U-66 - 4th War Patrol

Translation by Jerry Mason with the help of Robert Derencin and Andi Forster

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
18 Jan 42	08.33	35°45'N, 74°14'W	ALLAN JACKSON	6,635	American
19 Jan 42	06.43	34°57'N, 72°46'W	LADY HAWKINS	7,988	Canadian
22 Jan 42	12.39	34°03'N, 75°18'W	OLYMPIC	5,335	Panamanian
24 Jan 42	02.40	35°09'N, 75°18'W	EMPIRE GEM	8,139	British
24 Jan 42	02.43 - 03.24	35°09'N, 75°18'W	VENORE	8,017	American
			Total = 36,114
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  "
				= = = = = = = = = = = = = = =
				4th War Patrol
				Beginning:  10. November 1941,
				Ending:       10 February    1942.
			Kommandant:	Korvettenkapitän    Z  a  p  p  .
			Distribution:	2 x O.K.M.  SKL.U. 1 x B.d.U. 1 x 2.A.d.Uboote 1 x 2.U.-Flottille Original boat.
		Drafted 10.02. 5x
		2.Ufl.
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
		1941
		10.11.41	Lorient	Provisions offload.
		11.11.41	"	Torpedo and munitions offload.
		12.11. - 14.11.41	"	Bunker S 1.
		15.11.41	"	Bunker S 1, cannon offload.
		16.11. - 21.11.41	"	Bunker S 1.
		22.11.41	"	Shifted to dock 2, dry docked.
		23.11. - 12.12.41	"	Dock 2.
		13.12.41	"	Undocked, shifted to Bunker S 2.
		14.12.41	"	Bunker.
		15.12.41	"	Fuel oil loading.
		16.12.41	"	Bunker.
		17.12.41	"	Bunker S 4, pier side trial.
		18.12.41	"	Munitions loading.
		19.12.41	"	Overcharging from land.
		20.12.41	"	Shifted to A 3.
		21.12.41	"	Torpedo and cannon loading.
		22.12.41	"	Provisions loading.
		23.12.41	"	Sea trial and diving test.
		24.12.41	"	Degaussing, trim test, fresh provisions loading.
		25.12.41
		13.19	Lorient	Put to sea.
		13.30		Taken in convoy.
		14.20		Released from convoy, taken under escort by Sperrbrecher.
		15.05	Point L 2	Released by Speerbrecher, departed on course 145°T.
		16.42		Aircraft in sight, range = 4000 meters.
		17.18		Dived.
		18.07		Surfaced.
		20.40		Steamer light in sight.
		20.52		Steamer light out of sight.
		22.12		Steamer light in sight.
		23.08		Steamer light out of sight.
		24.00	BF 5826	Course 270°.
			NW 2, long Swell, overcast

Sun and Moon Data 25.12.41

	- 2 -
		26.12.41
		04.00	BF 5734
		08.00	BF 4934
		09.30		Dived.
		09.47		Surfaced.
		09.54		Dived.
		12.00	BF 4915	Day's run:  Surfaced     = 308 nm
				Submerged =      5 nm = 313 nm.
		16.00	BF 4911
		19.00		Surfaced.
		20.00	BF 4834
		24.00	BF 4736
			NNE 1-2, Swell, overcast
		27.12.41
		04.00	BF 4711
		08.00	BE 6924
		09.45		Dived.
		12.00	BE 6911	Day's run:  Surfaced     = 177 nm
				Submerged =  15.5 nm = 192.5 nm.
		16.00	BE 6836
		19.45		Surfaced.
		20.00	BE 6832
		21.10		To B.d.U.:  My position is square BE 68.
				U-66.
		22.03		From B.d.U.:
				Zapp reports position by Short Signal from naval square BE 68.
		24.00	BE 6814
			WNW 1, Swell, overcast
		28.12.41
		04.00	BE 6715
		08.00	BE 5936
		11.06		Test dive.
		11.41		Surfaced.
		12.00	BE 5925	Day's run:  Surfaced     = 138 nm
			SW 1-2, Swell, overcast	Submerged =    18 nm = 156 nm.
		16.00	BE 5836
		20.00	BE 5825
		21.30		Steamer lights in sight ahead bearing 275°T.
		22.30		"          "   out of sight astern bearing 190°T.
		24.00	BE 5548
			SE 2-3, Sea 2, overcast
		29.12.41
		04.00	BE 5462
		08.00	BE 5451
		12.00	BE 4662	Day's run:  Surfaced = 217 nm.
			SSE 6-7, Sea 6, overcast

	Sun and Moon Data 26.12.41
	Sun and Moon Data 27.12.41
	Sun and Moon Data 28.12.41
	Sun and Moon Data 29.12.41

	- 3 -
		continued
		29.12.41
		13.00		Dived.
		16.00	BE 4652
		16.30		Surfaced.
		18.18		From B.d.U.:
				1.)  On 30 December between 01.00 and 05.00 report weather by Short Signal.
				2.)  30 December 08.00 hours switch to Greenland Circuit.
		20.00	BE 4651
		24.00	BE 4562
			SE 7, Sea 6, rain	No weapons use possible due to sea state.
		30.12.41
		01.33		To B.d.U.:  Short Signal weather report:
				47°N, 22°W, 1014 mb, +15°C, Vis. up to 10 nm, wind SE 7-8, overcast, Altocumulus.
				(Was not heard by Control),
		02.33		Short Signal weather report (not heard).
		04.00	BE 4541
		08.00	BE 4451
		12.00	BD 6662	Day's run:  Surfaced     = 64 nm
			SSE 7, Sea 6, rain	Submerged =   7 nm = 71 nm.
		16.00	BD 6661
		20.00	BD 6374
		22.21		From B.d.U.:
				Zapp on 31 December between 01.00 and 05.00 hours report weather by Short Signal cipher.
		24.00	BD 6296
			SSW 8, Sea 6-7, cloudy	Course 260°.
				No weapons use possible due to sea state.
		31.12.41
		02.56		To B.d.U.:
				Short Signal weather report:  47°N, 25°W, 1008 mb, +13°C, Vis. up to 10 nm, SW 7-8, overcast, Altocumulus.
				(Was not heard by Control),
		04.00	BD 6295
		04.06		To B.d.U.:  Short Signal weather report.
		08.00	BD 6299	Course 270°.
		12.00	BD 6298	Day's run:  Surfaced = 82 nm.
			WbyN 6, Sea 6, cloudy
		13.44		Test dive.
		14.40		Surfaced.
		16.00	BD 6289
		20.00	BD 6289
		24.00	BD 6288	No weapons use possible due to sea state.
			WbyS 4, Sea 4, heavy Swell, overcast

	Sun and Moon Data 29.12.41
	Sun and Moon Data 30.12.41
	Sun and Moon Data 31.12.41

	- 4 -
		1942
		01.01.42
		04.00	BD 6287	Course 250°.
		08.00	BD 6278
		11.50		Course 240°.
		12.00	BD 6199	Day's run:  Surfaced     = 81 nm
			SbyW 7, Sea 5-6, rain	Submerged =   3 nm = 84 nm.
		13.05		Dived.
		16.00	BD 6435
		20.00	BD 6427
		20.32		Surfaced.
		24.00	BD 6451	No weapons use possible due to sea state.
			SSW 4, Sea 4, large Swell, overcast
		02.01.42
		04.00	BD 6447
		08.00	BD 5693
		12.00	BD 5698	Day's run:  Surfaced     = 63 nm
			SSW 4-5, Sea 4, large Swell, overcast	Submerged = 12 nm = 75 nm.
		16.00	BD 5697
		20.00	BD 5926
		21.35		From B.d.U.:
				Contrary to supplemental orders to the Operations Order Hardegen and Zapp proceed independently to square CB 60.  Bleichrodt, Kals, Lüth, initially proceed to longitude of naval square BC 5889.
		24.00	BD 5919	No weapons use possible due to sea state.
			W 6, Sea 5-6, overcast
		03.01.42
		04.00	BD 5917
		08.00	BD 5941
		10.00		Course 270°.
		12.00	BD 5866	Day's run:  Surfaced = 77 nm.
			N 4, Sea 4, large Swell, rain showers, overcast
		13.30		Test dive.
		14.10		Surfaced.
		14.30		Course 240°.
		16.00	BD 5883
		20.00	BD 5879
		24.00	BD 8215	No weapons use possible due to sea state.
			NNE 4-5, Sea 4-3, large Swell, overcast

	Sun and Moon Data 01.01.42
	Sun and Moon Data 02.01.42
	Sun and Moon Data 03.01.42

	- 5 -
		04.01.42
		04.00	BD 8139
		08.00	BD 8162
		12.00	BD 8159	Day's run:  Surfaced     = 157 nm
			NNE 4, Sea 3-4, rain, overcast	Submerged =      2 nm = 159 nm.
		13.26		Test dive.
		13.54		Surfaced.
		16.00	BD 8175
		20.00	BD 7632
		24.00	BD 7628
			NNE 4. Sea 3, overcast
		05.01.42
		04.00	BD 7644
		08.00	BD 7585
		09.57		Course 260°.
		12.00	BD 7733	Day's run:  Surfaced     = 174 nm
			NE 6-7, Sea 5-6, overcast	Submerged =      2 nm = 176 nm.
				Course 270°.
		16.00	BD 7722
		20.00	BD 7711	Course 260°.
		24.00	BC 9935	No weapons use possible due to sea state.
			N 6, Sea 5-6, overcast
		06.01.42
		04.00	BC 9924
		08.00	BC 9839
		12.00	BC 9851	Day's run:  Surfaced = 155 nm.
			NbyW 8, Sea 7, cloudy
		13.19		Test dive.
		14.09		Surfaced, course 250°.
		16.00	BC 9847
		17.09		Course 240°.
		20.00	BC 9792
		24.00	BC 9788	No weapons use possible due to sea state.
			NW 5, Sea 5, overcast
		07.01.42
		04.00	CD 1333
		08.00	CD 1325
		11.40		Test dive.
		12.10		Surfaced.
		12.00	CD 1318	Day's run:  Surfaced     = 140 nm
			SSW 4, Sea 3, overcast	Submerged =      4 nm = 144 nm.
		13.57		From B.d.U.:  1337/7/270 (Officer Only).
		16.00	CD 1342

	Sun and Moon Data 04.01.42
	Sun and Moon Data 05.01.42
	Sun and Moon Data 06.01.42
	Sun and Moon Data 07.01.42

	- 6 -
		continued
		07.01.42
		20.00	CD 1342
		20.45		Course 235°.
		24.00	CD 1345	No weapons use possible due to sea state.
			NW 9, Sea 7, overcast
		08.01.42
		04.00	CD 1348
		08.00	CD 1371
		12.00	CD 1375	Course 245°.
			WbyN 5, Sea 4, overcast	Day's run:  Surfaced = 55 nm.
		13.44		Test dive.
		14.28		Surfaced.
		16.00	CD 1297	Course 250°.
		20.00	CD 1513
		24.00	CD 1436
			S 4, Sea 3-4, overcast
		09.01.42
		01.05		Course 240°.
		04.00	CD 1437
		08.00	CD 1452
		11.52		From B.d.U.:
				1.)  Occupy the following attack areas:
				Zapp Attack Area I, in accordance with Secret supplement,  Hardegen II, Folkers III, Bleichrodt IV and V, Kals VI.
				2.)  Folkers, Hardegen, Zapp continue transit [to arrive in attack area] as early as 10 January, B.d.U. expects arrival in attack areas 13 January.
				3.)  Bleichrodt, Kals proceed so as to reach the new attack areas on 13 January.
				4.)  Boats form Group "Paukenschlag".
		12.00	CD 1443	Day's run:  Surfaced     = 99 nm
			W 7, Sea 7, rain	Submerged =    1 nm = 100 nm.
				Boat can not reach position until 13 January because it is still 1300 nm away.
		16.00	CC 3646
		20.00	CC 3659	Course 240°.
		24.00	CC 3676	No weapons use possible due to sea state.
			WbyN 6, Sea 5, overcast

	Sun and Moon Data 07.01.42
	Sun and Moon Data 08.01.42
	Sun and Moon Data 09.01.42

	- 7 -
		10.01.42
		04.00	CC 3599
		03.00		Course 250°.
		08.00	CC 3825
		12.00	CC 3763	Day's run:  Surfaced = 143 nm.
			SSW 2-3, Sea 2, Swell, fair
		13.16		Test dive.
		13.56		Surfaced.
		14.00		Dived.
		14.34		Surfaced.
		16.00	CC 3745
		20.00	CC 2958	Course 260°.
		24.00	CC 2891	At times no weapons use is possible due to sea state.
			SSE 7, Sea 6-7, overcast
		11.01.42
		04.00	CC 2877
		08.00	CC 2779
		12.00	CC 4331	Day's run:  Surfaced     = 188 nm
			SSW 8, Sea 7, overcast	Submerged =      5 nm = 193 nm.
		16.00	CC 4317
		20.00	CC 4228	Course 250°.
		24.00	CC 4244	No weapons use possible due to sea state.
			NNW 4, Sea 4, overcast
		12.01.42
		04.00	CC 4191
		08.00	CC 4178
		12.00	CB 6632	Day's run:  Surfaced = 214 nm.
			SW 3, Sea 2, overcast
		16.00	CB 6618
		20.00	CB 6564
		24.00	CB 6571
			SSW 3, Sea 3-2, overcast
		13.01.42
		04.00	CB 6497
		08.00	CB 5936
		12.00	CB 5951	Day's run:  Surfaced     = 227 nm
			WbyN 5, Sea 4, overcast	Submerged =      1 nm = 228 nm.
		13.29		Test dive.
		14.06		Surfaced.
		16.00	CB 5868
		20.00	CB 5881
		24.00	CB 5795	Use of weapons is only possible at times.
			NW 8, Sea 6-7, rain

	Sun and Moon Data 10.01.42
	Sun and Moon Data 11.01.42
	Sun and Moon Data 12.01.42
	Sun and Moon Data 13.01.42

	- 8 -
		14.01.42
		04.00	CB 5779
		08.00	CB 7333
		12.00	CB 7313	Day's run:  Surfaced     = 148 nm
			NNW 4, Sea 3, cloudy	Submerged =      3 nm = 151 nm.
		13.57	CB 7314	Smoke cloud in sight bearing 310°T, (ahead 60° to starboard).  Turned towards.  Steamer steers northeasterly course.  Due to sea state only HF.
		16.00	CB 4977
		16.10		Smoke cloud out of sight bearing 0°T.  Pursuit broken off due to sea state and to great fuel consumption.
		20.00	CB 7225
		24.00	CB 7465	No weapons use possible due to sea state.
			WSW 3, Sea 3, overcast
		15.01.42
		04.00	CB 7148
		08.00	CA 9397
		10.26		From B.d.U.:
				To Ziethen and Paukenschlag:
				When there is another reason to transmit, report fuel inventory.
		12.00	CA 9536	Day's run:  Surfaced = 194 nm.
			WbyN 7, Sea 6, rain
		13.12		Dived.  Proceeded submerged.
		16.00	CA 9538
		20.00	CA 9529
		24.00	CA 9549
		16.01.42
		00.04		Surfaced.
		04.00	CA 9547
		08.00	CA 9495
		12.00	CA 5713	Day's run:  Surfaced     = 80 nm
			WbyN 4, Sea 3-4, overcast	Submerged = 22 nm = 102 nm.
		13.17		Dived.  Proceeded submerged.
		16.00	CA 9715
		20.00	CA 9717
		24.00	CA 8939

	Sun and Moon Data 14.01.42
	Sun and Moon Data 15.01.42
	Sun and Moon Data 16.01.42

	- 9 -
		17.01.42
		00.13		Surfaced, course 270°.
		04.00	CA 8953
		08.00	CA 8957
		12.00	CA 8869	Day's run:  Surfaced     = 84 nm
			NW 2, Sea 2, overcast	Submerged = 22 nm = 106 nm.
		11.38		From B.d.U.:
				. . . . . . . .
				4.)  Independent shifting of attack areas is authorized for boats of Group Paukenschlag, if traffic or defense necessitates.
				. . . . . . . .
		13.33		Dived.  Proceeded submerged.
		13.50		Course 250°.
		16.00	CA 8865
		20.00	CA 8867
		24.00	CA 8858
		18.01.42
		00.30		Surfaced.
		03.00		Course 260°.
		04.00	CA 8793
		05.30	CA 8785	Shadow in sight ahead to port bearing 240°T.  Maneuvered ahead.
				It is a tanker with 3 masts, small medium height smoke stack distinguished.  Length about 170 meters.  Tanker is fully loaded, steers about 350°, probably to the Winter Quarter Lightship.  Tanker does not zig zag.
		08.00	CA 8497
		08.33	CA 8487	Bow shot, target angle 100°, range 1000 meters (estimated), 11 knots.
				Bow shot, target angle 100°, range 1000 meters (estimated), 11 knots.
		08.45		After 122 seconds two detonations.  Hit forward 40 meters and amidships.  Tanker burns after the first hit and breaks at the after edge of the bridge.  Foreship sinks after 5 minutes, aftership after 10 minutes.
				Tanker could be as big as 12000 GRT.  Estimated at 9200 GRT.
				Fiery glow from burning oil  was still visible two hours later.
		10.07 10.40	CA 8725	Shadow in sight abeam to port 60°T.  Steamer zig zagging heavily and disappears in a cloud bank.  It was believed that this steamer transmitted at 10.36 hours on 600 meters the following Radio Message:
				(To Baltimore):
				Light flash and subsequent red glow lasting 45 minutes from approximate position Cape Hatteras 249° carre . . . . . . . . 312°  . . . . . . . .
				ELISABETH LENSEN (London)

	Sun and Moon Data 17.01.42
	Sun and Moon Data 18.01.42

	- 10 -
		continued
		18.01.42
		12.00	CA 8727	Day's run:  Surfaced     = 185 nm
			SSW 2-3, Swell, overcast	Submerged =   17 nm = 202 nm.
		12.55		Dived to proceed submerged.
		15.30		Two detonations to the east.
		16.00	CA 8755
		20.00	CA 8782
		21.00		Propeller sounds ahead bearing 180°T.  Went to periscope depth and put ahead.  2 aircraft observed through the periscope.
		22.20		Sounds suddenly ceased.
				Again went deep.
		24.00	CA 8725
		19.01.42
		00.38		Surfaced.
		00.54		Dived.
		01.12		Surfaced.
		01.13	CA 8783	Shadow in sight bearing 0°T (abeam to port).  Large freighter and passenger steamer, about 150 meters long, high broad superstructure, medium high smoke stack, 2 masts, (had resemblance to MEERSBURG).  Steamer zig zags irregularly approximately 70° around general course 80-90°.
				Maneuvered ahead.
				Zig zags about 40° with southeasterly course, then moves off to the north.
				Zigzags about 40° with northeasterly course, therefore like a sine wave about the general course.
		04.00	CA 8793
		06.20	CA 8894	Steamer lights and then afterwards illuminated hull in sight bearing 180°T.
		06.43		Closed to 2000 meters, target angle 110°.  Shortly before firing the steamer zigzags away 40°.  Maneuvered ahead again at AK.
		07.40		Lights out of sight.  [Lights of the neutral sighted at 06.20 hours]
		07.43	CA 8896	Shortly before firing the steamer turned away, shot with updated target angle:
				Stern shot, target angle 80°, speed 14 knots, range 1000 meters,
				Stern shot, target angle 85°, speed 14 knots, range 1000 meters.
				2 detonations after 80 seconds (1200 meters).
				Steamer sinks after about 30 minutes.  Size 9000-11000 GRT.  Estimated tonnage:  9000 GRT.
				Pursuit of the steamer running at 14 knots was especially difficult due to heavy sparking from the exhaust.  The boat

	Sun and Moon Data 18.01.42
	Sun and Moon Data 19.01.42

	- 11 -
		continued
		19.01.42		had to keep a great distance.
		08.00	CA 8896
		12.00	CA 8894	Day's run:  Surfaced     = 116 nm
			SE 3, Sea 2, overcast	Submerged =   25 nm = 141 nm.
		12.20		A light in sight astern bearing 80°T.
		12.25		Light out of sight astern.
		12.50		Dived.
		16.00	CA 8886
		20.00	CA 8885
		24.00	CA 8884
		20.01.42
		00.36		Surfaced.
		04.00	CA 8844
		05.14		From B.d.U.:
				Bleichrodt report situation, Folkers, Zapp report situation if detected.
		08.00	DC 1333
		12.00	DC 1342	Day's run:  Surfaced     = 66 nm
			W 5, Sea 4-5, cloudy	Submerged =  24 nm = 90 nm.
		13.08		Dived.
		16.00	DC 1337
		20.00	DC 1361
		24.00	DC 1356
		21.01.42
		00.54		Surfaced.
		03.31		From B.d.U.:
				Zapp, Bleichrodt and Folkers immediately report situation, position and successes.
		04.00	DC 1349
		05.25		To B.d.U.:
				First in operations area on 18 January, all darkened.  Otherwise situation as with Hardegen.  18000 GRT, 135 cbm, Serial No. 42, 44, 90 missing.  DC 13.
				Zapp.
		08.00	DC 1355
		12.00	DC 1363	Day's run:  Surfaced     = 99 nm
			NE 3, Sea 2, overcast	Submerged =  24 nm = 123 nm.
				After sinking steamer steered easterly course because traffic was suspected in this square.
		12.13		From B.d.U.: 1021/21/234 Officer Only.
				Based on Radio Message closed land up to the 200-meter limit.
		13.25		Dived.  Course 180°.
		16.00	DC 2142
		20.00	DC 2145

	Sun and Moon Data 19.01.42
	Sun and Moon Data 20.01.42
	Sun and Moon Data 21.01.42

	- 12 -
		continued
		21.01.42
		21.05		Sound bearing 300°T.
		23.34		Surfaced, nothing to see.
		23.36		Dived.
		23.45		Last sound bearing 226°T.
		24.00	DC 2148
		22.01.42
		00.30		Surfaced.
		00.58		Course 250°.
		04.00	DC 2172
		0x.00		Course 270°.
		08.00	DC 1620
		11.45	DC 1535	A light in sight ahead to port bearing 250°T.
				Maneuvered ahead.
		12.00	DC 1298	Day's run:  Surfaced     = 114 nm
			NW 4, Sea 3, overcast	Submerged =   22 nm = 136 nm.
				Steamer was distinguished as a freighter.  Had apparently illuminated upper deck lights from the engine room.  Length about 140 meters, steers straight course, about 335°, speed 8 knots.
		12.39	DC 1295	Stern shot, target angle 100°, speed 8 knots, range = 800 meters.
				Stern shot, target angle 100°, speed 8 knots, range = 800 meters
				After 36 seconds (540 meters) 2 detonations.
				Hit forward, hit amidships.
				Steamer breaks in the center and sinks within one minute.
				Steamer was about 140 meters long and was estimated at 7500 GRT.
		12.57		Course 270°.
		13.14		Dived.
		16.00	DC 1322
		20.00	DC 1322
		22.45		Sound bearing 110°T.
				Through the periscope nothing to see.
		24.00	DC 1321
		23.01.42
		01.17		Surfaced.
		03.13	DC 1262	Narrow, low shadow in sight astern.
		03.20		Shadow out of sight.  Perhaps a patrol vessel.
		03.46		Dived for sound bearing.
				No sound bearings.
		04.00	DC 1239
		04.30		Surfaced.
		08.00	DC 1253

	Sun and Moon Data 21.01.42
	Sun and Moon Data 22.01.42
	Sun and Moon Data 23.01.42

	- 13 -
		continued
		23.01.42
		08.13	DC 1253	Faint light in sight bearing 150°T.
				Turned towards.
		08.24		Light out of sight.
		12.00	DC 1254	Day's run:  Surfaced     = 77 nm
			NW 3, Sea 2, cloudy	Submerged = 25 nm = 102 nm.
		12.43	DC 1254	Light in sight ahead to starboard bearing 40°T.  Attempted to maneuver ahead.  General course 345°.  Steamer runs at high speed, could not close at 14 knots.
		13.12		Dived due to brightness.
		13.14		Course 180°.
		13.30		Sound bearing lost.
		16.00	DC 1254
		20.00	DC 1252
		21.50	DC 1234	Sound bearing 160°T.
				At periscope depth, a steamer passed at range 600 meters at target angle 110°.
		24.00	DC 1229
		24.01.42
		00.54		Surfaced.  Steamer is still in sight.  Steers about 340°.
				Maneuvered ahead.
				Distinguished as an ore steamer.  Bridge forward, several small masts on the over deck.  Steamer zig zags about 40°.
		01.40		40° to starboard a shadow in sight.  Shifts from starboard ahead of the bow and proceeds on approximately the same course as the ore steamer.  Was distinguished as a tanker.
				While maneuvering ahead the tanker sets a faint stern light, likewise the ore steamer sets side lights.  Because it was improbable that both steamboats could be shot at the same moment, decision: attack the ore steamer first, because it appeared longer.  Tanker suddenly changes course and runs ahead of our tubes, so that we must shoot immediately.
		02.40	CA 7968	Bow shot, target angle 80°, range = 500 meters, speed 7 knots,
				Bow shot, target angle 80°, range = 500 meters, speed 7 knots.
				After 40 seconds (600 meters) 2 detonations, hits amidships and aft 40 meters.
				Tanker burns immediately.  Oil burns on the water, so that flames run to within 50 meters of the boat.  Boat must run off somewhat and immediately turn again to shoot.

	Sun and Moon Data 23.01.42
	Sun and Moon Data 24.01.42

	- 14 -
		continued
		24.01.42
		02.43		Bow shot, target angle 100°, range = 1000 meters, speed 9 knots,
				Bow shot, target angle 100°, range = 1000 meters, speed 9 knots.
				Ore steamer turns about 2 minutes after the tanker blew up.
				After 114 seconds (1710 meters) 1 detonation, 1 miss.  Tanker gives SOS, SSS and his name:  CHARLES G. BLACK, 14305 GRT.  Ship's position matches ours.
				Boat was brightly illuminated during the attack on the ore steamer, so that the steamer detected the attack.
				Ore steamer decreased speed and attempts to set itself on the beach.
				Boat can not get close enough because position is not established exactly and on the attack course ahead a bar stood.  Another coup de grace therefore had to be taken at long range.
				Reloaded.
		03.24		Bow shot, target angle 95°, range = 2000 meters, speed 8 knots.
				After 114 seconds (1710 meters) hit amidships.
				Steamer blows off steam, slows and steers in circles.
		03.35		Tanker sunk.
		03.50		Coup de grace on ore steamer.
				Stern shot, target angle 90°, range = 3000 meters, speed 6 knots.
				Missed !
		04.00	CA 7996
		04.05	CA 7968	Ore steamer capsizes to starboard and sinks.
				Lies in about 26 meters of water.
				Agrees in length and appearance with "AMERIKALAND" and "SVEALAND" types.  Was estimated at about 10000 GRT.
		04.10		Course 80°.
		05.56		A shadow in sight bearing 210°T.
				Maneuvered ahead.
				Shadow was distinguished as a tanker.
				Tanker zig zags at 40-50°.
		07.02	DC 1311	Bow shot, target angle 70°, range = 600 meters, speed 10 knots,
				Bow shot, target angle 80°, range = 500 meters, speed 10 knots.
				Missed.
				(After about 5 minutes a detonation was heard.)
				Range was under estimated, boat turned hard away immediately after the 2nd shot and only came clear ahead of the bow of the tanker by 20 meters at 3 x AK.
				New maneuver ahead.

Sun and Moon Data 24.01.42

	- 15 -
		continued
		24.01.42
		07.16		Bow shot, target angle 90°, range = 1300 meters, speed 7 knots
				Missed!
				All 3 shots from this short range are unexplained.
		07.20		Ran off, because there are no more torpedoes below deck.
				Course 90°.
		08.00	DC 1321
		08.10		Course 80°.
		10.00		Course 90°.
		12.00	DC 2111	Day's run:  Surfaced     = 143 nm
			W 5, Sea 4, overcast	Submerged =    22 nm = 165 nm.
		13.03		Dived.
		16.00	CA 8878
		20.00	CA 8879
		24.00	CA 8861
		25.01.42
		00.40		Surfaced.
		03.23		To B.d.U.:
				Up to now 5 ships, 50000 GRT.  Of these 2 tankers, 1 passenger ship, 1 ore steamer.  Heavy traffic from the south for Hatteras.  Only 2 over deck torpedoes, request return transit.  Serial Number 39 of 21 January missing.  Square CA 88.
				Zapp.
		04.00	CA 8927	Course 80°.
		06.31		From B.d.U.:  To Zapp:
			[Square DD 18 = Bermuda]	Begin return transit.  Attempt to move off to download.  Pass by square 18 of the large square east of DC.  Missing serial numbers are of no importance.
		08.00	CA 9711
		11.45		From B.d.U:  To Zapp
				Well done.  Do not pass by square 18.  Delayed return transit.
		12.00	CA 9733	Day's run:  Surfaced     = 136 nm
			W 3, Sea 2-3, cloudy	Submerged =    24 nm = 160 nm.
		13.04		Dived.
		14.00		Course 90°.
		16.00	CA 9811
		20.00	CA 9812
		24.00	CA 9812

	Sun and Moon Data 24.01.42
	Sun and Moon Data 25.01.42

	- 16 -
		26.01.42
		00.05		Surfaced.
		01.00 - 05.00		Torpedo transfer from the over deck.
				After the transfer the wind increased again so strongly that the torpedoes could not have been transferred on subsequent days.
		04.00	CA 9677
		07.09		To B.d.U.:
				At Hatteras sank:
				18 January square 8487 tanker 9200
				19 January square 8896 passenger freighter 9000
				22 January square 1295 freighter 7500
				24 January square 7968 CHARES BLACK and ore steamer 10000 GRT
				On additional tanker 3 unexplained. 10 hits. 2 misses.  Have downloaded.  Square 98.
				Zapp.
		07.20		Course 80°.
		08.00	CA 9686
		12.00	CB 7475	Day's run:  Surfaced     = 134 nm
			SbyW 3, Sea 2, fair	Submerged =    22 nm = 156 nm.
		13.19		Test dive.
		13.39		Surfaced.
		13.58		Course 80°.
		16.00	CB 7469
		20.00	CB 7567
		24.00	CB 7655	From noon no weapons use possible due to sea state.
			SbyW 5-6, Sea 5, overcast
		27.01.42
		04.00	CB 8442
		05.45		Course 90°.
		08.00	CB 8439
		09.58		Course 100°.
		12.00	CB 8529	Day's run:  Surfaced     = 258 nm
			SSW 7, Sea 6, overcast	Submerged =     2 nm = 260 nm.
		16.00	CB 8646
		20.00	CB 8669
		22.25		Course 80°.
		24.00	CB 9483	No weapons use possible due to sea state.
			WNW 5, Sea 3, overcast

	Sun and Moon Data 26.01.42
	Sun and Moon Data 27.01.42

	- 17 -
		28.01.42
		02.00		Course 90°.
		04.00	CB 9547
		08.00	CB 9582
		12.00	CB 9593	Day's run:  Surfaced = 226 nm.
			NW 3, Sea 2, fair
		12.38	CB 9643	A smoke cloud in sight directly ahead.  Distinguished as a tanker.
				Maneuvered ahead on general course 220°.
		13.32		From B.d.U.:
				Return harbors are for . . . . . . . .
				. . . . . . . . Zapp Lorient . . . . . . . .
				B.d.U.
		14.14		Reached position ahead.  Steamer steers without zig zagging 240°.  Dived.
				The boat was very difficult to hold at periscope depth in the high short swells.  Even at depth 13.5 meters the periscope is nearly continually swamped.  Also was unable to get a sound bearing, because of the swell and probably self noise in the boat which was stronger after stowage of the loading gear.
		15.45		Sound bearing 220°T.
				Tanker came in sight for a moment at target angle 5-10°, range 5-6000 meters; therefore abeam distance between 600-1200 meters.
				Came to attack course.
				As a result of continuous undercutting and swamping of the periscope the tanker first came in sight again at target angle 80°.
				Because I believed incorrectly that the abeam distance was still 1000 meters, I thought that the tanker was a small vessel at most 100 meters long. (Actual length amounted to 134 meters)
		16.00	CB 9911
		16.03		Shots fired at target angle 95°, range 1000 meters.
				Miss.
		16.40		Surfaced, because there are no further sound bearings and the tanker is out of sight in the periscope.
				After surfacing immediate artillery defense.  Due to high swell artillery operation by day is not promising.
		16.47		Therefore crash dive.
		18.12		Surfaced, tanker out of sight.
				Tanker transmitted SSS and his name "BRITISH CORPORAL".
		19.26		Because it is a 6972 GRT sized tanker and not a small vessel, pursued at 15 knots.

Sun and Moon Data 28.01.42

	- 18 -
		continued
		28.01.42
		20.00	CB 9885
		23.51		Pursuit broken off because the tanker was not in sight up to darkness.  Course 70°.
				The whole approach was subject to a deception. Apparently the tanker had settled after he was spotted at target angle 5-10°, so that the transverse distance was not 1000 meters but about 3000 meters.  Miss due to large parallax.
		24.00	CB 9885
			SE 3-4, Sea 3, overcast
		29.01.42
		04.00	CB 9945
		08.00	CB 9935
		12.00	CC 7484	Day's run:  Surfaced     = 198 nm
			S 5, Sea 4, overcast	Submerged =   13 nm = 211 nm.
		13.44		Test dive.
		14.15		Surfaced.
		16.00	CC 7469
		20.00	CC 7551
		24.00	CC 7535
			SSE 7-8, Sea 7, overcast	No weapons use possible due to sea state.
		30.01.42
		04.00	CC 7378
		08.00	CC 7394
		11.47		Course 80°.
		12.00	CC 8143	Day's run:  Surfaced     = 184 nm
			SE 9, Sea 8, rain	Submerged =     1 nm = 185 nm.
		15.05		Course 70°.
		16.00	CC 8135
		17.00		Course 60°.
		20.00	CC 5878
		24.00	CC 5859
			W 6, Sea 7, overcast	No weapons use possible due to sea state.
		31.01.42
		04.00	CC 5943
		08.00	CC 5931
		12.00	CC 6474	Day's run:  Surfaced = 178 nm.
			WbyS 7, Sea 6, rain
		13.11		Test dive.

	Sun and Moon Data 28.01.42
	Sun and Moon Data 29.01.42
	Sun and Moon Data 30.01.42
	Sun and Moon Data 31.01.42

	- 19 -
		continued
		31.01.42
		13.38		Surfaced.
		16.00	CC 6459
		20.00	CC 6463
		24.00	CC 6525	No weapons use possible due to sea state.
			WbyS 6-7, Sea 6, overcast
		01.02.42
		04.00	CC 6299
		08.00	CC 6385
		12.00	CD 4157	Day's run:  Surfaced     = 242 nm
			WbyS 6, Sea 5, cloudy	Submerged =     2 nm = 244 nm.
		16.00	CD 4219
		16.04	CD 4233	Smoke cloud in sight bearing 50°T.
				Matched; steamer steers about 90-100°.
		20.00	CD 4315
		24.00	CD 5115	No weapons use possible due to sea state.
			W 6-7, Sea 5-6, cloudy
		02.02.42
		01.30		Steamer was distinguished as a neutral with set lights and illuminated hull side.
		01.45		Course 70°.
		04.00	CD 5133
		08.00	CD 2885
		12.00	CD 2869	Day's run:  Surfaced = 279 nm.
			NNW 7, Sea 6, overcast
		13.47		Test dive.
		14.30		Surfaced.
		16.00	CD 2961
		20.00	CD 3725
		24.00	CD 3575	Weapons use only possible at times.
			N 4-3, Sea 2-3, cloudy
		03.02.42
		04.00	CD 3647
		08.00	CD 3663
		12.00	CE 1423	Day's run:  Surfaced     = 251 nm
			NNW 4, Sea 3, rain	Submerged =     2 nm = 253 nm.
		14.38		Test dive.
		15.14		Surfaced.
		16.00	CE 1287
		20.00	CE 1357
		24.00	CE 2117
			NE 3, Sea 2-3, cloudy

	Sun and Moon Data 31.01.42
	Sun and Moon Data 01.02.42
	Sun and Moon Data 02.02.42
	Sun and Moon Data 03.02.42

	- 20 -
		04.02.42
		04.00	CE 2135
		08.00	CE 2221
		12.00	BD 8999	Day's run:  Surfaced     = 252 nm
			E 5, Sea 4, rain	Submerged =     2 nm = 254 nm.
		13.08		Test dive.
		13.40		Surfaced.
		16.00	BD 9759
		20.00	BD 9818
		21.43		From B.d.U.:   . . . . . . . . Zapp report weather on 5 February between 01.00 and 05.00 hours.
		24.00	BD 9832
			E 4, Sea 3, overcast
		05.02.42
		04.00	BD 9685
		04.16		To B.d.U.:
				Short Signal weather report:
				44°N, 26°W, 1024 mb, rising, +15°C, E 3-4, Cumulus clouds with precipitation in showers, Vis. up to 10 nm, low E-Swell.
		08.00	BD 9666
		12.00	BE 7419	Day's run:  Surfaced     = 241 nm
			EbyN 3, Sea 2-3, showers	Submerged =     1 nm = 242 nm.
		13.15		Test dive.
		13.48		Surfaced.
		13.38		Course 80°.
		16.00	BE 7515
		20.00	BE 7532
		24.00	BE 7388
			E 2-3, Sea 2-3, overcast
		06.02.42
		04.00	BE 8174
		08.00	BE 8192
		12.00	BE 8259	Day's run:  Surfaced     = 267 nm
			EbyN 4-5, Sea 3-4, overcast	Submerged =     2 nm = 269 nm.
		13.18		Test dive.
		13.51		Surfaced.
		16.00	BE 8343
		20.00	BE 8363
		24.00	BE 9125
			NE 3-4, Sea 2-3, overcast
		07.02.42

	Sun and Moon Data 04.02.42
	Sun and Moon Data 05.02.42
	Sun and Moon Data 06.02.42

	- 21 -
		07.02.42
		04.00	BE 9211
		08.00	BE 9231
		09.09		Dived, proceeded submerged.
		12.00	BE 6979	Day's run:  Surfaced     = 240 nm
				Submerged =   11 nm.
		16.00	BE 6985
		20.00	BE 6991
		21.55		To B.d.U.:
				Am 36 hours off return harbor.
				U-66.
		23.04		From B.d.U.:
				Zapp will be off return harbor Lorient on 9 February at 10.00 hours.    B.d.U.
		24.00	BF 4771
			EbyN 2-3, Sea 3, rain
		08.02.42
		04.00	BF 4759
		08.00	BF 4851
		09.12		Dived, proceed submerged.
		12.00	BF 4914	Day's run:  Surfaced     = 142 nm
				Submerged =   24 nm = 166 nm.
		16.00	BF 4915
		20.00	BF 4916
		20.19		Surfaced.
		23.06		From B.d.U.:
				Zapp and Hardegen will be taken under escort on 9 February at 10.00 hours at Point L 2.
				B.d.U.
		24.00	BF 5713
			ENE 4, Sea 3, overcast
		09.02.42
		04.00	BF 5575
		07.18		To B.d.U.:
				Will be at Lucie 2 this morning at 10.00 hours.
				Zapp.
		07.37		Dived, proceeded submerged.
		08.00	BF 5585
		12.00	BF 5585	Day's run:  Surfaced     = 152 nm
				Submerged =   26 nm = 176 nm. [typo act. 178 nm]
		16.00	BF 5585
		20.00	BF 5584
		20.31		Surfaced.
				Proceeded on Lorient entry route.
		20.46		From B.d.U.:
				Escort for Zapp positioned on 10 February at 10.00 hours at Point Lucie 2.
				B.d.U.
		22.58		Short Signal to B.d.U.:
				Request bearing signals from Transmitter II.
				Zapp.

	Sun and Moon Data 07.02.42
	Sun and Moon Data 08.02.42
	Sun and Moon Data 09.02.42

	- 22 -
		continued
		09.02.42
		23.55		From B.d.U.:
				Bearing transmitter II runs from 10-15 minutes and 40-45 minutes hourly until dawn.
				B.d.U.
		24.00	NE 3, Sea 1-2, fair
		10.02.42
		07.20		2 dimmed patrol boats on opposite course in sight.
		07.30		Patrol boats out of sight.
		09.45	Point L 2	Taken in convoy
		11.20		Escort ended.
		11.40	Lorient	Made fast Lorient.
				Korv.Kpt. and Kommandant
				"U 66"
			General Remarks:
			The weather was very unfavorable during the whole patrol except for a few days. Except for the first 3 days after departure and the American coast the boat experienced only heavy weather.  Also during the return transit unrestricted use of weapons was only possible in the last 4 days prior to return.  The bridge personnel were particularly heavily stressed under these circumstances.
			Fortunately during pursuit and attacks the weather was favorable.  The sinking of the extraordinarily skilful zig zagging and 14 knot fast cargo and passenger steamer would not have succeeded if wind strength had been even 1-2 more.
			Due to the effects of the continually bad weather, it was impossible to reach the operations area until 13 January 1942.  A radio message to this effect was not sent to preserve radio silence and because it was assumed that all the boats suffered equally under the bad weather conditions.
			When the first situation and success message from "Hardegen" arrived on 18 January the prospect of a great success seemed very low to me, because late arrival in the operations area ruled out the element of surprise.   Success is only possible if the boat is undetected for some time, i.e. all ships were sunk quickly, the survivors needed more time to get ashore and ships could no longer send radio messages.  Therefore, the boat remained submerged by day approaching the coast and in the operations area.
			All steamers in the operations area were identified at night, although they are all blacked out and the nights were quite dark.  All lookouts worked well.  Here Obersteuermann Frölich was particularly excellent and deserves special recognition.

	Sun and Moon Data 09.02.42
	Sun and Moon Data 10.02.42

	- 23 -
			Traffic situation:  The heaviest traffic was determined to be from the south to north to the "Diamond" Lightship to off "Cape Hatteras".  Here bunches of traffic are especially heavy and proceeds in all directions.  All beacons were extinguished and all steamers darkened.  The zig zags of the steamers were still very clumsy, except for the previously mentioned cargo freight-passenger steamer, who by his general course was probably an Englishman.  Medium traffic is present in squares CB and CC, apparently from/to South America and the Bermudas.
			Surveillance:  During the inbound and outbound transits no surveillance vessels were noted.  In the operations area and on crossing the sinking location of the 1st tanker a medium sized fast vessel with a strong searchlight, therefore probably a warship.  By day two times aircraft were observed through the periscope to protect traffic in the vicinity of the 200-meter line at "Cape Hatteras".  A clear assessment of the surveillance conditions can not be made with the few observations.
			Casualties:  One seaman had the Flu with a fever of 41°C, that however quickly fell again.
			The behavior of the entire crew was impeccable in spite of the continuous bad weather and the day-long submergence without ventilation and heat up to 30°C.