3 with:
				Target speed = 11 knots, target angle = 69°, depth = 4 meters.
				After 34 seconds (680 meters) hit at the after edge of the bridge and engine room.
				Tanker sinks very quickly and is under water after 3 minutes.  No boats seen.
				Appearance:  Old construction, bridge far forward, 2 masts, 2 king posts just after the bridge, high smokestack, about 130 meters long.  Estimated size: 7000 GRT.
		07.46		Outgoing Radio Message (0625/231):  "On 16 May square DA 9521 in quick succession:
				1.)  2 miss on tanker "DAYLIGHT" from long range.
				2.)  Hit in foreship on older 8000 ton tanker.  Little effect.  Tanker ran off in shallow water.
				3.)  Modern tanker of 9000 GRT sunk.  All three tankers unloaded with westerly course.  On 17 May square DA 9561 loaded tanker 7000 GRT sunk.  Course 110°.  Still 3 + 4 Atos.  110 cbm.  Missing Serial Nos."
		08.00	DA 9560
		12.00	DA 9280       28° 38'N	Day's run:            79 nm            25 nm  =  104 nm
			89° 56'W	5498  "             397  "
				5577 nm        422 nm
		12.16		Dived.
		16.00	DA 9280
		20.00	DA 9280
		18.05.42	Gulf of Mexico
		00.00	DA 9280
			SE 1, smooth Sea, Vis. medium, hazy
		03.15		Surfaced.
		04.00	DA 9280	Downloaded both of the remaining over deck torpedoes.  Duration 2 hours, no difficulties.
		08.00	DA 9270	Many fishermen in sight.
		12.00	DA 9430       28° 25'N	Day's run:            59 nm            23 nm  =  92 nm
			90° 43'W	5577  "             422  "
				5636 nm        445 nm
		12.20		Dived.
		16.00	DA 9430
		20.00	DA 9430	Unloaded tanker in sight.  Course 300°.  Due to long range did not reach shooting position.

	Sun and Moon Data 17.05.42
	Sun and Moon Data 18.05.42

	- 20 -
		19.05.42	Gulf of Mexico
		00.00	DA 9460
			SSE 1, Sea 1, overcast, hazy, heavy marine phosphorescence
		03.22		Surfaced.
		04.00
		07.50		Ship Shoal Lighted Buoy 2 not seen, apparently is extinguished.  Ran on the 20-meter line on course 290°.
		08.00	DA 9180	Shadow in sight bearing 260°T.
				Maneuvered ahead.
		08.58	DA 9197	Multiple shot from tubes 2 and 3 with:
				Target speed = 11 knots, target angle 67°, depth = 4 meters.
				After each 30 seconds (600 meters) hit center and after ship.
				Steamer settles astern quickly.  Stern rests on the bottom.  (water depth 25-30 meters).  The foreship protrudes from the water up to the upper edge of the bridge but later also sinks.  Several brightly illuminated lifeboats and rafts were set out.
				Steamer was loaded and had course 120°.
				Appearance:  Type "MEXICO"/"MONTEREY" (5236 tons).  Accepted size:  5200 GRT.
				On 21 May an American Shipping Warning was issued with:  Lat. 28° 30'N and Long. 90° 58' 30"W, with the addition that masts protrude from the water.
		10.36		Shadow in sight.  A small freighter on an easterly course running in about 15-20 meters of water. - Can not approach before it gets light. -
		12.00	DA 9430       28° 28'N	Day's run:            75 nm            25 nm  =  100 nm
			90° 56'W	5636  "             445  "
				5711 nm        470 nm
		12.21		Dived.
		16.00	DA 9510
		20.00	DA 9510	Nothing seen and heard.
		20.05.42	Gulf of Mexico
		00.00	DA 9540
			ESE 1, smooth Sea, cloudy, hazy
		03.26		Surfaced.
		04.00	DA 9550
		06.20	DA 9551	Shadow in sight bearing 20°T.
				Loaded tanker on course 90°.  While maneuvering ahead the tanker passes out of sight several times for brief periods.
		07.58	DA 9553	Multiple shots from tubes 2 and 3 with:
				Target speed = 11 knots, target angle = 66°, depth = 4 meters.
				After each 21 seconds (420 meters) hits forward edge of the bridge and center.  Tanker bursts into flames and in just a moment is a torch.

	Sun and Moon Data 19.05.42
	Sun and Moon Data 20.05.42

	- 21 -
		continued
		20.05.42
				A heavy internal explosion follows.  Apparently the tanker is torn apart in the middle.  Foreship capsizes and sinks.  Details can not be distinguished in the bright fiery glare.
		08.00	DA 9550
		08.12		Dived, ran off.
		09.30		Surfaced.   Tanker is sunk.  Burning oil can still be seen for some time on the water.
				Appearance:  Normal tanker about 145 meters.  Estimated size:  8000 GRT.
		12.00	DA 9560       28° 20'N	Day's run:            63 nm            27 nm  =  90 nm
			89° 34'W	5711  "             470  "
				5774 nm        497 nm
		12.13		Dived.
		16.00	DA 9560
		18.07	DA 9561	Propeller sounds heard.
				Freighter recognized on course 270°, 3 island type, about 3000 GRT, unarmed.
		18.23		From range = 800 meters single shot from tube 6 with:
				Target speed = 12 knots, target angle = 79°, depth = 4 meters.
				Miss.  Probably speed overestimated (156 RPM in the sound gear), or under steered.
		18.30	DA 9561	Another freighter in sight on westerly course.  Type "BALFE", about 5000 GRT.  Camouflaged, a cannon on the quarterdeck.
				Multiple shot from tubes 1 and 4 with:
				Target speed = 9 knots, target angle 78°, depth = 3 meters.
				Both missed, unexplained with the low range (600 meters) and the good data.  From sound both torpedoes ran perfectly.
				Therefore all torpedoes expended.  Began return transit.
		20.00	DA 9561
		21.05.42	Gulf of Mexico
		00.00	DA 9640
			SSE 1, smooth Sea, hazy, heavy marine phosphorescence
		03.20		Surfaced.  Transit on the surface.  Course 150°, transit speed 8-9 knots.
		04.00	DA 9670
		06.49 - 07.19		Sent Radio Message (0458/241 and 0517/244):
				"1.)  Off Mississippi continuous heavy independent traffic.  Certainly worthwhile for other boats.  Constant air, however no sea patrol determined.
				2.)  19 May square DA 9197 fast armed passenger freighter type "MEXICO"/"MONTEREY" of 5200 GRT sunk in 25 meters water.  Masts probably out of the water.  In same area in 15 meters water could not get to shooting position on

	Sun and Moon Data 20.05.42
	Sun and Moon Data 21.05.42

	- 22 -
		continued
		21.05.42		a freighter.  Both course east.  20 May square DA 9553 loaded tanker of 8000 GRT sunk.  Course 90°.  Square DA 9561 miss on two freighters on westerly course.
				3.)  Out of torpedoes.  All torpedoes ran perfectly.
				4.)  Return transit.  A total of 8 ships of 52700 GRT plus a tanker of 8000 GRT damaged by a hit in the foreship
				5.)  Still 100 cbm.  High pressure weather, frequent haze.
				6.)  Am missing . . . . . . . ."
		08.00	DA 9930
		09.28	DA 9935	Shadow in sight at low range.  Patrol vessel with small silhouette lying stopped.
				Moved off,  Shadow follows in wake.  In heavy haze moved off in serpentine legs and at 2 x HF.  Patrol vessel passes out of sight and was not seen again.
		12.00	DB 7740       27° 11'N	Day's run:            89 nm            27 nm  =  116 nm
			88° 09'W	5774  "             497  "
				5863 nm        524 nm
		12.02		Dived.  Proceeded submerged,  Course 135°.
		16.00	DB 7740
		20.00	DB 7750
		22.05.42	Gulf of Mexico
		00.00	DB 7750
			Wind calm, mirror smooth Sea, overcast, Vis. changing very heavily, hazy
		03.33		Surfaced.
		04.00	DB 7750	Surface transit on course 135°.
		08.00	DB 7790
		12.00	DB 3130       26° 22'N	Day's run:            79 nm            27 nm  =  106 nm
			86° 49'W	5863  "             524  "
				5942 nm        551 nm
		12.50	DL 3130	Smoke feather in sight.  Avoided to the north, as mast and a high smokestack came out.  Course of the steamer about 315°.  Not reported, because there is still no boat to the west.
		16.00	DL 3130
		17.03		Crash dive for aircraft.
		18.24		Surfaced.
		20.00	DL 3520
		20.58		Crash dive for aircraft.
		22.17		Surfaced.
		23.07		Crash dive for aircraft.  Was probably not noticed by any of the aircraft.

	Sun and Moon Data 21.05.42
	Sun and Moon Data 22.05.42

	- 23 -
		continued
		23.05.42	Gulf of Mexico
		00.00	DL 3640
			Wind calm, duck pond, Vis. very good, clear
		01.12		Surfaced.
		03.00	DL 3681	Shadow in sight ahead.  Probably a U-boat ("U-753"?).  Shows a broad silhouette and returned to old course.  Shadow passes out of sight.  (Dived?)
		04.00	DL 3680
		08.00	DL 3930
		12.00	DM 1750      24° 33'N	Day's run:          167 nm             13 nm  =  180 nm
			84° 14'W	5942  "             551  "
				6109 nm        564 nm
		16.00	DM 1870
		16.05		Crash dive for aircraft.
		18.00		Surfaced.
		20.00	DM 4230
		20.05		Cuban coast comes in sight ahead.  (Distance 40 nm) - Came to new course 80°. -
		23.03		Crash dive for aircraft.
		24.05.42	Florida Straits
		00.00	DM 1980
			ENE Sea 1, clear, Vis. very good, moonshine, marine phosphorescence
		00.10		Surfaced
		03.49		Crash dive for approaching aircraft.  (Range = 800 meters).  No lights, however illuminated cockpit and exhaust.
		04.00	DM 2750
		05.05		Surfaced.
		08.00	DM 2840
		12.00	DM 2860      24° 34'N	Day's run:          193 nm             16 nm  =  209 nm
			80° 26'W	6109  "             564  "
				6302 nm        580 nm
		12.09		Crash dive for aircraft.
		16.00	DM 2940	Proceeded submerged.  Central Florida Straits.
		20.00	DM 2920
		25.05.42	Florida Straits
		00.00	DM 2920
			Wind calm, smooth Sea, overcast, heavy marine phosphorescence, bright moon
		02.19		Surfaced.  - Surface transit on the east coast of the Florida Straits. -
		03.00		Over flown by an aircraft with set lights.
		04.00	DM 2690
		04.30		Crash dive for aircraft.  No lights.  Over flown at an altitude of 100 meters.
		06.00		Surfaced.
		06.48		"Gun Cay" lighthouse (Grand Bahama Island) in sight.
		08.00	DM 2630

	Sun and Moon Data 23.05.42
	Sun and Moon Data 24.05.42
	Sun and Moon Data 25.05.42

	- 24 -
		continued
		25.05.42
		08.25	DM 2638	Shadow in sight bearing 270°T.  Coast Guard boat of the "ARGO" class with low speed on a northerly course.  Moved off to the east.
		08.35		Patrol vessel passes out of sight.
		09.37		"Great Isaac" lighthouse in sight.
		11.53		Dived.
				Proceeded submerged in the center of the Strait.
		12.00	DM 2360      20° 14'N	Day's run:            79 nm             59 nm  =  138 nm
		[typo 26° 14'N]	79° 28'W	6302  "             580  "
				6381 nm        639 nm
		16.00	DM 2330
		20.00	DB 9870
		26.05.42	Florida Straits/north of the Little Bahama Islands
		00.00	DB 9840
			NNE 1, smooth Sea, Vis. good, bright moon, with sunrise heavy haze
		02.39		Surfaced.
		04.00	DB 9810
		06.00		Passed through the Florida Straits. - Moved off from the American coast on NE course. -
		08.00	DB 9550
		12.00	DB 9290      28° 31'N	Day's run:           74 nm             70 nm  =  144 nm
			78° 55'W	6381  "             639  "
				6455 nm        709 nm
		16.00	DB 9380	Diesel-electric transit speed 8-9 knots, course 80°.
		20.00	DB 9360
		27.05.42	Northeast of the Bahama Islands
		00.00	DC 7150
			Wind calm, smooth Sea, clear, hazy, bright moonlit night
		04.00	DC 7130
		08.00	DC 7220
		12.00	DC 4890      29° 26'N	Day's run:         210 nm               - nm  =  210 nm
			75° 06'W	6455  "             709  "
				6665 nm        709 nm
		16.00	DC 4980
		16.35 - 17.14		Test dive and conversion of main ballast and reserve fuel oil tank 2 and 6. [for use as ballast tanks]
		20.00	DC 4990

	Sun and Moon Data 25.05.42
	Sun and Moon Data 26.05.42
	Sun and Moon Data 27.05.42

	- 25 -
		28.05.42	Northeast of the Bahamas
		00.00	DC 5760
			NNE 1, smooth Sea, changing cloudiness, Vis. good, bright moonlit night
		02.49		Steamer in sight bearing 110°T.  Steers 340°.
		03.12		Opened fire on steamer in running artillery combat.  Because of bright moonlit night and smooth Sea opening fire by surprise at low range is not possible.  Opening fire range about 2500 meters.  Freighter turns stern to and returns fire very quickly with a stern cannon (caliber at most 7.5 cm).
				Evasion maneuvers of the steamer result in changing course with continually changing range.
				It is very difficult to observe.  Perfect hits can not be recognized.  Only sudden ceasing of the Radio Message of the freighter (can only still send call sign) and the slow, uncertain, gradually silenced defensive fire are indicative of hits.
		04.25		Steamer remains lying stopped, deep in the water.
		04.22	DC 5844	Steamer sinks on an even keel.
				3 lifeboats are seen, of these one is heavily occupied (35-40 men).
				It was the loaded British freighter "YORKMOOR" bound for New York.  Size:  4457 GRT.
		06.10		Sent Radio Message (0412/280):  "Just now square DC 5844 loaded, armed freighter "YORKMOORE" sunk with artillery, course 340°, for New York, NNE 1, smooth sea, 1022 mb, bright moon."
		08.00	DC 5850	New course 90°.
		12.00	DC 5910      30° 05'N	Day's run:          206 nm              2 nm  =  208 nm
			71° 10'W	6665  "             709  "
				6871 nm        711 nm
		13.03 - 13.36		Test dive.
		16.00	DC 5930
			E 2, Vis. very good, Swell
		20.00	DC 6710
		29.05.42	Southwest of Bermuda
		00.00	DC 6730
			ENE 2, Sea 1-2, changing cloudiness, Vis. good, bright moonlit night
		04.00	DC 6810
		08.00	DC 6830

	Sun and Moon Data 28.05.42
	Sun and Moon Data 29.05.42

	- 26 -
		continued
		29.05.42
		12.00	DC 6920      30° 10'N	Day's run:          193 nm              2 nm  =  195 nm
			67° 27'W	6871  "             711  "
				7064 nm        713 nm
		16.00	DC 6930
		20.00	DD 4720
		30.05.42	South of Bermuda
		00.00	DD 4730
			ENE 2, Sea 1, light Swell, Vis. medium, full moon
		04.00	DD 4820
		08.00	DD 4830
		12.00	DD 4920      30° 16'N	Day's run:          197 nm              - nm  =  197 nm
			65° 40'W	7064  "             713  "
				7261 nm        713 nm
		12.33 - 13.10		Test dive.
		13.15		New course 60°.  Transit speed both diesels HF (11-12 knots).
		16.00	DD 5470
		19.45	Vis. 10 nm	Masts in sight 340°T.
		20.00	DD 5450	Maneuvered ahead at the limit of visibility.
		21.30		Vessel in sight directly ahead in target angle 0°.  Dived.
		23.45		Vessel abeam in target angle 90°, about 10 nm off.
				It is a slow small freighter with 2 large cargo cranes (similar to a small lake steamer).  On the stern there is a small covered cannon.
		31.05.42	South of Bermuda
		00.00	DD 5460
			E 2, Sea 1, light Swell, Vis. very good, bright moonlight
		00.46		Surfaced.
		02.52	DD 5585	Opened fire by surprise at range = 1500 meters.
		03.00		After several hits the steamer remained lying stopped and was apparently abandoned by the crew.  (no Radio Messages determined).
		03.06		The only remaining incendiary ammunition sets the bow of the steamer on fire.
		03.08		Am out of 10.5 cm shells.  (Inventory at opening fire 34 rounds.)
				Gradually fire breaks out over the entire ship.

	Sun and Moon Data 29.05.42
	Sun and Moon Data 30.05.42
	Sun and Moon Data 31.05.42

	- 27 -
		continued
		31.05.42		Because no list or settling is determined, in several approaches at low range fired into the hull with machine gun armament.
		04.00	DD 5585
		04.20		Steamer becomes down by the bow and lists to port.
		04.50		Steamer sinks over the forestem.
				2 lifeboats with a total of 40 men and several unoccupied rafts are seen.
				It is the U.S.A. freighter "FRED W. GREEN" loaded (vehicles among other things) from New York to Freetown on course 125°.  Size:  2292 GRT.
				(From statements of the crew 2756 GRT.)
		05.42		Sent Radio Message (0450/252):  "With last ammunition square DD 5585 loaded armed freighter "FRED W. GREEN" sunk.  Course 125° from New York for Freetown, E 2, Sea 1, 1025 mb."
		08.00	DD 5640
		12.00	DD 5390      31° 28'N	Day's run:          235 nm            10 nm  =  245 nm
			59° 37'W	7261  "             713  "
				7496 nm        723 nm
		15.03 - 15.31		Test dive.
		16.00	DD 6150
		20.00	DD 3870
		01.06.42	East of Bermuda
		00.00	DD 3860
			W 2-3, Sea 2, Swell, overcast, Vis. good, moonlit
		04.00	DD 3920
		08.00	DE 1440
		12.00	DE 1430      33° 48'N	Day's run:          259 nm             2 nm  =  261 nm
			54° 50'W	7496  "             723  "
				7755 nm        725 nm
		16.00	DE 1280
		20.00	DE 1260
		02.06.42	Central Atlantic
		00.00	DE 1250
			Northerly wind, changing strength 1-5, Sea 2, overcast, Vis. good
		04.00	DE 1330
		08.00	CC 8880
		12.00	CC 8860      35° 02'N	Day's run:          240 nm             -  nm  =  240 nm
			51° 13'W	7755  "             725  "
				7995 nm        725 nm

	Sun and Moon Data 31.05.42
	Sun and Moon Data 01.06.42
	Sun and Moon Data 02.06.42

	- 28 -
		continued
		02.06.42
		16.00	CC 8950
		20.00	CC 9710
		22.30		Came to new course 60°.
		03.06.42	Central Atlantic
		00.00	CC 9490	New transit speed 10 knots.
			N 2, Sea 1, changing cloudiness, Vis. over 10 nm
		04.00	CC 9540
		08.00	CC 9560
		12.00	CC 9620      36° 25'N	Day's run:          230 nm             -  nm  =  230 nm
			46° 47'W	7995  "             725  "
				8225 nm        725 nm
		12.47 - 13.23		Test dive.
		16.00	CD 7190
		20.00	CD 7190
		04.06.42	Central Atlantic
		00.00	CD 7250
			NE 2, Sea 1-2, Vis. changing, scattered rain, low Swell
		01.22		Incoming Radio Message (0017/235):  "Return harbors are:. . . . . . .  . Lorient for Würdemann. . . . . . . ."
		04.00	CD 7310
		08.00	CD 7330
		12.00	CD 5790      37° 35'N	Day's run:          239 nm              1  nm  =  240 nm
			41° 55'W	8225  "             725  "
				8464 nm        726 nm
		13.00 - 13.25		Test dive.
		16.00	CD 5870
		20.00	CD 5860
		05.06.42	Central Atlantic
		00.00	CD 5920
			NE 2, Sea 1, overcast, Vis. good
		04.00	CD 6470
		08.00	CD 6460
		12.00	CD 6520      39° 00'N	Day's run:          229 nm              1  nm  =  230 nm
			37° 30'W	8464  "             726  "
				8693 nm        727 nm
		16.00	CD 6290
		20.00	CD 6360

	Sun and Moon Data 02.06.42
	Sun and Moon Data 03.06.42
	Sun and Moon Data 04.06.42
	Sun and Moon Data 05.06.42

	- 29 -
		06.06.42	Southwest of the Azores
		00.00	CE 4150
			NE 3, Sea 2-3, low Swell, overcast, Vis. good, occasional rain
		04.00	CE 4210
		08.00	CE 1890	Switched to Ireland Circuit.
		12.00	CE 1950      40° 25'N	Day's run:          235 nm              -  nm  =  235 nm
			32° 35'W	8693  "             727  "
				8928 nm        727 nm
		12.00		Incoming Radio Message (1050/104):  "Transfer of gyro compass globe from Würdemann to Piening intended.  For this purpose 8 June 11.00 hours meeting point in square WC 8465.  If up to 14.00 there is no meeting, Piening send bearing signals.  Long-term escort is not possible.  Piening immediately switch to Ireland Circuit."
		16.00	CE 2740
		20.00	CE 2730
		07.06.42	Azores
		00.00	CE 2580
			NE 3, Sea 2-3, long Swell, rain showers, Vis. up to 10 nm
		02.20		Outgoing Radio Message (0123/109):  "To 10. U-Flottille.  On 11 May tube 5 out of service from aircraft bomb.  Center section probably buckled.  Tube center section kept clear."
		04.00	CE 2590
		08.00	CE 2650
		12.00	CE 3440      41° 36'N	Day's run:          221 nm              -  nm  =  221 nm
			28° 10'W	8928  "             727  "
				9149 nm        727 nm
		16.00	CE 3430
		20.00	CE 3270
		21.00 - 23.00		Dived. - Depth control training. -
		08.06.42	North of the Azores
		00.00	CE 3240
			NE 3, Sea 2, long Swell, overcast, Vis. medium
		04.00	CE 3270
		08.00	CE 3430
		09.00	CE 3465	By dead reckoning at the ordered meeting point with "U-155".  - Not found. -
		12.00	CE 3460      41° 35'N	Day's run:          156 nm              5  nm  =  161 nm
			27° 23'W	9149  "             727  "
				9305 nm        732 nm

	Sun and Moon Data 06.06.42
	Sun and Moon Data 07.06.42
	Sun and Moon Data 08.06.42

	- 30 -
		continued
		08.06.42
		14.15		First bearing signal received from "U-155" in 20°T.  Further signals head at half hour intervals.
		16.00	CE 3430
		17.19		"U-155" in sight ahead.
		18.07		Transfer of gyro compass globe completed.
		00.50		Transit speed 10 knots.  Course 75°.  "U-155" stays with until the beginning of darkness, then runs by at higher speed and passes out of sight.
		09.06.42	Northeast of the Azores
		00.00	CE 3290
			NE 3-4, Sea 3, long Swell, Vis. changing, rain showers
		04.00	CE 3350
		08.00	CE 3360
		12.00	CE 1250      42° 25'N	Day's run:          203 nm              -  nm  =  203 nm
			24°00'W	9305  "             732  "
				9508 nm        732 nm
		16.00	CF 1310
		20.00	CF 1330
		10.06.42	Northeast of the Azores
		00.00	BE 7970
			NNE 3, Sea 2-3, medium Swell, overcast, Vis. good, rain shower
		04.00	BE 7990
		08.00	BE 8780
		12.00	CE 8760      43° 15'N	Day's run:          215 nm              -  nm  =  215 nm
			19° 13 'W	9508  "             732  "
				9723 nm        732 nm
		16.00	BE 8850
		20.00	BE 8910
		11.06.42	West of Finisterre
		00.00	BE 8920
			NNW 3, Sea 3, long Swell, Vis. changing, rain shower
		04.00	BE 9710
		08.00	BE 9480
		08.35 - 09.05		Test dive.

	Sun and Moon Data 08.06.42
	Sun and Moon Data 09.06.42
	Sun and Moon Data 10.06.42
	Sun and Moon Data 11.06.42

	- 31 -
		continued
		11.06.42
		11.18		Incoming Radio Message (1059/145):  "To Löwe, Würdemann, Piening.  Immediately go at highest speed to Schuch.  All boats switch to Coastal Circuit and remain there.
		11.55		Switched to Coastal Circuit.
				New course 100°.  Speed higher than 10 knots not possible due to fuel.
		12.00	BE 9570      43° 55'N	Day's run:          212 nm              2  nm  =  215 nm
			14° 25 'W	9723  "             732  "
				9935 nm        734 nm
		16.00	BE 9580
		20.00	BE 9590
		21.54		Crash dive for aircraft.
		23.24		Surfaced.
		12.06.42	Western Bay of Biscay
		00.00	BE 9670
			NW 3-4, Sea 3, high Swell, Vis. up to 5 nm, rain showers
		02.36		Incoming Radio Message (0146/66):
				"1.)  Würdemann, Löwe, Piening, Bigalk head for naval square BE 9945.  Search for Schuch after it gets light is intended.  More to follow.
				2.)  Expect increased air danger.
				3.)  Bigalk immediately switch Coastal Circuit."
		04.00	BE 9690
		04.18		Incoming Radio Message (0331/170):
				"1.)  Schuch enter even if escort vessels are not present.
				2.)  Würdemann . . . . . . . . continue outbound or inbound transit."
		06.28		Dived.  - Proceeded submerged. -
		08.00	BF 7470
		12.00	BE 7440      44° 01'N	Day's run:          158 nm             20  nm  =  178 nm
			11° 01 'W	9935  "             734  "
				10093 nm        754 nm
		14.05 - 14.15		Surfaced.
		16.00	BF 7450
		20.00	BF 7450
		23.11		Surfaced. - Proceeded on the surface. -
		13.06.42	Bay of Biscay
		00.00	BF 7460
			W 2-3, Sea 1-2, medium Swell, Vis. medium, marine phosphorescence
		04.00	BF 7520
		07.04		Dived.  - Proceeded submerged. -
		08.00	BF 7870

	Sun and Moon Data 11.06.42
	Sun and Moon Data 12.06.42
	Sun and Moon Data 13.06.42

	-32 -
		continued
		13.06.42
		12.00	BF 7870      44° 52'N	Day's run:            73 nm             45  nm  =  118 nm
			8° 51'W	10093  "             754  "
				10166 nm        799 nm
		13.00 - 14.14		Surfaced.
		16.00	BF 7350
		20.00	BF 7360
		23.15		Surfaced.  - Proceeded on the surface. -
		23.51		Sent Short Signal:  "Position 30 hours off return harbor."
		14.06.42	Bay of Biscay
		00.00	BF 8110
			SSE 1, Sea 1, overcast, rain showers, bright marine phosphorescence
		00.57		Incoming Radio Message (0031/100):  "Entry route for Würdemann is Bogenlampe."
		04.00	BF 5740
		06.15		Dived.  - Proceeded submerged. -
		08.00	BF 5720
		12.00	BF 5720      46° 31'N	Day's run:          104 nm             46  nm  =  150 nm
			5° 58 'W	10166  "             799  "
				10270 nm        845 nm
		16.00	BF 5490
		20.00	BF 5490
		20.30 - 20.40		Surfaced.  Sent Short Signal:  "Request bearing signals from Lorient Transmitter I."
		23.25		Surfaced.  - Proceeded on the surface. -
		23.43		Incoming Radio Message (2110/7):  "Lorient Bearing Transmitter I runs for U-506 from 21.00 hours to dawn."
		15.06.42
		00.00	N 1, Sea 0-1, overcast, rain showers, Vis. changing	Reached the 200-meter line.  Various fishermen avoided.
		02.35		Incoming Radio Message (1037/14/3):  "Escort positioned on 15 June at 06.00 hours at Point Lucie 2."
				10. U-Flottille.
		04.00		At Point "Bogen".  - Transit on entry route "Bogenlampe". -
		05.30		Ile de Groix in sight.
		06.04	Point Lucie 2	Joined Sperrbrecher.
		07.20		Released escort.
		07.40		Made fast Lorient Berth A 1.

	Sun and Moon Data 13.06.42
	Sun and Moon Data 14.06.42
	Sun and Moon Data 15.06.42

	- 33 -
				Day's run:          102 nm             32  nm  =  134 nm
				10270  "             845  "
				10372 nm        877 nm
				10372 nm
				877   "
				Total:      11249 nm
				Total results:
				Damaged:
				1 tanker of 8000 GRT.
				(Unloaded tanker hit in the foreship showed only slight effect and is probably entered port without difficulty.)
				Sunk:
				6 tankers                      of 44050 GRT
				1 passenger freighter           5200   "
				3 freighters                   of  10249   "
				10 ships                         of   59499 GRT.
				All tonnage estimates for vessels sunk with unknown names were carefully determined. They were made mainly from the length of the vessel, which in most cases at low shooting ranges could be determined quite accurately and consistently.
				General Remarks:
				In the actual operations area the patrol took place in a favorable period of time (no moon) and was carried out under particularly favorable conditions.  It was - together with "U-507" - the first appearance of U-boats in the Gulf of Mexico on the busy traffic routes to and from the Mississippi.  Apparently it came as a surprise to the enemy and hit him unprepared.  Only in this way can one explain the the lack of
				a)  Systematic sea patrol.
				b)  Convoy measures ( in the relatively small sea area this would be feasible in shallow water with a few escort vessels).
				c)  Instructions (course, zig zag schemes etc.) to merchant shipping.

	- 34 -
				The ships proceed independently - sometimes in groups - unescorted, mostly unarmed, without camouflage, without zig zagging, steering normal peacetime courses.
				The fact that this "peacetime operation" continued to run unstopped, even after the almost daily sinkings of valuable ships, underlines the vital importance of this traffic route for the enemy.
				Undoubtedly boats will find aggravating circumstances in the future and can expect strong air and sea surveillance to be in place off the mouth [of the Mississippi].
				Complicating operations and attack was the constant heavy haze associated with an indistinct horizon, mostly smooth sea and strong marine phosphorescence.
				The very young, mostly untraveled crew is well proven. Conveniently the long, quiet time of the outbound transit has an impact on this, training could be encouraged and the crew brought to a certain level of qualification.  A decline in performance from the long submerged cruises (about 2 weeks at a minimum temperature of 35°C in the boat up to 16 hours per day) was not observed.
				Kptlt. und Kommandant

	Comments of the Befehlshabers der Unterseeboote
	to the Kriegstagebuch of "U-506" from 26.3 - 15.6.1942.
	The U-boats and crews participating in the Neuland operation were offered numerous chances for success. The Kommandant exploited them well to the last shell and achieved a very beautiful success.  Very good shooting performance in torpedo and artillery firing.
		Signed in draft: D  ö  n  i   t   z .
		For correctness:
		Ob.Leutnant z.S. and Adjutant i.V.

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