U-564 - 5th War Patrol

Translation by Jerry Mason

Departed
Date
Arrived
Sunk
Days at Sea
Brest
4 April 1942
Brest
6 June 1942
64

 

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

Ships Attacked
Date
KTB Time
Position
Ship
Tons
Nationality
Convoy
3 May 42
08.24 - 08.55
28°21'N, 80°14'W
OCEAN VENUS
7,174
British
4 May 42
19.04
26°33'N, 80°03'W
ECLIPSE (damaged)
9,767
British
ON-87
5 May 42
04.53
27°15'N, 80°06'W
DELISLE (damaged)
3,478
British
8 May 42
08.12
26°33'N, 79°57'W
OHIOAN
6,078
British
9 May 42
10.02
26°21'N, 79°57'W
LUBRAFOL
7,138
Norwegian
 
14 May 42
07.17
26°21'N, 79°57'W
PORTERO DEL LLANO
4,000
Mexican
     
 Total = 37,635
   
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  : Kapitänleutnant  S  u  h  r  e  n.  
           
           
                 
           
           
                             Beginning:         7.  3. 1942  
         
                             Ending:             6.  6. 1942.  
           
           
           
           
           
           
           
           
           
           
       
           
           
         © U-boat Archive 2014  - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 2 -
 
           
           
           
           
    07.03.42 Brest Torpedo, munitions and provisions unloading.  
        Shipyard conference.  
    08.03.42 Brest Docked, begin shipyard work.  
    29.03.42   Undocked.  
    30.03.42   Dockyard testing.  
    31.03.42   Dockyard trim test, degaussing, radio direction finder calibration.  
                                             
    01.04.42 Brest Torpedo and munitions loading.  
        Final adjustments.  
    02.04.42   Took over the boat from the shipyard.  
    03.04.42   Provisions loaded  
    04.04.42   Fresh provisions loaded, final trim test.  
    20.00   Departed Brest.  Convoy of one Sperrbrecher (to B IV) and 2 Vorpostenbooten (to x 32).   Proceeding on Route "Rosa" to Lorient.  
                                             
    05.04.42    
    08.00 L2 Inbound escort.  Met "U-129".  
    09.30 Lorient Made fast berth A 1.  Took on fuel and water.  
    20.00   Departed in convoy to L2 - proceeded alone on route "Rosabella, Cederland, Tannennadel."  
                                             
    06.04.42    
    04.10 Point Tanne Headed for square CA via the southern route assuming better weather there.  
    08.24 Bay of Biscay Dived to proceeed submerged per standing orders.  
    21.05   Surfaced.  
    24.00 BF 5478    
      SSW 5, Sea 4, overcast, Vis. 1.5 nm    
                                             
    07.04.42      
    04.00 BF 4931    
      Wind shifting to the SW    
    08.00 BF 4913    
    08.12   Dived to proceed submerged.  
    12.00 BF 4914 Day's run:     Surfaced:  119.7 nm  
                         Submerged:    36.3 nm.  
    16.00 BF 4836    
    20.00 BF 4837    
           
Sun and Moon Data 04.04.42
Sun and Moon Data 05.04.42
Sun and Moon Data 06.04.42
Sun and Moon Data 07.04.42
 
- 3 -
 
           
           
           
           
    07.04.42      
    xx.50   Surfaced.  
    xx.00   Kommandant overboard.  
    xx.x4   Kommandant retreived.  
    24.00 BF 4827    
      Wind and Sea from the SW, lightly cloudy                                      
         
    08.04.42    
    04.00 BF 4841    
      Rain    
    08.00 BF 4764    
    12.00 4757 Day's run:     Surfaced:  80.5 nm  
      Vis. good                  Submerged:  31.5 nm.  
    16.00 BF 4771    
    20.00 BF 6991    
      SW 5, Sea 3-4, overcast    
    24.00 BE 6985    
      Strengthening wind, rain                                      
         
    09.04.42    
    04.00 BE 6975    
    08.x3 BE 6899 Dived for poor weather and visibility.  
    12.00 BE 6897 Day's run:     Surfaced:  88 nm  
                         Submerged:  14 nm.  
    xx.x5   Surfaced.  
    16.00 BE 6889    
      Vis. very good    
    20.00 BE 9213    
      Slowly abating wind and Sea, overcast    
    24.00 BE 9135    
      Vis. very poor                                      
         
    10.04.42    
    04.00 BE 9125    
      W 2-3, Sea W 1-2, heavily cloudy    
    08.00 BE 9118    
      Wind freshening, shifting to the SW    
    12.00 BE 8361 Day's run:     Surfaced:  122.5 nm  
      Wind and Sea SSW 3, broken cloud deck                  Submerged:     7.5 nm.  
    16.00 BE 8354 Western Bay of Biscay  
      Vis. good    
    20.00 BE 6269    
      S 4, Sea S 3    
    24.00 BE 8262    
      Freshening wind from the SSE, Vis. very poor                                      
         
           
Sun and Moon Data 07.04.42
Sun and Moon Data 08.04.42
Sun and Moon Data 09.04.42
Sun and Moon Data 10.04.42
 
- 4 -
 
           
           
           
           
    11.04.42      
    04.00 BE 8272    
    08.00 BE 8195    
      Wind and Sea SW 3, overcast    
    08.30   Test dive.  
    08.55   Surfaced.  
    12.00 BE 8188 Day's run:     Surfaced:  148.35 nm  
      Wind from the SSW, Vis. good                  Submerged:     1.65 nm.  
    16.00 BE 8178    
    20.00 BE 7398    
      Weather unchanged    
    24.00 BE 7622    
      Wind shifting to the SW                                      
         
    12.04.42    
    04.00 BE 7613    
      Vis. very poor    
    08.00 BE 7614    
    12.00 BE 7634 Day's run:     Surfaced:  117 nm  
      Freshening wind from the W, increasing cloudiness                  Submerged:    -- nm.  
    16.00 BE 7525    
      Vis. medium    
    19.35   Dived to proceed submerged.  
    20.00 BE 7516    
    24.00 BE 7514                                      
         
    13.04.42    
    04.00 BE 7438    
    08.00 BE 7438    
    08.10   Surfaced.  
    12.00 BE 7452 Day's run:     Surfaced:  35.1 nm  
      Slight wind from the WNW, light swell, Vis. good                  Submerged:  40.9 nm.  
    16.00 BD 9667    
      Decreasing cloudiness, Vis. very good    
    20.00 BD 9681    
      Wind shifting to the SSW, freshening, light swell    
    24.00 BD 9593    
      Wind and Sea from the SW, overcast, Vis. poor                                      
         
         
           
Sun and Moon Data 11.04.42
Sun and Moon Data 12.04.42
Sun and Moon Data 13.04.42
 
- 5 -
 
           
           
           
           
    14.04.42 North of the Azores    
    04.00 BD 9585    
      Increasing Sea    
    08.00 BD 9577    
      Wind shifting to the WSW    
    12.00 BD 9731 Day's run:     Surfaced:  187 nm  
                         Submerged:     -- nm.  
    16.00 BD 9716    
      Broken cloud deck, Vis. medium    
    20.00 BD 8938    
    24.00 BD 8951    
      Wind and Sea SW 3                                      
         
    15.04.43 North Atlantic  
    04.00 BD 8944    
      Clear night    
    08.00 BD 8891    
      Increasing cloudiness, Vis. good    
    12.00 BD 8884 Day's run:     Surfaced:  160 nm  
      SSW 5, Sea SSW 4, overcast, occasionally decreased visibility due to fog                  Submerged:      0 nm.  
    16.00 BD 8877    
      Wind and Sea from the WSW, Vis. good    
    20.00 CE 1232    
      West wind, partly cloudy    
    24.00 CE 1224                                      
         
    16.04.42    
    04.00 CE 1241    
      Weather unchanged    
    08.00 CE 1155    
      Light NW wind    
    09.10   Test dive.  
    09.35   Surfaced.  
    12.00 CE 1147 Day's run:     Surfaced:  158 nm  
      Vis. very good                  Submerged:      2 nm.  
    16.00 CD 3386    
      WNW 3, Sea 2    
    20.00 CD 3378    
      Abating wind and Sea    
    24.00 CD 3523    
      Light swell, Vis. good                                      
           
Sun and Moon Data 14.04.42
Sun and Moon Data 15.04.42
Sun and Moon Data 16.04.42
 
- 6 -
 
           
           
           
           
    17.04.42      
    04.00 CD 3517    
      Wind shifting to the NNW, Vis. medium    
    08.00 CD 3455    
      Overcast, fog    
    12.00 CD 2669 Day's run:     Surfaced:  175 nm  
                         Submerged:      0 nm.  
    16.00 CD 2684    
      SE 3, Sea 2, Vis. good    
    20.00 CD 2599    
      Freshening wind    
    24.00 CD 2824    
      Vis. very good                                      
         
    18.04.42    
    04.00 CD 2739    
    08.00 CD 2754    
      SE 5, Sea 4    
    12.00 CD 1969 Day's run:     Surfaced:  172 nm  
      Weather unchanged                  Submerged:    -- nm.  
    16.00 CD 1982    
      Wind shifting to the SSW, Vis. medium    
    20.00 CD 1978    
      Increasing cloudiness    
    24.00 CD 4212    
      Overcast                                      
         
    19.04.42    
    04.00 CD 4137    
      WSW 4, Sea 3    
    08.00 CD 4152    
      Wind shifting to the SW, overcast, rain    
    10.20   Test dive.  
    10.41   Surfaced.  
    12.00 CD 4148 Day's run:     Surfaced:  166 nm  
      Weather unchanged                  Submerged:     2 nm.  
    16.00 CC 6395    
      Freshening wind, Vis. medium    
    20.00 CC 6388    
    24.00 CC 6615    
      Abating                                      
         
Sun and Moon Data 17.04.42
Sun and Moon Data 18.04.42
Sun and Moon Data 19.04.42
 
- 7 -
 
           
           
           
           
    20.04.42      
    04.00 CC 6561    
      SW 3, Sea 2, overcast, very dark night    
    08.00 CC 6554    
      Lightening and rain squalls    
    12.00 CC 6495 Day's run:     Surfaced:  145 nm  
      Wind and Sea from the SSE, freshening, rain, Vis. poor                  Submerged:     0 nm.  
    16.00 CC 6488    
    20.00 CC 6715    
      Fog    
    24.00 CC 5938    
      Wind and Sea from the W                                      
         
    21.04.42    
    04.00 CC 5952    
      W 4, Sea 3, overcast, Vis. medium    
    08.00 CC 5947    
    10.20   Test dive to test depth.  
    11.22   Surfaced.  
    12.00 CC 5894 Day's run:     Surfaced:  140.6 nm  
      Abating                  Submerged:     3.4 nm.  
    16.00 CC 8221    
      Wind and Sea from the SSE, fog    
    20.00 CC 8215    
      Clear, Vis. very good    
    24.00 CC 8161                                      
         
    22.04.42    
    04.00 CC 8173    
      Wind shifting to the SW    
    08.00 CC 7397    
    12.00 CC 7624 Day's run:     Surfaced:  155 nm  
                         Submerged:     0 nm.  
    16.00 CC 7539    
      Weather unchanged    
    16.40   "U-98" Wilhelm Schulze" in sight.  Position for transfer.  Schulze has been there a long time to meet the arriving boats, "Wilamewitz" and "Cremer" are away transferring provisions.  
    20.00 CC 7555    
    21.10   "U-333 Cremer" and "U 582 Schulte" in sight.  
    21.55   "U-Tanker" (459) Wilamowitz comes in sight.  
        Fuel and provisions transfer are discussed with "Wilamowitz".
    24.00   Slowly heading for CC 7585 together with the other boats.  
   

 

23.04.42

                                       
           
           
Sun and Moon Data 20.04.42
Sun and Moon Data 21.04.42
Sun and Moon Data 22.04.42
 
- 8 -
 
           
           
           
           
    23.04.42      
    04.00 CC 7585    
      Wind shifting to the SW abating, mid-level cloud deck    
    08.00 CC 7582    
      WNW 4, Sea 3    
    11.00   "Schulze" is finished taking on fuel oil.  
    12.00 CC 7555 Day's run:     Surfaced:  54 nm  
      weather abating, Vis. very good                  Submerged:    0 nm.  
    12.45   "U 571" Möhlmann in sight.  
    15.45   Begin provisions transfer.  At low speed side by side provisions are transferred back and forth by means of lines in sea-bags and waterproof canisters.  
    16.00 CC 7558    
    16.30   Provisions transfer ended.  
        2 torpedoes and fuel are taken over from "Cremer" (Finished about 20.45 hours)  
    20.00 CC 7555    
      WNW 2, Sea WNW 1, lightly cloudy, Vis. good    
    21.20   Begin maneuvering for fuel oil transfer.  
    22.00 to 23.15   Fuel oil transfer.  The tanker worked very well, fast and surely.  Subsequently, backed away.  Fuel delivery worked satisfactorily.  The type VII boats usually require only fuel oil (30-40 cbm).  No lubricating oil transfer is recommended giving the tanker a simple hose connection on board.  The existing gear with its heavy hawser and double hose lines is heavy enough for the transfer of small quantities.  A manila fortified French fire hose (canvas, heavily rubberized inside, 18.2 cm in circumference, rubber has proved itself and is not worn) also worked well during oil transfer with U-107.  The tanker and boat could proceed with this equipment without an actual towing connection in formation with 50 meters crosswise and about 50-100 meters fore and aft.  The increased pumping time was then probably more than balanced by the decreased setting up and dismantling times, as well as by faster flushing and blowing the line empty.  The main advantage will be that oil can be delivered in larger seas than before.  
    24.00 CC 7555    
      Weather unchanged                                      
         
Sun and Moon Data 23.04.42
 
- 9 -
 
           
           
           
           
    24.04.42      
    04.00 CC 7557    
    08.00 CC 7467    
      Light fog, otherwise weather unchanged    
    10.28   Test dive.  
    10.55   Surfaced.  
    12.00 CC 7472 Day's run:     Surfaced:  106.15 nm  
      Wind shifting to ENE                  Submerged:      1.85 nm.  
    16.00 CB 9691    
      Vis. good    
    16.30   Raft in sight.  Opportunity to practice bombardment and drilling of the gun crew.  Determined:  Anti-armour ammunition is prone to frequent failures, cases jam and case base breaks off, (several times cases remained jammed in the cartridge chamber.)  
    20.00 CB 9676    
      Overcast, rain    
    24.00 CB 9595    
      Freshening winds, increasing Sea                                      
         
    25.04.42    
    04.00 CB 9584    
      Weather unchanged    
    08.00 CB 9497    
      Heavy rain, Vis. variable from 500-2000 meters    
    12.00 CB 9478 Day's run:     Surfaced:  180 nm  
                         Submerged:      0 nm.  
    16.00 CB 9471    
      Overcast, Vis. medium    
    20.00 CB 8682    
      Broken cloud deck    
    24.00 CB 8674                                      
         
    26.04.42    
    04.00 CB 8586    
      Wind shifting to the NNE    
    08.00 CB 8575    
      NE 4, Sea 4, overcast    
    11.08   Test dive (practice depth keeping at periscope depth)  
    12.00 CB 8497 Day's run:     Surfaced:  141.85 nm  
                         Submerged:   15      nm.  
    12.32   Surfaced.  
    16.00 CB 8479    
      Wind and Sea from the NNW, Vis. medium    
           
Sun and Moon Data 24.04.42
Sun and Moon Data 25.04.42
Sun and Moon Data 26.04.42
 
- 10 -
 
           
           
           
           
    26.04.42      
    20.00 CB 7932    
      Vis. good to very good    
    24.00 CB 7922                                      
         
    27.04.42    
    04.00 CB 7836    
      Abating    
    08.00 CB 7828    
      NNW 2, Sea 1-2    
    12.00 CB 7841 Day's run:     Surfaced:  162 nm  
                         Submerged:      0 nm.  
    16.00 CB 7758    
      Weather unchanged    
    17.37 CB 7773 Steamer observed bearing 135°T (course 290°, range estimated 8 nm, speed 9.5) maneuvered ahead.  To diving stations  
    18.51      
    18.52   Dived for submerged attack.  
    20.00 CA 9993    
    20.02   Closed to 500 meters.  Neutral (Swiss).  Type "ATHINA LIVANUS", yellow stack with blue-white ring and red five-pointed star.  No gun.  I did not stop steamer, since he rides in ballast and an investigation for banned items would be unsuccessful.  
    20.06   Dismissed from action stations.  
    20.21   Surfaced.  
    24.00 DC 9986    
      NNE 3-4, Sea 2-3, overcast                                      
         
    28.04.42    
    04.00 DC 3211    
      Abating    
    08.00 DC 3126    
      Broken cloud deck    
    09.57   Steamer with navigation lights in sight bearing 180°T (course 320°, estimated range 11 nm, speed 16 knots).  Steamer is very fast, requested to stop by searchlight.  Steamer stops, boat closed, Argentinean "RIO SAN JUAN " (Buenos Aires).   Steamer allowed to pass, per radiogram saying to avoid incidents with South American states.  
    12.00 DC 3114 Day's run:     Surfaced:  179.85 nm  
      Medium-high cloud deck                  Submerged:     6.15 nm.  
    13.10   Test dive.  
    12.25   Surfaced.  
    16.00 DC 2329    
      NNE 3, Sea 2, Vis. good    
    20.00 DC 2347    
      Weather abating, Vis. very good    
           
Sun and Moon Data 26.04.42
Sun and Moon Data 27.04.42
Sun and Moon Data 28.04.42
 
- 11 -
 
           
           
           
           
    28.04.42      
    24.00 DC 2285    
      Wind slowly shifting to the E, clear.                                      
         
    29.04.42    
    04.00 DC 2514    
      Wind and Sea from the SE, Vis. very good    
    08.00 DC 2452    
      Wind and Sea from the S, Vis. very good    
    12.00 DC 2447 Day's run:     Surfaced:  171.6 nm  
      Wind shifting to the W, slightly cloudy                  Submerged:     1.4 nm.  
    16.00 DC 1689    
      E 1-2, Sea 1, lightly cloudy, Vis. good    
    20.00 DC 1915    
      Clear    
    24.00 DC 1864                                      
         
    30.04.42    
    04.00 DC 1876    
      Wind shifting to the SE, bright night    
    08.00 DC 4135    
      Weather unchanged    
    12.00 DC 4154 Day's run:     Surfaced:  196 nm  
      Few clouds                  Submerged:     0 nm.  
    12.02   Test dive.  
    12.25   Surfaced.  
    16.00 DB 6393    
      Vis. good, heavily overcast    
    20.00 DB 6389    
      Clear, Vis. very good    
    21.48 DB 6624 Sailing vessel in sight bearing 180°T.  
    22.20   Sailing vessel out of sight (95°T).  
    24.00 DB 6619    
      Nearly overcast, Vis. good, wind and sea unchanged    
                                             
    01.05.42      
    04.00 DB 6564    
      Bright moonlit night    
    08.00 DB 6549    
      Weather unchanged, cloudiness decreasing    
    12.00 DB 6492 Day's run:     Surfaced:  171.9 nm  
                         Submerged:     1.1 nm.  
    16.00 DB 6735    
      Wind shifting to the NE, partly cloudy    
    16.45   Smoke cloud in sight bearing 260°T, maneuvered ahead.  
           
           
           
Sun and Moon Data 28.04.42
Sun and Moon Data 29.04.42
Sun and Moon Data 30.04.42
Sun and Moon Data 01.05.42
 
- 12 -
 
           
           
           
           
    01.05.42      
   

19.15

20.00

 

DB 6463

Dived for the attack.  English corvette "K-47" (course 0°, speed 15 knots) corvette zags shortly before firing, so that the range of fire becomes approximately 1500 meters.  I consider such a shot uncertain, surely I can make better use of the torpedo later.  
        Further pursuit useless, target too fast.  
    21.13   Surfaced.  
    21.15   Crash dive for aircraft.  
    22.30   Surfaced.  
    24.00 DB 6547    
      Wind slowly shifting to the SE                                      
         
    02.05.42    
    04.00 DB 6577    
      Scattered clouds    
    08.00 DB 6817    
      very bright moonlit night    
    12.00 DB 6871 Day's run:     Surfaced:  136.11 nm  
      Clear, Vis. very good                  Submerged:     2.89 nm.  
    16.00 DB 9136    
    18.06   3 aircraft sighted (briefly in view)  
    19.50   Crash dive for 3 aircraft.  
    20.00 DB 9162    
    20.30   Surfaced.  
    21.13   Crash dive for aircraft.  
    24.00 DB 9165                                      
         
    03.05.42    
    00.02   Surfaced.  
    04.00 DB 9186    
      ESE 2, Sea 1, scarcely cloudy, Vis. very good.    
    07.30 DB 9423 Steamer in sight bearing 230°T, maneuvered ahead.  
    07.40   To action stations.  
    07.45   Dive for submerged attack in the very bright moonlit night.  
    08.00 DB 9434 6000 GRT freighter (course 350°, estimated range 300 meters, speed 11 knots)  180 meters long.  
    08.24   Fire!  Hit amidships.  
    08.26   Surface!  Am fired at by the freighter.  
    08.36   Dived for 2nd attack.  
    08.55   Coup de grace fire!  Hit amidships.  Steamer breaks apart.  
    09.04   Surfaced!  Depart on the surface.  Dismissed from action stations.  
           
           
Sun and Moon Data 01.05.42
Sun and Moon Data 02.05.42
Sun and Moon Data 03.05.42
 
- 13 -
 
           
           
           
           
    03.05.42      
    12.00 DB 9466 Day's run:     Surfaced:  105.5 nm  
      Weather unchanged, Vis. very good                  Submerged:   15.5 nm.  
    12.35   Dived, due to heavy day air patrol.  
    16.00 DB 9466    
    17.15   Surfaced.  
    22.54   Crash dive for aircraft.  
    24.00 DB 9466                                      
         
    04.05.42    
    00.47   Surfaced.  
   

00.48

04.00

 

DB 9762                            Freshening, lightly cloudy

Smoke cloud in sight.  Steamer.  I attempt to maneuver ahead.  The enemy is very fast.  After 2 hour hunt lost sight in twilight.  Stopped, even though freighter is ahead 15° to starboard it went out of sight, because I assume that at night he decreased speed and he cannot evade to the west.  
    05.56 DB 9768 Masts in sight bearing 0°T.  Maneuvered ahead!  
        To action stations.  
    06.53   Dived for submerged attack!  
        Freighter (course 150°, estimated range 600 meters, speed 14 knots).  
    07.08   Fire!  (miss) speed underestimated (11.5 knots).  
    07.27   Surfaced.  Tried to maneuver ahead again.  This does not succeed, the opponent's speed is too great.   Steamer goes out of sight.  
        Whether this was the same or another freighter could not be determined.  
    08.00 DB 9796    
      E 3, Sea 2, lightly cloudy    
    11.56   Crash dive for aircraft.  
    12.00 DM 2313 Day's run:     Surfaced:  74.5 nm  
                         Submerged:  10.5 nm.  
    16.00 DM 2316    
    16.05   Propeller noises in the G.H.G..  Went to periscope depth.  Argentinean steamer, no attack made.  
    17.30   Several propeller noises in the G.H.G. and K.D.B., to periscope depth, a small tug, 2 freighters each of (1000 GRT), watering hoses, shortly thereafter a tanker (7000 GRT) with airplane escort (130 meters long).  
    18.08   To action stations! Submerged attack on the tanker (course 180°, estimated range 400 meters, speed 10 knots).  
           
Sun and Moon Data 03.05.42
Sun and Moon Data 04.05.42
 
- 14 -
 
           
           
           
           
    04.05.42      
    19.04   Fire!  Hit in the after third.  Stern of the tanker sags away. Tanker's crew abandons ship, afterwards it settles in approximately 25 meters water.  Stern is flooded.  A second torpedo would cause no further sinking of the tanker.  Stood off off 3000 meters, since I assume that other ships will drive a large sweep around firing position.  Aircraft looks for us.  
    19.25   Dismissed from action stations!  
    20.00 DM 2319    
    22.30   Fast propeller noises bearing 253°T in G.H.G.  
    22.40   To periscope depth!  Motor tanker (7500 GRT.)  One escort and 4 aircraft.  Tanker already has a broad angle and is about 3 nm distant, can not approach because of the strong northern current.  Observation:  All steamers on the western side have southern course in the Florida Straits.  
        Alternating at periscope depth and listening with sound gear. Thereby observed, that sound gear detects vessels earlier in the conditions prevailing off the coast.  Why the motor tanker was detected so late is unclear, it may be due to the strong temperature currents of the Gulf Stream.  
                                             
    05.05.42      
    02.45 Nightfall Surfaced.  
    04.00 DB 9662    
      Weather unchanged, Vis. medium, night    
    04.03   Masts in sight!  Forged ahead.  
    04.25   To action stations!  Freighter (4000 GRT.) (course 172°, estimated range 600 meters, speed 10 knots).  
        Surfaced attack (115 meters long).  
    04.53   Fire!  Hit amidships,  Crew abandons ship.  Steamer is aground. (Depth at the shot 18 meters so close to land)  
    05.15   Dismissed from action stations.  
    07.15 DB 9736 Escort vessel in sight.  Am detected by sight or sound and then illuminated by searchlight.  Artillery bombardment by escort vessel.  Escaped on the surface with 3 x AK plus E-motors.  
    08.00 DB 9733    
      Strongly cloudy    
    12.00 DB 9588 Day's run:     Surfaced:  72.7 nm  
      S 2, Sea 1, nearly overcast, Vis. medium                  Submerged:  29.3 nm.  
           
Sun and Moon Data 04.05.42
Sun and Moon Data 05.05.42
 
- 15 -
 
           
           
           
           
    05.05.42      
        I decide to look for north bound traffic in the Florida Straits and to unload my upper deck torpedoes.  
    16.00 DB 9596    
      Weather unchanged.    
    20.00 DB 9828    
      Vis. very good.    
    23.40   Begin reloading upper deck torpedoes.  
    24.00 DB 9883    
                                             
    06.05.42      
    00.05   Ended unloading.  
    04.00 DB 9897    
      ESE 2, Sea 1, mid-level cloud deck    
    08.00 DM 3147    
    08.05   Test dive.  
    08.32   Surfaced.  
    12.00 DM 2653 Day's run:     Surfaced:  179.3 nm  
                         Submerged:     6.7 nm.  
        Searched the west coast.  
    12.40 Dawn Steamer in sight.  
    12.48   Dived for aircraft.  Steamer makes for the "Cat Cays".  In 1-1/2 hour underwater travel its path is cut off.  When the battery reached 47°C we determined that the tanker is in fact the reported Swedish Ship "CAZELLA" which should transit the Florida Street at this time instead of another Tanker on the searched north route.  
    16.00 DM 2635 Remained submerged off "Cat Cay", no traffic.  
    20.00 DM 2638    
    22.12   Surfaced.  
   

23.50

24.00

 

DM 2625                                E 1, Sea 1, lightly cloudy

3 large tankers (course 180°) in sight.  Attempted approach. Despite highest possible RPM lost sight in the darkness. Tankers ran about 17 knots.  In the process the starboard diesel was driven to its knees.  A valve broke and wrecked the piston.  This was immediately put up, in order to continue on with 6 cylinders.  
                                             
    07.05.42      
    04.00 DM 2627    
      Freshening    
    04.20   Dived to listen.  Heard sounds bearing 55°.  
           
Sun and Moon Data 05.05.42
Sun and Moon Data 06.05.42
Sun and Moon Data 07.05.42
 
- 16 -
 
           
           
           
           
    07.05.42      
    04.25   Surfaced!  Small escort vessel.  
    05.47   Crash dive for aircraft.  
    05.57   Surfaced.  
    08.00 DM 2642    
      Weather unchanged.    
    09.20 DM 2615    
      Bright moonlit night Several masts in view, a small convoy of 5 steamers and 1 destroyer (course 180°).  Attempt to maneuver ahead on the surface.  Starboard diesel inoperative, valve disk is broken, therefore proceeding on 1 engine.  We are detected by the destroyer and fired upon.  
    10.20   Crash dive!  2 fillings of main ballast and reserve fuel oil tank 4 are blown.  
    10.45   3 depth charges.  Afterwards peace.  
    12.00 DM 2349 Day's run:     Surfaced:  31.7 nm  
                         Submerged:  51.3 nm.  
    16.00 DM 2346    
    20.00 DM 2343    
    24.00 DM 2319                                      
         
    08.05.42    
    02.45 Dusk Surfaced.  
    04.00 DM 2313 Ran in toward the coast, searched back and forth there.  
      Abating wind and sea from the NE    
    08.00 DM 9796    
      ESE 2-3, Sea 0-1, clear moonlit night    
    12.00 DM 2319 Day's run:     Surfaced:  23.7 nm  
      Weather unchanged, few clouds, Vis. very good                  Submerged:  38.3 nm.                                        Dived.  
    16.00 DM 2316    
    18.04 DM 2316 Sounds in the G.H.G., went to periscope depth.  
    18.05   To action stations!  Freighter for heavy cargo (5000 GRT.)  (course 0°, estimated range 1000 meters, speed 10 knots) loaded.  
    18.12   Fire!  Hit aft 20 meters.  High detonation plume.  Immediately went deep for aircraft.  After not quite 5 minutes one heard the sinking of the steamer in the boat. 7 minutes after firing went to periscope depth for a sweep  Steamer was not to be seen (130 meters long).  
    18.27   Dismissed from action stations.  
    20.00 DM 2313    
    23.45   Heard sounds on G.H.G., to periscope depth.  an American yacht, unfortunately already a large target angle, approach not possible, the yacht is too fast.  
           
Sun and Moon Data 07.05.42
Sun and Moon Data 08.05.42
 
- 17 -
 
           
           
           
           
    08.05.42      
    24.00 DB 9799    
                                             
    09.05.42      
    04.00 DM 2313 Surfaced!  In the lightening sighted two escort vessels on the same course as us. (Coastal patrol boats "ARGO Class")  Out maneuvered.  
      SE 1, Sea 1, overcast, rain, lightening. Vis. about 1000 m  
    08.00 DM 2343    
      Wind shifting to the SSW, clear, Vis. good, isolated summer lightening    
    09.40 DM 2346 Two masts sighted, 1 escort vessel and 1 tanker (8000 GRT, length 140-150 meters) maneuvered ahead!  
    09.50   To action stations!  
    10.02   (Course 0°, estimated range 600 meters, speed 10 knots) loaded!  Fire!  Hit ahead 30 meters, 1 white flash, then high explosion plume and red firey glow, within 3 minutes the tanker is a blazing inferno.  After firing immediately turned away and ran off.  Escort vessel fires individual star shells. While running off main balast tank 3 is blown into the water on both sides of conning tower, making listening more difficult for the escort.  
    10.15   Dismissed from action stations.  
    12.00 DM 2349 Day's run:     Surfaced:  31.3 nm  
      Wind from the SW slowly fresening, strongly cloudy, Vis. good                  Submerged: 34.7 nm.  
    12.02 Dawn Dived.  
    16.00 DM 2349    
    20.00 DM 2349    
    21.25   Depth charge detonations heard far away.  
    24.00 DM 2343                                      
         
    10.05.42    
    02.15 DM 2343 Propeller noises in the G.H.G., to periscope depth, 2 escort vessels type "ARGO", 1 lies stopped, the other moves back and forth at high speed.  I move away submerged.  I want to go to periscope depth for another sweep, when the stationary escort vessel moves towards us and passes overhead.  To depth A +55 meters, 5 depth charges.  Heavy concusions in the boat.  
        Failures: much glass and fuse damage, gyro-compass repeater failed, the rolling jaw for the onboard casing of the attack periscope torn from the pressure hull.  Rubber seated valves sprang open.  main ballast and reserve fuel oil tanks 4 battered, no further pursuit.  
    04.00 DM 2343    
           
Sun and Moon Data 08.05.42
Sun and Moon Data 09.05.42
Sun and Moon Data 10.05.42
 
- 18 -
 
           
           
           
           
    10.05.42      
    04.03   Surfaced.  
    08.00 DM 2379 Heavy air patrol.  Approached several times by aircraft.  
      Dark night, wind and Sea unchanged, strongly cloudy    
    12.00 DM 2324 Day's run:     Surfaced:  11.8 nm  
      Weather unchanged                  Submerged: 36.2 nm.  
    13.50   Crash dive for aircraft.  1 depth bomb.  No damage.  
    16.00 DM 2626    
    17.00   Surfaced.  
    18.26   Crash dive for aircraft.  4 well-placed depth bombs.  Water intake from tube II, as the torpedo had just been moved and the rear door of the torpedo tube was open.  
    20.00 DM 2637    
    22.25 NE 2, Sea 1, Vis. good, medium-high cloud deck Steamer in sight, maneuvered ahead.  
    23.45   Dived for submerged attack.  Freighter "WHIPPLE BLUEFIELDS NICARAGUA" (433 GRT.).  Too small for a torpedo.  Artillery not used because of air surveillance.  Want to remain unseen.  
    24.00 DM 2662                                      
         
    11.05.42    
    01.25   Surfaced.  
    04.00 DM 2932    
      Wind and Sea unchanged, overcast, heavy lightening, occasional rain, Vis. 500 m    
    08.00 DM 2967    
      Wind and Sea shifting to the E, strongly cloudy, Vis. about 2.5 nm    
    12.00 DM 5335 Day's run:     Surfaced:  119.7 nm  
      SE 2, Sea 1-2, Vis. good                  Submerged:   16.3 nm.  
    16.00 DM 6142    
      Wind fresening, medium-high cloud deck, Vis. very good    
    19.20   Dived for aircraft (Want to remain unseen).  
    20.00 DM 6117    
    24.00 DM 6412                                      
         
Sun and Moon Data 10.05.42
Sun and Moon Data 11.05.42
 
- 19 -
 
           
           
           
           
    12.05.42      
    02.15   Surfaced.  
    04.00 DM 6451    
      Wind and Sea from the SE, few clouds    
    08.00 DM 6541    
      Wind shifting to the ESE, clear, bright starlit night    
    12.00 DM 6586 Day's run:     Surfaced:  99.5 nm  
      Medium-high cloud deck, Vis. about 6 nm, dawn                  Submerged:  38.5 nm.  
      Dived.  
    16.00 DM 6599    
    20.00 DM 6599    
    22.12   To periscope depth, 1 small (2-300 GRT.) steamer, attack is not worthwhile. (course 135°)  
    24.00 DM 6599                                      
         
    13.05.42    
    00.03   To periscope depth, small steamer (200 GRT.) attack not worthwhile (course 305°)  
    02.48 Dusk Surfaced.  
    04.00 DM 6591 No traffic is found, I will return to the previous area of operations.  
      Wind and Sea from the NE, freshening, few clouds, bright starlit night  
    08.00 DM 6545    
      Weather unchanged    
    12.00 DM 6422 Day's run:     Surfaced:  97.8 nm  
      SE 2, Sea 1, lightly cloudy, Vis. very good                  Submerged:    7.2 nm.  
    16.00 DM 6148    
      Weather unchanging    
    20.00 DM 5536    
      Wind shifting to the E, increasing cloudiness    
    22.25   Crash dive for 3 aircraft.  
    23.05   Surfaced.  
    23.10   Crash dive for aircraft.  
    24.00 DM 2995                                      
         
    14.05.42    
    00.28   Surfaced.  
    01.25   Crash dive for airship.  
    02.05   Surfaced.  
    02.07   Crash dive for aircraft.  
    02.55   Surfaced.  
           
Sun and Moon Data 12.05.42
Sun and Moon Data 13.05.42
Sun and Moon Data 14.05.42
 
- 20 -
 
           
           
           
           
    14.05.42      
    04.00 DM 2929    
      E 1-2, Sea 1, starry clear night    
    06.45 DM 2688 Dimly lit vessel in sight.  
    06.48   To action stations.  Colors not yet determined at approximately 1000 meters (tanker 4-5000 GRT.) loaded, length 115 m, course 0° estimated range 1250 meters, speed 10 knots.  
        A darkened escort vessel is followed by a tanker displaying neither correct lighting or proper neutrality markings.  On the stern stands a sign, displaying vertical colors going from left to right red-white-blue or grey or black.  
        Without a doubt, this tanker is making for an American port. Our friendship does not go so far, every foreigner believes they can capitalize on our patience.  
        Fire!  Hit forward 20 meters.  The tanker burns, ran off, an aircraft circles over the burning ship  
    07.26   Dismissed from action stations.  
    08.00 DM 2654    
    09.25 Weather unchanged    
    09.50   Sent radio message concerning sinking.  Crash dive for aircraft with searchlight. (Suspect cooperation between any land station and/or an escort aircraft taking bearings on our radio transmission to enable switching searchlight on at approximately 200 meters range from the boat and passing about 50 meters aft of the stern)  
    10.05   Surfaced.  
    11.47   Dived.  
    12.00 DM 2685 Day's run:     Surfaced:  84.5 nm  
                         Submerged: 42.5 nm.  
    12.45   Sounds heard in G.H.G., to periscope depth.  
    12.54 DM 2685 2 Navy tankers (each 8000 GRT.) and 2 passenger-freighters with a 4-stacked destroyer in sight.  Submerged attack (course 340°, estimated range 300-500 meters, 11 knots)  
    13.14   1. Fire!  
    13.15   2. Fire!  Both missed!  Probably torpedo failures as the values were exact and the range very short.  
    16.00 DM 2685    
    20.00 DM 2682    
    24.00 DM 2683                                      
         
           
Sun and Moon Data 14.05.42
 
- 21 -
 
           
           
           
           
    15.05.42      
    02.43   Surfaced.  
    03.10 DM 2685 Masts in sight!  Maneuvered ahead!  
    03.15   To action stations!  Steamer (500 GRT.) (course 230°, estimated range 300 meters, speed 10 knots)  Steamer is too small.  
    04.00 DM 2683    
      NE 1-2, Sea 0-2, lightly cloudy    
    04.30   Dismissed from action stations.  
    08.00 DM 2918    
      Wind and Sea shifting to the SE, clear Vis. medium    
    11.57   Dived.  
    12.00 DM 2864 Day's run:     Surfaced:  31 nm  
                         Submerged: 35 nm.  
    16.00 DM 2913    
    24.00 DM 2687                                      
         
    16.05.42    
    02.35   Surfaced.  
    04.00 DM 2684    
      SSE 2, Sea 1, lightly cloudy, Vis. good    
    08.00 DM 2649    
      Wind and Sea from the ESE, freshening, increasing cloudiness    
    11.53   Dived.  
    12.00 DM 2684 Day's run:     Surfaced:  58.5 nm  
                         Submerged:  35.5 nm.  
    16.00 DM 2684    
    20.00 DM 2682    
    24.00 DM 2682                                      
         
    17.05.42    
    02.45 Dusk Surfaced.  
    04.00 DM 2655    
      Wind calm, partly cloudy, Vis. poor    
    08.00 DM 2372    
      SSE 1, Sea 0-1, overcast, Vis. medium    
    11.25 Dawn Dived.  
    12.00 DM 2316 Day's run:     Surfaced:  71.7 nm  
                         Submerged:  37.3 nm.  
           
Sun and Moon Data 15.05.42
Sun and Moon Data 16.05.42
Sun and Moon Data 17.05.42
 
- 22 -
 
           
           
           
           
    17.05.42      
    16.00 DM 2316    
    20.00 DM 2316    
    24.00 DM 2313                                      
         
    18.05.42    
    02.52 Dusk Surfraced.  
    04.00 DM 2313    
      NE 2, Sea 1, partly cloudy, Vis. good    
    08.00 DB 9799    
      Increasing cloudiness, starlit night, Vis. medium    
    11.25 Dawn Dived.  
    12.00 DN 9796 Day's run:     Surfaced:  14.7 nm  
                         Submerged:  35.7 nm.  
    13.40 DB 9793 Propeller noises in the G.H.G..  Went to periscope depth.  A convoy is visible in the perscope target angle 80° at approximately 8-1000 m range.  14 tankers and ships.  At the head a trawler-type escort.  On our side a destroyer, also strong air escort.  No possibly of attacking because of distance.  The convoy moves along the coast the same distance offshore as independents.   Boat is positioned between coast and convoy.  Despite the unfavorable position and the early time of the day, I decide to set off under water from the coast on the same route in order to maintain contact for a night attempt.  
    14.00   Convoy moves along the coast, while the convoy changes course from 160° to 180°, we steer 120° with both motors HF.  
    16.00 DB 9874    
      Vis. very good, light choppy Sea.    
    16.22   Convoy no longer in sight, surfaced.  With an observed enemy speed of 9 knots, the convoy must now bear 200° at 18 nm.  Now and then an exact bearing is possible based on smoke clouds.  Escort aircraft are often seen over the convoy however they can not see us due to the large distance.  Good visibility and choppy sea makes contact keeping possible.  When aircraft approach within approximately 10 nm we do not dive, but only slow to let the long white wake disappear and show the most narrow silhouette.  
    19.45   Crash dive for aircraft, obviously a training flight (Flght school "Miami").  
           
Sun and Moon Data 17.05.42
Sun and Moon Data 18.05.42
 
- 23 -
 
           
           
           
           
    18.05.42      
    20.00 DM 2335 The lead aircraft of the very highly flying formation changes course before diving on us.   A badly placed depth bomb proves that it had seen us.  
    20.23   Surfaced.  Pursuit continued.  Smoke clouds bear 245°T at 20 nm.  
    21.50   Crash dive.  3 aircraft.  
    22.15   Surfaced.  
    22.35   Crash dive for destroyer which comes in sight on course 40° and passes abeam to port.  
    23.25   Surfaced.  
    24.00 DM 2392                                      
         
    19.05.42    
    00.08   Two mastheads bearing 150°T.  Convoy bears 255° at 17 nm.  I decide not to dive but to avoid the mastheads by closing the convoy.  We approach to 15 nm abeam the convoy, who's location becomes apparent by the aircraft.  We can run only a short time at maximum speed, since we must slow for aircraft frequently.  As a result, although we dive less than 90 min, the bearing to the convoy is unchanged.  
    02.00   Finally the sun goes down and dusk begins.  We approach nearer.  
    03.12   Shadows of the convoy come into view.  The location of the convoy is also established by aircraft with lights circling above it.  
    03.25   To action stations.  3 bow and 1 stern torpedo reamain, if at all possible they should reach their targets.  I consider the defenses of the convoy and determine there is a destroyer in front and behind and one to each side.  In the meantime the aircraft flew off, there is no longer an air escort.  Soon the moon will set.  I want to move ahead easing between the port flank destroyer and the convoy.  We have the port flank destroyer astern and are attempting to gain a position further ahead of the targets when the convoy turns 20° to starboard.  The destroyer also tries to get ahead and now approaches precariously close.  Due to defective diesels we can run only as high as 14 knots, without consideration for the diesels we go to AK however the destroyer seems within  
           
           
           
Sun and Moon Data 18.05.42
Sun and Moon Data 19.05.42
 
- 24 -
 
           
           
           
           
    19.05.42      
    04.00 DM 2635 visible range of our wake.  We notice that it turns on its searchlight and turns hard to port.  A few seconds later more searchlights from the destroyer and we crash dive.  
    04.45   We hear shells detonate, in addition the destroyer looked for us directly ahead with the searchlight.  Proof that not the boat but only the bright wake was seen.  Further active sonar, no depth charges.  We run off under water to the east.  Astern quiet, slow screw noises on the surface main ballast tank 3/ submerged main ballast and reserve fuel oil tank 4 are blown, in order to divert pursuers.  
   

05.09

 

 

08.00

 

 

 

DM 2685                              ENE 3-4, Sea 2-3, lightly cloudy, hazey, dark

 

Surfaced (with minimum blowing) 1000 meters astern the destroyer is apparently stopped transverse to our course.  Proceed on E-motors, finished blowing and ran astern the convoy.  The destroyer remains in the original positon, we make for the unguarded port side of the convoy.  When we again reach a target angle of 60° the destroyer approaches so closley that I have the feeling we are sighted again.  We go immediately to KF and turn toward the convoy. The destroyer swerves again and passes the boat 600 meters behind the stern.  Although the firing position is not as favorable as desired, I decide, despite 3000 meters distance, to shoot.  
    08.17   Shot 1.     on 180 meter long freighter.  
    08.18 DM 2679
Shot 2.) on 4 overlapping steamers.
Shot 3.)
 
    08.21    
        Shot 2 jumps twice in full length steeply out of the water, shot 3 is a tube runner and is ejected 2 minutes later.  All 3 miss.  
        Because of the close proximity of the destroyer turning and shooting with the stern torpedo is not possible.  We ease out astern and I again try to maneuver between the destroyer and convoy from astern.  When at a target angle of 120° from a tanker, a destroyer is seen aproaching at high speed from astern.  
    09.52   Crash dive!  A further attempt by surfacing quickly and approaching to shoot before dawn offers no prospects.  I begin the return to base with the stern torpedo still remaining.  
    10.35   Surfaced.  
           
           
           
Sun and Moon Data 19.05.42
 
- 25 -
 
           
           
           
           
    19.05.42      
    11.30 Dawn Dived.  
    12.00 DM 2682 Day's run:     Surfaced:  114.9 nm  
                         Submerged:    37.1 nm.  
    16.00 DM 2627    
    20.00 DM 2621    
    24.00 DM 2381                                      
         
    20.05.42    
    02.50 Dusk Surfaced.  
    04.00 DB 9799    
      NE 3, Sea 2-3, partly cloudy , Vis. good    
    08.00 DB 9735    
      Wind shifting to the E, increasing cloudiness, Vis. poor    
    12.00 DB 9547 Day's run:     Surfaced: 166 nm  
      Wind and Sea from the ESE, abating, Vis. good                  Submerged:    8 nm.  
    16.00 DB 9537    
      ENE 2-3, Sea 2, clear, Vis. very good    
    20.00 DB 9379    
      Abating    
    24.00 DB 9364    
      Increasing cloudiness                                      
         
    21.05.42    
    02.50   Test dive.  
    03.35   Surfaced.  
    04.00 DC 7115    
      Freshening, bright night    
    08.00 DC 4786    
      Clear, Vis. very good    
    12.00 DC 4844 Day's run:     Surfaced: 210.4 nm  
                         Submerged:     1.6 nm.  
    16.00 DC 4824    
      ENE 2, Sea 1, lightly cloudy, Vis. very good    
    20.00 DC 4595    
    24.00 DC 4645    
      Weather unchanged                                      
         
    22.05.42    
    04.00 DC 4628    
      Wind and Sea from the E    
    08.00 DC 4399    
      Rain squalls    
    12.00 DC 5157 Day's run:     Surfaced: 180 nm  
                         Submerged:     0 nm.  
           
           
           
Sun and Moon Data 19.05.42
Sun and Moon Data 20.05.42
Sun and Moon Data 21.05.42
Sun and Moon Data 22.05.42
 
- 26 -
 
           
           
           
           
    22.05.42      
    16.00 DC 5137    
      ESE 3, Sea 2, strongly cloudy, rain    
    20.00 DC 2878    
      Abating    
    24.00 DC 2859    
      Light swell, overcast, rain                                      
         
    23.05.42    
    01.17   Mast tops in sight bearing 55°T.  Apparent a fast Navy tanker. Lost sight in 5 minutes because target angle of 0° or 180°.  I turn immediately to the course of the last bearing, which had shifted quickly to 66°.  Steamer must steer a SE course, however uncertain.   He may have seen us.   Hunted for 2 hours in vain.  Lost from sight in rain squalls.  
    03.22   Dived to listen!  Nothing heard.  
    03.46   Surfaced.  
    04.00 DC 2945    
      Partly cloudy, bright night    
    08.00 DC 2923    
      Wind and Sea shifting to the S    
    12.00 DC 3471 Day's run:     Surfaced: 196.9 nm  
      Freshening, Vis. good                  Submerged:    1.1 nm.  
    16.00 DC 3452    
      S 2, Sea 2, few clouds    
    20.00 DC 3433    
      Vis. very good.    
    24.00 DC 3256                                      
         
    24.05.42    
    04.00 DC 2314    
      Weather unchanged, dark night    
    08.00 CB 7783    
    12.00 CB 7841 Day's run:     Surfaced: 213 nm  
      Weather unchanged, Vis. very good                  Submerged:   --  
    16.00 CB 7841    
      Freshening    
    20.00 CB 7672    
    24.00 CB 7626    
      S 4, Sea 3                                      
         
    25.05.42    
    04.00 CB 7396    
      Partly cloudy, bright moonlit night    
    08.00 CB 8155    
      Increasing cloudiness    
           
Sun and Moon Data 22.05.42
Sun and Moon Data 23.05.42
Sun and Moon Data 24.05.42
Sun and Moon Data 25.05.42
 
- 27 -
 
           
           
           
           
    25.05.42      
    12.00 CB 8136 Day's run:     Surfaced: 210 nm  
      Nearly overcast, rain                  Submerged:    0 nm.  
    16.00 CB 5887    
      Further freshening    
    20.00 CB 5858    
      S 6, Sea 5, overcast, rain    
    24.00 CB 5838                                      
         
    26.05.42    
    02.15   Test dive.  
    02.25   Surfaced.  
    04.00 CB 5913    
      Abating a little    
    08.00 CB 5691    
      Rain, Vis. poor    
    12.00 CB 6442 Day's run:     Surfaced: 158.3 nm  
      Weather unchanged, Vis. good                  Submerged:     0.7 nm.  
    16.00 CB 6286    
      S 5, Sea 4, overcast    
    20.00 CB 6345    
    24.00 DB 6335    
      Weather unchanged                                      
         
    27.05.42    
    04.00 CC 1784    
    08.00 CC 1769    
      Abating    
    12.00 CC 1829 Day's run:     Surfaced: 208 nm  
      S 3, Sea 3, overcast                  Submerged:     0 nm.  
    16.00 CC 1912    
      Strongly cloudy, rain, Vis. good    
    20.00 CC 1695    
      Overcast    
    24.00 CC 2449    
      Decreasing cloudiness                                      
         
    28.05.42    
    04.00 CC 2462    
      Partly cloudy    
    08.00 CC 2513    
      Freshening    
    12.00 CC 2295 Day's run:     Surfaced: 192 nm  
      W 5, Sea 4, overcast, Vis. good                  Submerged:     0 nm.  
    16.00 CC 2358    
      Wind and Sea from the SW, fog    
    20.00 CC 3142    
      Abating    
    24.00 CC 3134                                      
      Hazy  
Sun and Moon Data 25.05.42
Sun and Moon Data 26.05.42
Sun and Moon Data 27.05.42
Sun and Moon Data 28.05.42
 
- 28 -
 
           
           
           
           
    29.05.42      
    01.24   Test dive.  
    01.42   Surfaced.  
    04.00 BC 7988    
      S 2-3, Sea 2-3, strongly cloudy    
    08.00 BC 7993    
      Overcast    
    12.00 BC 7855 [typo probably 8755] Day's run:     Surfaced: 211.1 nm  
      Rain                  Submerged:     0.9 nm.  
    16.00 BC 8814    
      Overcast, fog, Vis. poor    
    20.00 BC 8594    
      Rain, fog    
    24.00 BC 8651    
      Vis. poor                                      
         
    30.05.42    
    04.00 BC 8639    
      Wind and Sea from the W, heavily cloudy    
    08.00 BC 9422    
      SW 3, Sea 2    
    12.00 BC 9278 Day's run:     Surfaced: 254 nm  
      Freshening                  Submerged:     0 nm.  
    16.00 BC 9294    
      SW 7, Sea 7, strongly cloudy, Vis. good    
    20.00 BC 9373    
    24.00 BC 9366    
      Abating                                      
         
    31.05.42    
    04.00 BD 7153    
      Wind and Sea shifting to the WSW, overcast    
    08.00 BD 7213    
      Decreasing cloudiness    
    12.00 BD 7311 Day's run:     Surfaced: 254 nm  
      Few clouds                  Submerged:     0 nm.  
    16.00 BD 4989    
      Overcast, Vis. medium    
    20.00 BD 5782    
      Freshening a little    
    24.00 BD 5843    
      Rain                                      
         
    01.06.42    
    04.00 BD 5863    
      SW 5, Sea 5, Vis. very poor    
    08.00 BD 5929    
      Fog    
           
Sun and Moon Data 29.05.42
Sun and Moon Data 30.05.42
Sun and Moon Data 31.05.42
Sun and Moon Data 01.06.42
 
- 29 -
 
           
           
           
           
    01.06.42      
    12.00 BD 6724 Day's run:     Surfaced: 275 nm  
      Overcast, abating                  Submerged:     0 nm.  
    16.00 BD 6814    
    20.00 BD 6835    
      SSW 4, Sea 3, overcast, Vis. medium    
    23.43   Test dive.  
    23.49   Surfaced.  
    24.00 BD 6923                                      
         
    02.06.42    
    04.00 BE 4721    
      Wind and Sea shifting to the S    
    08.00 BE 4577    
      Unchanged    
    12.00 BE 4594 Day's run:     Surfaced: 275.7 nm  
                         Submerged:     0.3 nm.  
    16.00 BE 4658    
      Abating, slightly cloudy, Vis. very good    
    20.00 BE 5455    
      Heavily overcast    
    24.00 BE 5546                                      
         
    03.06.42    
    04.00 BE 5644    
      SE 1, Sea 0-1, overcast, Vis. poor    
    08.00 BE 5665    
      Wind and Sea from the ENE, Vis. very good    
    12.00 BE 6459 Day's run:     Surfaced: 303 nm  
      Partly cloudy                  Submerged:     0 nm.  
    16.00 BE 6549    
      Wind freshening, hazy    
    20.00 BE 6647    
      Vis. very good    
    24.00 BE 6668    
      Decreasing cloudiness                                      
         
    04.06.42    
    04.00 BF 4459    
      Few clouds    
    08.00 BF 4573    
      ESE 3, Sea 2, clear, Vis. very good    
    12.00 BF 4647 Day's run:     Surfaced: 275 nm  
    12.22   Crash dive for aircraft.  
    13.02   Surfaced.  
    14.20   Crash dive for aircraft.  
    14.45   Surfaced.  
           
Sun and Moon Data 01.06.42
Sun and Moon Data 02.06.42
Sun and Moon Data 03.06.42
Sun and Moon Data 04.06.42
 
- 30 -
 
           
           
           
           
    04.06.42      
    16.00 BF 5367    
      Abating    
    20.00 BF 5458    
    24.00 BF 5548    
      Hazy                                      
         
    05.06.42    
    04.00 BF 5534    
      W 1-2, Sea 0-1, clear    
    07.20 L 2 Joined convoy, a Sperrbrecher and 2 escort vessels.  
    08.00 BF 6181    
    08.45   Made fast Lorient.  
    20.40   Departed Lorient with escort to L 2 from there via L 1 on Route " Rosa" , to point 32.  
                                             
    06.06.42    
    05.30   Inbound in convoy (1 Sperrbrecher and 3 escort vessels)  
    09.20   Made fast Brest.  
                                             
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
Sun and Moon Data 04.06.42
Sun and Moon Data 05.06.42
Sun and Moon Data 06.06.42

  Appendices to U-564's KTB - click on the text at left to proceed to the documents
   
Torpedo Firing Torpedo Firing Reports (Schussmeldung)
Radio Summary Excerpt of radio log (Funkkladde).

 
 
     
 

Commentary of the Commander in Chief U-boats

 
 
On the War Diary of "U-564" from 07.03. to 06.06.42.
 
 

 

 
 
A very well accomplished patrol.  It is unfortunate that the tough operation on the convoy was unsuccessful as a result of torpedo failures.
 
     
     
   

Signed in draft:  D  ö  n  i  t  z

 
   
For verification:
 
 
 
   
 Ob.Leutnant z.S. and Adjutant  i.V.
 
                                                  
                                                                        
     
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