U-564 - 4th War Patrol

Translation by Jerry Mason

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
11 Feb 42	01.43 - 03.24	36°09'N, 67°18'W	VICTOLITE	11,410	Canada
16 Feb 42	20.38 - 21.30	37°39'N, 66°46'W	OPALIA (damaged)	6,195	British
			Total = 17,605
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
			= = = = = = = = = = = = = = = =
				"U-564"
			Kommandant:	Kaptlt.  S  u  h  r  e  n.
			Beginning:	1. 11.1941.
			Ending:	6.   3.1942.
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
		01.11.41 to		Shipyard period.
		06.01.42	Lorient	The flooding mechanism and a KDB were fitted, the port diesel engine was replaced.
		06.01.42	Lorient	Torpedo and munitions loading.
		07.01.42	"	Shipyard sea trial and trim test.
		08.01.42	"	Provisions loading.
		09.01.42	"	Degaussing, magnetic compass calibration, radio direction finder calibration.
		10.01.42	"	Radio direction finder calibration, boat taken over.
		11.01.42
		09.30		Radio direction finder calibration.
		13.30		Departed.  Transit from La Pallice in convoy to L 2, then independently on the route.
		23.38		Test dive.
		12.01.42	Off Western France
		00.00	BF 5863
			Lightly freshening SE-wind, few clouds, clear
		00.15		Surfaced.
		04.00	BF 9132	Outer half of the route many fishing vessels as usual.
		04.50	Point Dach	Entered on Route Dachgiebel.
		08.00	NE-wind jumping
		10.15	Point 36	At convoy intake point.  No escort in sight.  Hung on to 2 patrol boats.
		16.20	Lock at La Pallice	Entered.
		17.04	La Pallice	Made fast Box 5.  Standby for Special Task Order "Göttingen".  Day's run:  262 nm.
		13.01.42 to	La Pallice
		15.01.42		Standby.
		16.01.42	La Pallice
		02.00		Order to be ready to sail at 02.30 hours was cancelled.
		17.01.42	La Pallice	Gave Special Task "Göttingen" to U-432.
		15.40		Dry docked, because main ballast tank 5 blew.
		18.01.42
		16.25	La Pallice	Cast off for departure.

	Sun and Moon Data 11.01.42
	Sun and Moon Data 12.01.42
	Sun and Moon Data 18.01.42

	- 2 -
		continued
		18.01.42
		17.42	Barrier at La Pallice	Departed under escort of a Sperrbrecher and two patrol boats with an Italian U-boat to Point 36.  Then independent transit via Point Dach to ordered square BC 56 on the Great Circle route.
		20.00	WNW 4, Sea 3, few clouds, murky
		23.00	Point 36
		19.01.42	Off Western France
		00.00	Slowly abating, clearing
		06.53	Point Dach
		08.00	BF 9135
			Cloud deck breaking up
		08.50		Dived to proceed submerged in accordance with Standing Orders.
		12.00	BF 9123	Day's run:  Surfaced     139.3 nm
				Submerged     8.7 nm.
		16.00	BF 9122
		16.49	Vis. changing in fog from 3-6000 meters	Surfaced to shoot the sun.
		16.58		Continued submerged transit.
		20.00	BF 9121	Surfaced.
			Wind and Sea WNW 4, Vis. bad, rain
		20.01.42	Off Western France
		00.00	BF 5885
			Extensive cloudiness
		04.00	BF 5847
		08.00	BF 5756	Due to very good visibility conditions continue transit on the surface.
			Few very high clouds, Vis. very good, slight wind and Sea from the WNW
		12.00	BF 4962	Day's run:  Surfaced     131.5 nm
				Submerged    24.5 nm.
		16.00	BF 4919
			Weather unchanged.
		20.00	BF 4825
		21.01.42	Bay of Biscay
		00.00	BF 4811
			Wind freshening shifting to the W, increasing cloudiness with rain
		04.00	BF 4488
		08.00	BE 6696
			Heavily cloudy, Vis. medium
		09.29		Dived to proceed submerged.

	Sun and Moon Data 18.01.42
	Sun and Moon Data 19.01.42
	Sun and Moon Data 20.01.42
	Sun and Moon Data 21.01.42

	- 3 -
		continued
		21.01.42
		12.00	BE 6694	Day's run:  Surfaced     192.2 nm
				Submerged      7.8 nm.
		13.37		Surfaced, continued transit on the surface.
		16.00	BE 6681
			Low solid cloud deck with rain, increasing wind
		20.00	BE 6671
		22.01.42	North Atlantic
		00.00	BE 6568
			Few clouds, clear, N 5, Sea N 5
		04.00	BE 6558
		08.00	BE 6544
			Wind abating and shifting to the W, increasing cloudiness, Vis. very good
		09.18		Passing report "BE 64" sent, incorrectly confirmed. (BE 79)
		12.00	BE 6451	Day's run:  Surfaced     143.5 nm
				Submerged         5 nm.
		16.00	BE 5639
			Overcast, long W-Swell
		20.00	BE 5628
		23.01.42	North Atlantic
		00.00	BE 5615
			Medium W-Sea, overcast, hazy
		04.00	BE 5532
		08.00	BE 5523
			Low hanging rain clouds, murky, Vis. medium, W 4-5, Sea W 4
		12.00	BE 5521	Day's run:  Surfaced     125 nm
				Submerged      1 nm.
		16.00	BE 5277
			Still isolated rain showers
		20.00	BE 5194
		24.01.42	North Atlantic
		00.00	BE 5184
			Wind and Sea freshening, Vis. low
		04.00	BE 5171
		08.00	BE 4392
			Overcast
		12.00	BE 4383	Day's run:  Surfaced     108 nm
				Submerged      - nm.

	Sun and Moon Data 21.01.42
	Sun and Moon Data 22.01.42
	Sun and Moon Data 23.01.42
	Sun and Moon Data 24.01.42

	- 4 -
		continued
		24.01.42
		16.00	BE 4349
			Cloud deck breaking up
		20.00	BE 4366
		25.01.42	North Atlantic
		00.00	BE 4256
			Abating, overcast, rain	Short Signal weather report sent, no confirmation.
		04.00	BE 4246
		08.00	BE 4162
			Again freshening
		10.36		Test dive.
		12.00	BE 4152	Day's run:  Surfaced     127.3 nm
				Submerged     2.7 nm.
		16.00	BE 4152
			SW 6, Sea 5, overcast, misty to foggy
		20.00	BD 6363
		26.01.42	North Atlantic
		00.00	BD 6361
			Slowly abating, rain, Vis. medium
		04.00	BD 6351
		08.00	BD 6342
		12.00	BD 6238	Day's run:  Surfaced     100 nm
				Submerged     0 nm.
		16.00	BD 6229
			Vis. medium to good
		20.00	BD 6227
		27.01.42	North Atlantic
		00.00	BD 6242
			W 8, Sea 6, heavily cloud with rain, Vis. bad
		04.00	BD 6241
		08.00	BD 6162	Test dive.
			Abating
		12.00	BD 6153	Day's run:  Surfaced     78 nm
				Submerged  1.2 nm.
		16.00	BD 6142
			Long NW-Swell, Vis. good
		17.57		Received freedom to maneuver by Radio Message, therefore will advance as far to the west as possible.   I intend initially to head for Cape Race
		20.00	BD 5365

	Sun and Moon Data 24.01.42
	Sun and Moon Data 25.01.42
	Sun and Moon Data 26.01.42
	Sun and Moon Data 27.01.42

	- 5 -
		28.01.42	North Atlantic
		00.00	BD 5355
			Abating further, heavily cloudy, Vis. good
		04.00	BD 5344
		08.00	BD 5259
			Wind shifting to the W
		12.00	BD 5248	Day's run:  Surfaced     149 nm
				Submerged      0 nm.
		16.00	BD 5167
			Rain, fog, Vis. bad
		20.00	BD 5172
		29.01.42	Laura Ethel Bank
		00.00	BD 4391
			Vis. improving
		04.00	BD 4373
		08.00	BD 4245
			W 6, Sea 5, dawn
		11.50		Test dive.
		12.00	BD 4150	Day's run:  Surfaced     195.5 nm
				Submerged      0.5 nm.
		12.20		Surfaced.
		16.00	BD 4159
			Vis. good
		20.00	BD 4148
		30.01.42	East of Newfoundland
		00.00	BC 6368
			Slight wind and Sea from the SSW, Vis. good
		04.00	BC 6381
		08.00	BC 6293
			Freshening, slight Vis. deterioration
		12.00	BC 6283	Day's run:  Surfaced     141 nm
				Submerged   0.8 nm.
		16.00	BC 6273
			Long SSW-Swell, heavily cloudy
		20.00	BC 6197
		31.01.42	East of Newfoundland
		00.00	BC 6425
			Wind abating
		04.00	BC 6442
		08.00	BC 5665
			Few clouds
		11.47		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

	- 6 -
		continued
		31.01.42
		12.00	BC 5681	Day's run:  Surfaced     147 nm
				Submerged     1 nm.
		16.00	BC 5676
			SSE-Swell
		16.13	BC 5676	1 small sailing vessel with 1 mast and 1 brown sail in sight, perhaps a lifeboat.  Turned away.
		20.00	BC 5833
		01.02.42	East of Newfoundland, Flemish Cap
		00.00	BD 5823
			S 3, Sea 2-3, heavy cumulus clouds
		04.00	BC 5575
		08.00	BC 5495
			Slight Swell, heavily cloudy, Vis. good
		12.00	BC 5484	Day's run:  Surfaced     140 nm
				Submerged   0.6 nm.
		16.00	BC 5484
			Somewhat freshening, Vis. good, in places driving snow
		20.00	BC 4694
		02.02.42	East of Newfoundland, Virgin Rocks
		00.00	BC 4681	Intend to approach close off Cape Race in case traffic still runs there.
			NW 4, Sea 3, overcast, full moon
		04.00	BC 4593
		08.00	BC 4581
			Fog, Vis. very low
		12.00	BC 4467	Day's run:  Surfaced     164 nm
			Dawn, Vis. unchanged bad	Submerged     - nm.
		12.25		Test dive.
		16.00	BC 4459	Remained submerged, because with the bad visibility sound conditions are very favorable.
		20.00	BD 4457
		23.38	Dusk	Surfaced.
		03.02.42	South of Newfoundland, Cape Race
		00.00	BC 4448	Approached close off Cape Race, believe it is hopeless, because I suspect that if traffic still runs at all here, which does not seem to be the case according to the latest Radio Messages of the other boats, it will not run close to shore due to the poor visibility conditions.   Also as a result of bad weather the past few days I have no exact navigation fix,
			Overcast, misty

	Sun and Moon Data 31.01.42
	Sun and Moon Data 01.01.42
	Sun and Moon Data 02.01.42
	Sun and Moon Data 03.01.42

	- 7 -
		continued
		03.02.42		so that also without the sounder one can form no picture.  For the most part, the difficulty of U-boat navigation results from the fact that not every opportunity to shoot stars can be exploited.  Increased cloud cover often occurs in the twilight hours in the northern latitudes, then returns again especially at night.  The creation of a sextant with an artificial horizon for observing would suit this fact and ensure even more accurate submarine navigation. The presence on different boats of a bubble sextant is a start and further development must be accelerated so that it can be operated on a rapidly moving platform.   The still prevailing bias among the navigators would then be easier to eliminate.
		04.00	BB 6682
		08.00	BB 6942
			Nearly calm and no Sea, rain, misty, Vis. bad
		12.00	BB 6898	Day's run:  Surfaced     133.3 nm
				Submerged    36.7 nm.
		12.40	Vis. unchanged	Dived because of bad visibility with favorable sound conditions.
		16.00	BB 6897
		19.30	BB 6889	Confused sounds distinguished in the GHG, shifting away slowly.
		20.00	Completely calm, misty, Vis. 4 nm	Surfaced, Proceeded in the direction of the sounds.  Nothing found.
		21.00		Dived.  Sounds no longer heard.
		22.47		7 depth charges at very long range.  Apparently scare depth charges.
		04.02.42	South of Newfoundland
		00.00	BB 6882	Surfaced.
			Freshening, overcast, Vis. bad, dusk
		04.00	BB 6768
		08.00	BB 6746	Gradually building ice formation.
			Light driving snow, air temperature below 0°
		12.00	BB 5952	Day's run:  Surfaced     138.9 nm
				Submerged    34.1 nm.
				Because nothing was met here, intend to advance in the Gulf of St. Lawrence
		16.00	BB 5977
			NW 4, Sea 3, Vis. medium to good
		20.00	BB 8375	Icing was heavier.  Therefore I gave up my advance in the Gulf of St. Lawrence, because the boat is no longer fully ready to crash dive (icing of the diesel air head valve and danger that the vents for main ballast tank I and V will also ice up in the calm seas.
		05.02.42	South of Nova Scotia, Sable Island
		00.00	BB 8562
			Driving snow, Vis. low

	Sun and Moon Data 03.02.42
	Sun and Moon Data 04.02.42
	Sun and Moon Data 05.02.42

	- 8 -
		continued
		05.02.42
		04.00	BB 8585
		08.00	BB 8842
			Wind and Sea somewhat freshening, driving snow lessened
		12.00	BB 8798	Day's run:  Surfaced     229 nm
				Submerged      0 nm.
		12.57	Dawn	Test dive.  Diesel air head valve deiced submerged, after blowing with warmer air remained unsuccessful.
		14.00		Surfaced.  Diesel air was now sucked through the ventilation air intake shaft, operating with one diesel at transit speed was just possible.
		15.13	CB 3129	Crash dive for a flying boat.
			SW 5, Sea 4, few Cumulus clouds, Vis. very good
		15.31		Surfaced.
		15.57		Flying boat comes in sight once again, however does not see us.
		20.00	CB 3173
		06.02.42	Southeast of Nova Scotia off America
		00.00	CB 2633
			Cloudy, calm, Vis. good
		04.00	CB 2664
		05.45	CB 2659	Light in sight bearing 330°T.  Turned towards it.  Attempt to close from the moon side of the steamer.  Steamer makes little speed, but turns. Tried to break through behind the stern and approach from the other side.  Steamer turns from the previous North Course to the NE and at the same time increases speed.  Despite maximum speed I can not keep up.  Steamer has a great many dazzling lights set so that it can not be identified.  Let the steamer go, because other boats already reported an illuminated U-boat trap here.
			Nearly calm, bright moonshine, few clouds, Vis. very good with completely slight Sea
		07.00	CB 2656	Continued transit to the west.
		08.00	CB 2682
		12.00	CB 2913	Day's run:  Surfaced     166 nm
				Submerged    6.2 nm.
		1.50	CB 2868
			Wind jumping from N to S, freshening, increasing cloudiness
		18.36		Winter reported starting return transit by Radio Message.  I am positioned nearby, give a situation report requesting fuel transfer from Winter, with which the B.d.U. concurred.
		07.02.42	South of Nova Scotia off America
		00.00	CB 5246
			SE 4-5, Sea 3-4, overcast, rain, black night with lightening
		04.00	CB 5271
		08.00	CB 5299
			Abating

	Sun and Moon Data 05.02.42
	Sun and Moon Data 06.02.42
	Sun and Moon Data 07.02.42

	- 9 -
		continued
		07.02.42
		12.00	CB 5437	Day's run:  Surfaced  172 nm, Submerged  - nm.
		12.48		Test dive.
		13.16		Surfaced.
		16.00	CB 5457
			Vis. good
		20.00	CB 5533
		20.28		The weather is favorable for fuel transfer, I suggest carrying this out already tomorrow by Radio Message.
		08.02.42	Off America, south of Nova Scotia, north of Bermuda
		00.00	CB 5555
			Freshening of the S wind with heavy rain
		04.00	CB 5575
		08.00	CB 5736
			Heavily cloudy, Vis. good, S 6, Sea 5
		12.00	CB 5738	Day's run:  Surfaced     168 nm
				Submerged   1.4 nm.
		16.00	CB 5756
			Somewhat abating
		18.09		Because my position is not exact, I send the following radio message:  Position inexact, probably 70 nm north of the meeting point.  Will send bearing signals from 18.15 hours.  Request bearing report.
		20.00	CB 8123
		21.46		Winter send by radio Radio Message that he has heard no bearing signals, and suggests radio silence, until transfer is possible according to weather.
		09.02.42	Off the American coast north of Bermuda
		00.00	CB 8116
			Rain showers
		04.00	CB 7339
		08.00	CB 7362
		12.00	CB 7361	Day's run:  Surfaced  100 nm, Submerged  - nm.
			NW 7-8, Sea 6
		12.42		Positioned close to the meeting point.  Due to the heavy seas a transfer is not possible, to save fuel I dive.
		15.06		Surfaced to shoot the sun.
		15.52		Dived.
		16.00	CB 7353
		19.52		Surfaced to shoot the sun.
		20.00	CB 7296	Dived.
			Weather unchanged, bad

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

	- 10 -
		10.02.42	Off America at the level of Chesapeake Bay
		00.00	CB 7296
			Abating, nearly clear, Vis. good
		00.43		Surfaced.
		04.00	CB 7296
		08.00	CB 7296
			W 5, Sea 4, closed cloud deck
		09.14		B.d.U. sends by radio message:  Winter continue return transit.  Suhren free to maneuver after Winter reported that transfer is not possible due to weather and only 4 cbm still available.
		12.00	CB 7294	Day's run:  Surfaced  20 nm, Submerged  30 nm.
		16.00	CB 7276
			Slowly abating, lightly misty
		20.00	CB 7251
		20.25	CB 7251	1 smoke cloud in sight bearing 286°T.  Maneuvered ahead and distinguished a tanker on course 210°.
			NW 4, Sea 3, heavily cloudy, abating
		11.02.42
		00.19		At dusk closed on the tanker at target angle 60°.  Waited until darkness and then attacked.
		01.43	CB 7429	Shot from tube I.  Miss due to overestimation of the speed.
				Matched the speed of the tanker unhurriedly.  The enemy maintained speed and course the entire time, no zig zag was observed.
		03.24	CB 7455	Shot from tube II with exact data.  Hit amidships, running time 25 seconds.  Tanker transmits on the 600 meter wave:  SSS VICTOLITE position 36r12N 67r14W torpedoed.  Position checks exactly.  Size 11410 GRT.
				Crew goes immediately into the boats.  I wait a moment and then shoot the stern and bridge of the tanker with artillery, which lies stopped with a slight list to starboard.  No signs of life.
				Close up and shoot this time with machine guns the stern and bridge.  Nothing stirs.  The tanker is completely abandoned.  Rubber boat launched, to determine if the tanker has diesel oil for supply on board.  However, what is found is completely unusable because it is very thick and must first be heated to atomize.
				Sought after secret documents, but the lockers were empty. Found that tanker was proceeding from Montreal to Venezuela. The tanker was armed with a 10.2 cm cannon on the stern and a 4 cm antiaircraft gun on the top deck, but no ammunition was found. 4 explosive cartridges were places in the engine room. Despite this the tanker did not sink.  With a total of 98 8.8 cm shots

	Sun and Moon Data 10.02.42
	Sun and Moon Data 11.02.42

	- 11 -
		continued
		11.02.42		shot all tanks and the over deck.
		05.05		Tanker settled slowly, in burning condition, left with the bow bridge and smokestack cap still out.
		06.03		Flames extinguish suddenly, after the boat had moved off 6 nm.
		08.00	CB 7455	Intend to head for Cape Hatteras now to attack steamers by night close under the coast in the belief that the time available to me will be best utilized.
				Fuel 67.4 cbm.
		12.00	CB 7444	Day's run:  Surfaced 180.5 nm, Submerged  1.5 nm.
		12.50		Test dive.
		13.22		Surfaced.
		16.00	CA 9648
			Totally slight NW wind and Sea, rain, Vis. bad
		20.00	CA 9648
		12.02.42	East of Cape Hatteras
		00.00	CA 9559
			Weather unchanged
		04.00	CA 9571
		08.00	CA 9486
			Freshening
		12.00	CA 9477	Day's run:  Surfaced 175 nm, Submerged  0 nm.
		16.00	CA 8923
			End of the rain, misty
		20.00	CA 8915
		13.02.42	East of Cape Hatteras
		00.00	CA 8931
			Freshening wind up to NW 6, Sea 5, in places rain
		04.00	CA 8921
		08.00	CA 8914
			Slowly abating
		12.00	CA 6835	Day's run:  Surfaced 71 nm, Submerged  0 nm.
		13.08		Test dive.
		15.15		Surfaced.
		16.00	CA 6853	A U-boat in sight, "U-107".
			Vis. good
		20.00	CA 8846	Closed Gelhaus to discuss the traffic conditions at Cape Hatteras.  In so doing rammed him on the starboard aft side at the level of the diesel engine room due to over-estimation of the distance and rudder angle.  The latter, because the boat turned with difficulty in the seas. Own damage: Forestem pushed to starboard about one meter so that the starboard tubes can not be opened.  Tubes I and IV flood from overboard, tubes II and IV will not open due to bending of outer tube door fairings, watertight bow can not be closed.
			NNW 5, Sea 4

	Sun and Moon Data 11.02.42
	Sun and Moon Data 12.02.42
	Sun and Moon Data 13.02.42

	- 12 -
		continued
		13.02.42
				Still have only the stern tube ready and begin return transit in the hope of still taking 2 steamers on the way back with the stern tube.  On Gelhaus the starboard external bunker was dented and emptied.  Since he was short of fuel for the return transit, it was agreed to transfer 10 cubic meters to him.
		14.02.42	East of Cape Hatteras
		00.00	CA 8847
			Abating, dusk
		01.20		Met with "U-432".  Had completed in accordance with Special Order "Göttingen" and intended to pause in this area for several days.
		04.00	CA 8846
		08.00	CA 8853
			Weather unchanged.
		12.00	CA 8836	Day's run:  Surfaced 126.3 nm, Submerged 0.7 nm.
		13.04		Test dive.
		16.00	CA 8914
		17.20		Surfaced.
		18.01		Gave meeting point for fuel transfer to Gelhaus by Radio Message.
		20.00	CA 8913	Crash dive for a flying boat.
			Heavily cloudy, Vis. medium
		22.00		Surfaced.
		22.26	CA 8913	1 steamer with course 230° in sight.  Maneuvered ahead.  Steamer was also sighted by Gelhaus and reported.
			NW 5-6, Sea 4-5, high Swell, very dark night
		22.57		Dived.  Boat scan be held only with difficulty due to the sea state and abeam the sea.
		15.02.42	Cast of Cape Hatteras
		00.08	CA 8679	Shot from range = 700 meters, depth 3 meters, with tube V.  Miss.  Speed somewhat overestimated, torpedo must have passed barely ahead of the bow, because I shifted the aimpoint aft.  It was a small 2500 GRT British freighter of the 3 Island type.
				Matched speed of the steamer submerged, speed 6 knots.  Reloaded.
				In the twilight surfaced, maneuvered ahead to target angle 0° and moved off a bit.
		02.03		Shot with tube V at a range = 500 meters, depth 2 meters, with exact shooting data.
				Miss.  Torpedo must have under steered, because shooting data agreed perfectly.  A breakthrough of the surface was not observed with the strong marine phosphorescence.

	Sun and Moon Data 13.02.42
	Sun and Moon Data 14.02.42
	Sun and Moon Data 15.02.42

	- 13 -
		continued
		15.02.42	Off America north of Bermuda
		04.00	CA 8672
		08.00	CA 8668
		12.00	CA 9445	Day's run:  Surfaced     52.6 nm
				Submerged   37.4 nm.
		13.37	CA 9451	1 smoke cloud in sight bearing 150°T, quickly comes closer.  A tanker with target angle 0°.
			NW 4-5, Sea 4, heavily cloudy, Vis. good
		15.05		Dived.  Attempted to open one of the two port tubes by force. Unsuccessfully.   Tanker goes by in the direct vicinity, it is a quite new American of approximately 9000 GRT.
				When he is abeam, I am positioned directly into the sea, such that gun operation in the prevailing sea state is not possible. The operator would have been washed overboard after the first shot.
		16.00	CA 9428
			Wind and sea unchanged, freshening of the cloud deck
		16.33		When the tanker comes out of sight, surfaced and ran after in the hope that the weather will improve.
		17.10		Tanker reports by radio message.
		18.10	CA 9421	Tanker does not come in sight again.  Apparently he made more speed than the estimated 7 knots.
				I cannot proceed at higher speed, because the boat already vibrates very strongly as a result of the deformed bow at HF against the sea. Therefore, gave up the pursuit, particularly as the weather does not improve.
		20.00	CA 9197
		16.02.42	East of America
		00.00	CA 9273
			Few clouds, clear, SW 4, Sea 3
		04.00	CA 9268
		08.00	CA 9355
			Wind jumps to the NNW
		12.00	CB 7264	Day's run:  Surfaced     223 nm
				Submerged     0 nm.
		14.15		Gelhaus give a new meeting point for the transfer by Radio Message.
		15.57	CB 7242	A smoke cloud in sight bearing 67°T, a tanker.  Maneuvered ahead with the intention of attacking him with the remaining 83 shots of ammunition.
			NNW 3, Sea 2-3, abating, clear sky
		19.45 20.38	CB 4998	Dived.  Surfaced when the tanker was abeam, at a range of 1500 meters and began artillery combat.  Tanker was armed with 3 cannons.  Running battle with E-supplement [use of E-motors and diesels together].  The tanker turned away after the first salvo and shot back with his stern cannon.  His first impacts were short about 200 meters.  With the help of the E-supplement, his subsequent shots, as usual with the English, were on the short side

	Sun and Moon Data 15.02.42
	Sun and Moon Data 16.02.42

	- 14 -
		continued
		16.02.42		without regard to the E-supplement.
				Own impacts were all long, even though after the 7th shot a range of 0 was set.  Even when No. 1 aimed with the top gun sight there were no short shots.  Only at a distance of about 500 meters was the first hit achieved, but also the ammunition ran out.
		21.30	CB 4796	Must let the still shooting tanker go.
				A later examination of the range wheel revealed that it had shifted by 6000 meters against the graduated rim, while still stuck so it couldn't be moved, not even by force. During shooting there must have been a continuous maladjustment, because upon departure from the base graduated rim and range wheel rim still matched and were checked by witnesses.
				At the beginning of the combat the tanker transmitted the name "OPALIA" and that it was being shot at by a U-boat.
		xx.19		Reported situation by Radio Message.
		xx.45		Tanker out of sight on SE course to Bermuda.
		17.02.42	South of Nova Scotia
		00.00	CB 4887
			ESE 2, Sea 1
		01.25		I am at the meeting point for transfer however, nothing is seen of Gelhaus.  I shot a recognition signal cartridge then dive, possibly to hear something.  Without success.  Also no bearing signals heard.
		02.50		Give Gelhaus position, course and speed.
		03.50 04.00	CB 4894	Because the weather is favorable, I decide to download the stern torpedo [from the upper deck], to have at least one tube ready to shoot.  Unfortunately I can not get to the outer tube doors of the forward tubes because the boat pounds too heavily in the swell.  Downloading was only possible in the swells and overcoming seas only because the crew worked well and despite the dark night the transfer gear was assembled correctly and properly.
		06.15		Downloading ended.
		08.00	CB 4972
			Freshening
		12.00	CB 4955	Day's run:  Surfaced 198.6 nm, Submerged 5.4 nm.
		12.45	Dawn	Test dive.
		13.10		Surfaced.
		14.53		Received a new meeting place with Gelhaus by Radio Message.
		16.00	CB 4965
			SSW 7, Sea 5, overcast, Vis. very low
		20.00	CB 5745

	Sun and Moon Data 16.02.42
	Sun and Moon Data 17.02.42

	- 15 -
		18.02.42	North Atlantic
		00.00	CB 5753
			Weather unchanged, bad
		04.00	CB 5763
		08.00	CB 5827
			Slowly abating
		12.00	CB 5924	Day's run:  Surfaced     162.2 nm
				Submerged      1.8 nm.
		16.00	CB 6449
			Overcast, WNW 6, Sea 5
		20.00	CB 6514
		19.02.42
		00.00	CB 6582
			Vis. low
		04.00	CB 6565
		08.00	CB 6618
			Gradually abating
		12.00	CB 6623	Day's run:  Surfaced     180 nm
				Submerged      0 nm.
		12.13		Test dive.
		12.35		Surfaced.
		16.00	CB 6399
			Freshening cloud deck
		20.00	CC 4173
		20.02.42	North Atlantic
		00.00	CC 4157
			WNW 4, Sea 3, heavily cloudy
		04.00	CC 4138
		08.00	CC 4215
			Increasing cloudiness, freshening
		12.00	CC 1887	Day's run:  Surfaced     126.7 nm
				Submerged      3.3 nm.
		16.00	CC 1891
			Rain
		20.00	CC 1953
		21.02.42	North Atlantic
		00.00	CC 1938
			NW 3-4, Sea 2-3, abating
		04.00	CC 2487
		08.00	CC 2492
			Slight cloudiness and Sea
		11.55		Test dive.

	Sun and Moon Data 18.02.42
	Sun and Moon Data 19.02.42
	Sun and Moon Data 20.02.42
	Sun and Moon Data 21.02.42

	- 16 -
		continued
		21.02.42
		12.00	CC 2551	Day's run:  Surfaced     116 nm
				Submerged    x.x  nm.
		12.23	Light wind and Sea from the SE, rain, Vis. 4-5 nm, changing	Surfaced.
		13.04		A tanker with target angle 0° in sight bearing 94°T, course 280°.  Ran to attack with the stern tube.  Tanker comes closer quickly, dived.
				Estimated speed exactly determined at 10.5 knots from range and speed of screw revolutions (188).  Exact target angle by "running bearing" because the tanker is not zig zagging due to the poor visibility.  Depth 2.5 meters.
		13.46	CC 2543	Shot with tube V.  Miss. Passed astern, because the coarse needle of the torpedo shot angle receiver indicated 10° too low.  In the periscope it was also observed that the torpedo steered to the left with a shooting angle of 186°.
				[the shot angle of the torpedo was 10 higher than set on the lead angle calculator]
				With a new check of the system the same discrepancy was very rarely seen again, so it was not discovered during the daily check of the stern tube by the operators.  In addition, the match light was illuminated despite the mismatch of the coarse pointer system, thus preventing the discovery of the defect before the shot.  When the shooting angle was compared to the angle at the tube before the shot it agreed with the result on the lead angle calculator.  The error is still unexplained.
				Ran off submerged.
		14.09		One detonation heard far off.
		14.10		Surfaced.  On 600 meters the tanker "NULIMA" transmits that at 13.41 it was attached by a torpedo, torpedo however missed us by 6 feet.
		16.00	CC 2528
			Freshening.  Vis. again bad
		16.32		A tanker in sight bearing 30°T, course SW.
		16.35		Dived, to have a look at the tanker submerged.  It is an old 5000 GRT tanker with a high smokestack.
		17.10		Set off submerged, surfaced.
				Reported both tankers by Radio Message.  They were among five tankers that traveled far apart and are now reported by Gelhaus.
		20.00	CC 2531
			Suddenly freshening to E 8, Sea 6, heavy rain
		22.02.42	South of the Newfoundland Bank
		00.00	CC 2299
			Abating
		04.00	CC 2376
		08.00	CC 2357
			E 3, Sea 3, heavily cloudy
		12.00	CC 2364	Day's run:  Surfaced 84 nm.

	Sun and Moon Data 21.02.42
	Sun and Moon Data 22.02.42

	- 17 -
		continued
		22.02.42
		16.00	CC 2313
		17.50	Vis. very good, slightly cloudy, Swell	Suggest by Radio Message that transfer to Gelhaus be carried out since I believe the weather will be favorable tomorrow.  Gelhaus gave meeting point for 23 February.
		20.00	C 3312
		23.02.42	Southeast of the Newfoundland Bank
		00.00	BC 7898
			Slight wind and Sea.
		04.00	BC 7933
		08.00	BC 7956	Met with Gelhaus.
			SE 3, Sea 2, Swell, few clouds
		12.00	BC 7963	Day's run:  Surfaced     132 nm
				Submerged     0  nm.
		16.00	BC 8718
			Increasing cloudiness, Vis. very good
		20.00	BC 8719
			SE 3, Sea 2-3, Swell, rain in places
		23.15	BC 8725	Begin fuel oil transfer to Gelhaus.
				Steamed into the light breeze with both E-motors KF, Swell abeam, both boats parallel, the bows connected with a cross line.  Oil transferred with the spare lubricating oil pump through drinking water hose and fuel oil hose, 11 cbm transferred.
		24.02.42	North Atlantic
		00.00	BC 8725
			Rain, Vis. low
		02.20	BC 8726	Oil transfer ended, continued return transit.
		04.00	BC 8731
		08.00	BC 8575
			Overcast, Vis. low
		11.18	BC 8558	Test dive.
		11.40		Surfaced.
		12.00		Day's run:  Surfaced     108.3 nm
				Submerged     1.7  nm.
		15.48	BC 8239	6 mastheads in sight bearing 145°T.  1 large freighter with 3 double masts distinguished, belonged to an already detected convoy.  Was apparently confirmed by Radio Message from Gelhaus a little later.
		16.00	BC8239
			Breaking up cloud deck
		20.00	BC 8613
		25.02.42	North Atlantic
		00.00	BC 8397
			Bright moonlit night with little wind and Sea
		04.00	BC 9172
		08.00	BC 9158
			NW 3, Sea 2
		12.00	BC 9163	Day's run:  Surfaced  168 nm.
		16.00	BC 9227
			Vis. good
		20.00	BC 9235

	Sun and Moon Data 22.02.42
	Sun and Moon Data 23.02.42
	Sun and Moon Data 24.02.42
	Sun and Moon Data 25.02.42

	- 18 -
		26.02.42	South of the Laura Ethel Bank
		00.00	BC 9313
			Overcast, calm
		04.00	BC 6997
		08.00	BD 4772
			Rain and totally low Vis.
		12.00	BD 4782	Day's run:  Surfaced     164 nm
				Submerged     0  nm.
		16.00	BD 4766
			SWS 5, Sea 4, rain, freshening
		20.00	BD 4845
		27.02.42	North Atlantic
		00.00	BD 4853
			S 8, Sea 6, abating, rain, Vis. low
		04.00	BD 4917
		08.00	BD 4921
			WSW 6, Sea 4, heavily overcast
		12.00	BD 4931	Day's run:  Surfaced     146 nm
		16.00	BD 5478	Submerged     0  nm.
			Vis. improving
		20.00	BD 5488
		xx.45		Test dive.
		xx.02		Surfaced.
		28.02.42	North Atlantic
		00.00	BD 5571
			Further abating, still high Swell
		04.00	BD 5558
		08.00	BD 5647
			Wind shifting to the S
		12.00	BD 5655	Day's run:  Surfaced     172.5 nm
				Submerged     0.95  nm.
		16.00	BD 6444
			SW 2, Swell, Vis. good
		xx.25		Crash dive for training.
		20.00	BD 6452
		01.03.42	North Atlantic
		00.00	BD 6461
			SSW 4, Sea 3, few clouds, Vis. good
		04.00	BD 6518
		08.00	BD 6529
			Freshening, overcast, rain, Vis. low
		12.00	BD 6617	Day's run:  Surfaced     171 nm
				Submerged     0  nm.

	Sun and Moon Data 26.02.42
	Sun and Moon Data 27.02.42
	Sun and Moon Data 28.02.42
	Sun and Moon Data 01.03.42

	- 19 -
		continued
		01.03.42
		16.00	BD 6637
			SSW 5, overcast, misty, rain, Vis. totally low
		20.00	BE 4421
		02.03.42	North Atlantic
		00.00	BE 4439
		02.07	Vis. improving	Submitted experience gained concerning favorable cruise settings to reach far distant areas by Radio Message.  Favorable cruising settings for Type VII C with Germaniawerft engines.
		04.00	BE 4529
		08.00	BE 4618
			Abating	Diesel-electric one diesel 240 RPM, the other 155 RPM.  On westerly transit average consumption of 15 liters/1 nm. Over ground, average day's run 134 nm, buoyancy condition "B".  On easterly transit 12.0 litters and 150 nm buoyancy condition "A", with mainly NW-SW wind.
		12.00	BE 4664	Day's run:  Surfaced     224 nm
				Submerged     0  nm.
		16.00	BE 5451
			Further abating, rain in places with Vis. changing
		20.00	BE 5463
		03.03.42	North Atlantic
		00.00	BE 5553
			Weather unchanged
		04.00	BE 5643
		08.00	BE 5662
			Decreasing cloudiness
		09.09		Test dive.
		09.23		Surfaced.
		12.00		Day's run:  Surfaced       273 nm
				Submerged    0.8  nm.
		16.00	BE 6543
			Lightly freshening
		20.00	BE 6563
		04.03.42	Bay of Biscay
		00.00	Wind and Sea from the WSW
		04.00	BF 4455
		08.00	BF 4546
			NW 2, Sea 1 increasing, clear, Vis. very good
		12.00	BF 4647	Day's run:  Surfaced      282 nm
				Submerged     0  nm.
		16.00	BF 4692
			High clouds
		17.53	BF 5472	1 drifting mine

	Sun and Moon Data 01.03.42
	Sun and Moon Data 02.03.42
	Sun and Moon Data 03.03.42
	Sun and Moon Data 04.03.42

	- 20 -
		continued
		04.03.42
		20.00	BF 5486
		05.03.42	Off Western France
		00.00	BF 5584
			Abating wind and Sea from the NNE, in places misty
		04.00	BF 5595
		xx.00	Point Tanne	Ran on the prescribed Route ([illegible 5 named points starting with Tannenadel ending in Rose])
		xx.40	Point 34	Taken in convoy by 2 patrol boats.
			Swell, cloudy, misty
		12.00	Between Point 33c and 33x	Day's run:  Surfaced      266 nm
				Submerged      0  nm.
		16.00	Between Point L8 and 33j
			W 1, Sea 1, heavily cloudy
		20.00	On Route Rosa
		xx.45	BF 5282	Dived to put the boat on the bottom.
		xx.52		Because the boat does not lay calmly, again surfaced and anchored in 78 meters water.
		06.03.42
		00.00	BF 5252
			Wind and Sea from the NNW
		04.00	BF 5252
		xx.00	BF 5252	Raised anchor, headed for Point 32.
		xx.10	Point 32	Taken in convoy by 2 patrol boats.
			Freshening, cloudy
		xx.15		Escorted by Sperrbrecher.
		xx.30		Made fast Brest.

	Sun and Moon Data 04.03.42
	Sun and Moon Data 05.03.42
	Sun and Moon Data 06.03.42

	Enclosures to U-564's KTB - click on the text at left to proceed to the document
Torpedo	Torpedo firing reports
Radio	Excerpt of the Radio Log

	Comments of the Befehlshabers der Unterseeboote
	on the Kriegstagebuch of "U-564" from 1.11.41 - 6.3.42.
	1.)        The patrol had to be broken off early because the outer tube doors were not operable due to the ramming with "U-107" 2.)        The ramming was the result of incorrect behavior of the Kommandant during the approach of both boats.  As a result he spoiled the great success that might have followed. 3.)        The demolition of ships promises the greatest success when the explosive charge is mounted on a line outboard below the waterline of the ship to be blown up. 4.)        The requirement to create a usable U-Boat sextant is known. So far, however, all such attempts have been unsuccessful.
		Signed in draft:  D  ö  n  i  t  z
		For correctness:
		Leutnant z.S. and Adjutant

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