U-89 - 2nd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed
Date
Arrived
Date
Days at Sea
Brest
6 June 1942
Brest
21 Aug 1942
77

 

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
25 Jun 42
09.55 - 10.05
42°09'N, 65°42'W
LUCILLE M.
54
Canadian
 
     
 Total = 54
   
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  89  "  
           
           
           
                      Kommandant: Kapitänleutnant   L  o  h  m  a  n  n  
           
           
                           
           
           
                                Beginning:  28 May 1942  
                                Ending   :   21 Aug. 1942.  
           
           
           
           
           
           
           
         
     
 
         
         
        © U-boat Archive 2023 - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 1 -
 
           
           
           
           
           
           
           
                               28 May to 5 June 1942.  
           
        Boat lies in Brest.  Minor overhaul and repair work in the U-boat bunker.  Restocking of provisions and torpedoes.  
        2 June:  Engine testing, trim test, submerged piston shots and degaussing.  
        5 June:  Final trim test by Flotilla Engineer.  Magnetic compass deviation determination.  
           
                                             
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
 
 
- 2 -
 
           
           
           
           
    06.06.42 Brest Departed on 2nd patrol  
        Operations area:  North American East Coast at the level of Cape May.  
    22.00 WNW 1, Sea 1, overcast, hazy, 1021 mb, +20°C Cast off Brest U-boat bunker.  Transit in convoy on prescribed route to Lorient.  
                                             
    07.06.42 Transit from Brest to Lorient    
    00.00 NNW, calm Sea, cloudless, hazy over the horizon    
    02.13   Released from convoy.  
    04.00 NNW 1, calm Sea, cloudless, hazy, 1022 mb, +19°C    
    06.55   Taken in convoy to enter Lorient.  
    09.10 Lorient Ran in to Lorient and made fast berth A 1.  
    12.00   Total distance covered:  131.4 nm  
    21.00 NNE 3, Sea 2, clear, 1026 mb, +21°C, Vis. very good Departed Lorient in convoy together with "U-105" and "U-505".  First Watch Officer falls ill with tonsillitis.  
    22.40   Released from convoy.  
        Moved off from the coast on the prescribed route.  "U-105" and "U-505" out of sight after darkness falls.  
                                             
    08.06.42 Bay of Biscay    
    00.00 NNE 3-4, Sea 2, clear, Vis. medium, 1028 mb, +18°C Moved off from the coast on course 250°.  
    04.00 BF 5548    
      NNE 3-4, Sea 2, clear, long low Swell, 1027 mb, +17°C    
    05.10 BF 54 Meeting with "U-105".  
    08.00 BF 5488    
      NE 4, Sea 3-4, increasing cloudiness, long low Swell, Vis. good on the surface    
    09.02 BF 57 Dived due to air danger.  Depth A -40 meters.  
           
           
Sun and Moon Data 06.06.42
Sun and Moon Data 07.06.42
Sun and Moon Data 08.06.42
 
- 3 -
 
           
           
           
    continued      
    08.06.42      
    12.00 BF 5711 Day's run:            126.0  
                                       8.0  
                                      134.0 nm  
    20.59 BF 4698 Surfaced.   7 June    134.4  
                         total:       265.4 nm  
      NNE 5, Sea 5, 3/10, medium-high long NE-Swell, Vis good, 1028 mb, +15°C Transit on the Great Circle to point = φ = 41°30N, λ = 47°W south of the Newfoundland Bank  
    23.45 BF 4679 Passed two fishing trawlers with set lights.  
                                             
    09.06.42 Bay of Biscay Transit through the Bay of Biscay on the Great Circle to the operations area off the North American East Coast.  
    00.00 BF 4679    
      NNE 4, Sea 4, 7/10, 1028 mb, +15°C, medium-high long NE-Swell, Vis. good    
    04.00 BF 4589    
      NNE 5, Sea 4, overcast, long NE-Swell, Vis. medium, 1025 mb, +15°C    
    08.00 BF 4496    
      Wind and Sea unchanged, solid Stratocumulus layer
   
    10.02 BF 4491 Dived due to air danger and to work on the torpedoes.  Depth:  A -40 meters.  
    12.00 BF 4486 Day's run:            156.7  
                                      27.2  
                                      183.9 nm  
                          8 June   265.4  
                         total:       449.3 nm  
    22.25 BF 4474 Surfaced.  
    23.22   Short Signal on 35.46 meters:  
        My position is square BE 66.        "U-89".  
    23.48 BE 6696    
      NE 4, Sea 4, overcast, Vis. moderate, 1023 mb, +15°C Two star shells (about 10 nm away) sighted shortly after one another bearing 312°T.  Held on to it.  
                                             
           
Sun and Moon Data 08.06.42
Sun and Moon Data 09.06.42
 
- 4 -
 
           
           
           
           
    10.06.42 North Atlantic Outbound transit to operations area.  
    00.00 BE 6696 Radio message from Control:  Lohmann reports position from naval square BE 66.  
      NE 5, Sea 4, overcast, Vis. medium, 1023 mb, +14°C  
    01.22 BE 6692 No further indications for the source of the star shells.  Came to old course again.  
    04.00 BE 6683    
      NE 4, Sea 3, overcast.    
    08.00 BE 6673    
      N 3, Sea 3, overcast with cloud gaps, confused Swell, Vis. good, 1022 mb, +14.5°C    
    08.03   Crash dive for aircraft (type unclear), (Consolidated 32 or Consolidated PB2y-I ?) range about 3000 meters, westerly course, was probably sighted.  Depth:  A +0 then A -40 meters.  
    12.00 BE 6672 Day's run:              66.7 nm  
                                      37.2  
                                      103.9 nm  
                          9 June   449.3  
                         total:       553.2 nm  
        Switched to Ireland Circuit.  
    22.25 BE 6545 Surfaced.  
      NNE 3, Sea 2, overcast, light N-Swell, Vis. good, 1021 mb, +14°C First Watch Officer again fit for duty.  
                                             
    11.06.42 North Atlantic eastern part On the transit to American East Coast.  
    00.00 BE 6469    
      NNE 3, Sea 3, 4/10, 1021 mb, +14°C    
    04.00 BE 6459    
      NNE 3, Sea 3, overcast, 1021 mb, +15°C, at times drizzle, Vis. moderate    
    08.00 BE 6447    
      Unchanged    
    12.00 BE 5658 Day's run:            111.7 nm  
      NNE 4, Sea 3, clearing, 1020 mb, +16.5°C                               31.5  
                                    143.2 nm  
                        10 June   553.2  
                         total:       696.4 nm  
                                             
         
Sun and Moon Data 10.06.42
Sun and Moon Data 11.06.42
 
- 5 -
 
           
           
           
    continued      
    11.06.42      
    16.00 BE 5551    
      NNE 3, Sea 2, 5/10, Vis. good, 1020 mb, +18°C    
    20.00 BE 5463    
      NNE 2, Sea 1, 6/10, Vis. very good, 1021 mb, +18°C    
                                             
    12.06.42 North Atlantic eastern part Assigned changing operations areas to the north and south of the position.  
    00.00 BE 5455    
      NNE 2, Sea 1, 6/10, 1022 mb, +17°C, Vis. good    
    04.00 BE 5444    
      N 2, Sea 1, overcast, light N-Swell, Vis. moderate, 1023 mb, +16.5°C    
    08.00 BE 4667    
      NNE 2, Sea 1, 5/10, Vis. good, 1023 mb, +16.5°C    
    12.00 BE 4657 Day's run:            181.7 nm  
      N 2-3, Sea 1, clear, Vis. very good, 1024 mb, +18°C                 11 June   696.4  
                       total:       878.1 nm  
    13.23   Radio Message from Control:  Schendel, Uphoff, Möhlmann, Flachsenberg, Heydemann, Vogelsang, Lohmann and U-437 head for square AK 59.  Lohmann and U-437 day's run 80 nm.  Intention:  Operation on convoy.  After passing the longitude of square BF 6111 radio silence except for tactically important messages.  
    15.10 BE 4569 For a day's run of 80 nm at slowest diesel electric propulsion setting, legs around main course 320°.  
    16.00 BE 4568    
      NE 1, Sea 1, 3/10, Vis. very good, 1024 mb, +18.5°C    
    18.17 BE 4559 Radio message from Control:  To Lohmann, U-437, Topp, Heydemann, Vogelsang head for square CF 32.  Transit speed.  More to follow.  
    19.03 BE 4555 Came to course 137°, transit speed.  
    19.33   Radio message from Control:  1.)  Lohmann,  U-437, Topp, Vogelsang, Heydemann on 14 June at 08.00 hours be in patrol line from square CF 3184 to 3394.  Depth 20 nm.  
           
Sun and Moon Data 11.06.42
Sun and Moon Data 12.06.42
 
- 6 -
 
           
           
           
    continued      
    12.06.42      
        2.)  Schendel, Uphoff, Flaschenberg, Möhlmann on 15 June 00.00 hours be in square BE 89,  3.)  Boats form Group "Endraß".  4.)  Intention:  surprise blow against weakly protected Gibraltar-England convoy.  Continuous own air reconnaissance.  
    20.00 BE 4911    
      ENE 2, Sea 1, 6/10, 1022 mb, +20°C, Vis. good    
    21.00 BE 4915 Course 149°.  
                                             
    13.06.42 West of the Bay of Biscay Heading for ordered position in patrol line.  
    00.00 BE 4957    
      E 3, Sea 2, overcast, Vis. good, 1023 mb, +18.5°C    
    04.00 BE 7326    
      NE 2, Sea 1, 1/10, Vis. medium, light NE-Swell, 1022 mb, +17°C    
    08.00 BE 7369    
      E 4, Sea 3, overcast, light SE-Swell, Vis. good, 1018 mb, +16°C    
    12.00 BE 8415 Day's run:            196.4 nm  
      EbyS 5, Sea 4, 7/10, Vis. good, 1018 mb, +17°C                 12 June   878.1  
                       total:     1074.5 nm  
    16.00 BE 8481    
      ESE 7, Sea 5, overcast, Vis. good, 1017 mb, +17°C    
    20.00 BE 8734    
                                             
    14.06.42 West of the north Spanish coast At convoy.  
    00.00 BE 8874    
      NE 5, Sea 4, overcast, rain, 1019 mb, +17°C, Vis. moderate to bad    
    04.00 CE 3141 [typo actually CF]    
      ESE 3, Sea 3, overcast, 1019 mb, +17°C, Vis. moderate    
           
Sun and Moon Data 12.06.42
Sun and Moon Data 13.06.42
Sun and Moon Data 14.06.42
 
- 7 -
 
           
           
           
           
    14.06.42      
    08.00 CF 3184 [typo actually CF] Boat positioned by dead reckoning at the ordered position in patrol line.  Last navigation fix 13 June 00.00 hours had a few radio check bearings from Cape Vilano.  
      NE 5, Sea 4, overcast, 1020 mb, +17°C, Vis. medium  
    12.00 CF 3184 [typo actually CF] Day's run:              212.1 nm  
      NE 4, Sea 3, overcast, 1022 mb, +18°C, light Swell, Vis. good                 13 June   1074.5  
                       total:      1286.6 nm  
         
    13.29   Radio bearing from contact holding aircraft bearing 102°T and 109°T without giving bearing and distance  
        Came to course 102°.  
    14.13   Short Signal concerning contact holding bearing:  CF 3187, 102°T.        U-89.  
    15.21 CE 3191 [typo actually CF] Smoke clouds bearing 37°T.  Came to course 28°.  Ahead GF.  Began maneuver ahead.  
    16.26 CE 3191 [typo actually CF] Short Signal:  Have contact on convoy.        U-89.  
        No square given, because the position of the convoy is apparent from own bearing and the bearings given by Topp.  
    17.13 CE 3159 [typo actually CF] Topp reports contact on starboard forward corvette.  I hold contact on vessel with a masthead and must have detected the port forward escort.  When it bears 120°T and growing, put it astern and moved off at highest speed  in direction 300°T.  Despite setting the diving planes to centered and closing and blowing the waterproof bow, speed measurement comes to not more than 17.3 knots.  Because I assume the pursuing vessel is a corvette whose top speed is probably at best, at 20 knots, I hope to be able to shake it off  
      NE 3, Sea 2, overcast, 1025 mb, +18°C, Vis. good  
    18.10 CF 3154 Radio message:  From Lohmann: was forced off by escort at highest speed in direction 300°T. Naval square CF 3154.  
    18.34   Radio message from Control:  Lohmann immediately report convoy position, Vogelsang check position.  For now assume the position from Topp is correct.  
    18.44 CF 3119 Radio message:  From Lohmann:  Artillery fire.  Escort comes up slowly.  While running off continuing artillery fire.  (19 salvos, last range about 10000 meters).  From all the short salvos of 4 deduced a trailing TRIBAL or JERVIS class destroyer.  The intention of drawing the "escort" as far  
           
           
Sun and Moon Data 14.06.42
 
- 8 -
 
           
           
           
    continued      
    14.06.42      
        as possible from the convoy by running at highest speed is frustrated by breakdown of the port diesel (piston seizure).  
    19.14   Crash dive.  The presumption that the now recognized destroyer would abandon the prosecution with increasing distance from the convoy turns out to be a fallacy.  Despite the reported only weak protecting forces, he remains tenacious and [while providing] comforting relief for others it does not seem promising.  
    19.55   First depth charge attack (4 series each about 3 and more charges) at depth A +20 meters.  
        Failures and damage:  
        Gyro and magnetic compass.  Speed measurement system.  Order/loudspeaker system.  Numerous pressure gages unusable.  
        Fuse damage:   
        Both diving planes and main rudder, ruder indicator, various lighting circuits.  
        Leaks:  Starboard outer exhaust gas valve, housing of the starboard and port inner exhaust gas valves, drain piping head valve torn in the control room, lubricating bushing of the flood valve linkage for main ballast and reserve fuel oil tank 2 port ran empty (10.5 cbm).  Internal contamination of both periscopes, radio direction finder difficult to move.   
        Except for failure of the magnetic and gyro compasses, pumping difficulties and the first morale shock effect for an inexperienced crew no significant disability.  
                Silent tribute to the beneficial preparatory work of the Agru-Front.  
   

21.18 - 22.20

No square/weather given because submerged, magnetic and gyro compass out of service and barometer out of adjustment. During depth charge series after depth charge series, pumping difficulties are greatly complicated by jumping out of the rubber seals on the suction filter the main bilge pump.  The boat settles momentarily through depth A +120 meters and is held by blowing main ballast tank 3.  Break in the pursuit is used without regard to silent running to go up to depth A +40 meters to pump and work in the boat.  
    21.30   Arising piston engine sounds.  
    22.20   Sound pursuit with depth charge attack by 2 vessels.  Changing of the watch destroyer by corvette.  
    23.55   Last large depth charge series.  Thereafter turbine sounds are no longer heard. Now only the escort with piston engine continues to hold contact.  
                                             
           
           
Sun and Moon Data 14.06.42
 
- 9 -
 
           
           
           
           
    15.06.42 Entire day submerged west of the north Spanish coast    
        When about 03.00 hours there were no further approaches by the escort vessel I decided to surface at 04.00 hours, however, a half hour later more depth charges.  
    03.37      
    10.19   Up to 10.19 hours single depth charges at longer time intervals.  A total of about 120 depth charges.  During this period and later large numbers of depth charge detonations whose direction could not be determined.  There must still be another [boat] forced to submerge.   
        An attempt was made to steer a fixed direction under water with a miniature magnetic compass in a battery whistle of the Engineering Officer and in so doing a rudder amidships position of about starboard 7 was determined.  The more reliable direction determination remains the sound bearing from the escort.  Put off surfacing until dark because of failure of both the diesel and compasses.  
    12.00   Boat was still detected by the escort several times.  
        Day's run:              77.3 nm  
                                      38.4  
                                      115.7 nm  
                        14 June   1286.6  
                         total:      1402.3 nm  
    13.20   Overrun perfectly for the last time.  No depth charges.  
    15.00   No sound bearings except for a clock-like ticking sound that changes in volume and is difficult to detect in terms of direction.  
    21.10   Indistinct sound bearing like a small boat motor.  
    22.52   Expected sunset for square CF.  
    from 23.45   Prepared to surface.  
                                             
    16.06.42 Sea area west of the north coast of Spain Boat is prepared to attack with artillery, torpedo employment and destruction of the secret material.  
      No square given because the last navigation fix was on 13 June and the compasses are out of service While surfacing sound bearing of a piston engine bearing 310°T.  
    00.19   Sounds were put astern.  
           
           
Sun and Moon Data 15.06.42
Sun and Moon Data 16.06.42
 
- 10 -
 
           
           
           
    continued      
    16.06.42      
    01.28   Surfaced.  Battery voltage:  112V.  
        Compressed air:  65 atm.  
        Artillery ready.  
      Wind 2, Sea 2, overcast, light drizzle, Vis. very bad A NW wind was assumed and by the wind and Sea and with the Engineering Officer's department store compass steered a course assumed to be northerly.  Stars cannot be seen.  
        At first there were difficulties starting the diesels.  Air supply from Bottle Group IV, which had to be shut because of leakage at the start of the depth charge attack, used as a reserve.  Compressed air was filled, battery charged and the elimination of depth charge damage addressed.  
    07.31   Radio message from Lohmann:  Forced to submerged for 31 hours.  Depth charge damage.  Hope to repair with on board means.  Am missing Serial Nos. 128, 129, 148-177.  No compasses.  
    08.03   Dived to continue repairs, especially the gyro compass.  
    11.50   Radio Message to Group Endraß:  Break off operation.  Course west.  Immediately report position and fuel inventory by Short Signal.  
    12.00   Surfaced.  
        Day's run:             93.0 nm  
                                      40.6  
                                      133.6 nm  
                        15 June   1402.3  
                         total:      1535.9 nm  
    17.40 SW (?) 4, Sea 3, overcast, 1023 mb, Vis. moderate 19.08 hours sun altitude gives 18°18'W.  
    19.39   Radio Message to Group Endrass:  Head for AK 51 at economical transit speed.  
    19.50   Dived.  Work on the depth charge damage.  
    23.00   Gyrocompass again in service.  After 51 hours can again steer a course.  
    23.08 W 4, Sea 3, overcast, 1022 mb, +17°C, Vis. moderate Surfaced.  
                                             
           
           
Sun and Moon Data 16.06.42
 
- 11 -
 
           
           
           
           
    17.05.42 North Atlantic eastern part, latitude of Cape Finisterre    
    00.00 BE 8887    
      WSW 2, Sea 1, overcast, clearing, scattered fog, 1023 mb, +16°C    
           
    03.55 BE 8845 Radio Message from Lohmann:  Position square BE 88.  No navigation fix, fuel inventory more than 70 cbm, contents of main ballast and reserve fuel oil tank questionable 2 port leaked.  Port diesel piston seized.  Gyro compass again in service.  Anticipate fully operational 20 June.  Heading for ordered square.  Confirmation of my radio message concerning depth charge damage not received.  
      WSW 2, Sea 1, changing cloudiness, 1024 mb, +16°C, Vis. changing good to bad  
    08.00 BE 8736 Floating bales of cork cargo indicate the success of other boats of Group Endraß.  
      NNW 4, Sea 2, overcast, at times hazy, Vis. medium, 1024 mb, +17°C  
        Radio Message from Control:  
        1.)  Previous objective settled.  
        2.)  Möhlmann, Uphoff, Schendel, Heydemann and U-437 head for naval square 91 of the large square east of disguised square LX.  There supply from Wilamowitz, afterwards operation in the Caribbean area.  
        3.)  Lohmann, Vogelsang head for square BD 62.  There supply from Schäfer.  Then operation in square CA planned.  Immediately report if boat is operationally ready for task.  
    12.00 BE 8732    
      NE 3, Sea 2, overcast, Vis. good, 1025 mb, +17°C    
    14.08 BE 8497 Dived to work on the diesel.  
      Submerged Day's run:             156.5 nm  
                                         7.7  
                                        164.2 nm  
                        16 June   1535.9  
                         total:      1700.1 nm  
    20.00 BE 8485 Surfaced.  
      SE 3, Sea 2, overcast, 1026 mb, +16°C, Vis. good    
    23.30   From Radio Message:  Meeting point Schäfer, Lohmann, Vogelsang on 19 June from 18.00 hours in BD 6596.  If no meeting by 20.00 hours Vogelsang send bearing signals.  Boats fill with fuel and 10 day's provisions.  
                                             
           
           
Sun and Moon Data 17.06.42
 
- 12 -
 
           
           
           
           
    18.06.42 North Atlantic eastern part    
    00.00 BE 8445 Transit to BD 6596 for oil transfer from "U-460".  
      S 2, Sea 2, overcast, 1026 mb, +16°C, Vis. moderate, strong marine phosphorescence    
    04.00 BE 7638    
      SE 2, Sea 2, overcast, 1026 mb, +16°C, scattered fog    
    08.00 BE 7621    
      SSE 2, Sea 2, overcast, 1024 mb, +17°C, scattered light drizzle    
    12.00 BE 7371 Day's run:             141.3 nm  
      SE 3, Sea 2, overcast, 1025 mb, +17°C, scattered fog                                13.3  
                                      154.6 nm  
                        17 June   1700.1  
                         total:      1854.7 nm  
    16.00 BE 7252    
      S 2, Sea 1, overcast, scattered fog, light confused Swell    
    20.00 BE 7153    
      S 2, Sea 1, overcast, fog, Vis. changing, low long Swell    
                                             
    19.06.42 North Atlantic central Transit to meeting with "U-460" and "U-132".  
    00.00 BE 4785    
      S 2, Sea 2, overcast, Vis. bad, 1025 mb, +20°C    
    02.40 BE 4749 A steamer stern light in sight ahead to port.  Held onto it.  Later made out as a properly illuminated Portuguese steamer on course 310°.  Because this course takes it through the meeting point with "U-460" and "U-132" steamer was reported.  
    04.00 BE 4747    
      ESE 4, Sea 3, overcast, hazy, 1023 mb, +19°C    
    05.15 BD 6966 Kr Kr from Lohmann:  Illuminated Portuguese steamer BD 19, course 310°.  
        Until morning twilight held contact on the steamer.  
    07.30   Steamer out of sight.   
           
           
Sun and Moon Data 18.06.42
Sun and Moon Data 19.06.42
 
- 13 -
 
           
           
           
    continued      
    19.06.42      
    08.00 BD 6928    
      SE 4, Sea 3, hazy, at times fog, 1020 mb, +19°C    
    12.00 BD 6678 Day's run:             190.6 nm  
      SE 4, Sea 3, overcast, 1018 mb, +18°C                 18 June   1854.7  
                       total:      2045.3 nm  
    16.00 BD 6596    
      SSE 4, Sea 3, overcast, fog, 1019 mb, +19°C    
    19.00   Port diesel in service again.  Cylinder 2 piston and cylinder sleeve replaced.  
    20.00 BD 6593 Because there was no meeting with "U-460" proceeded on "U-132" bearing.  1st bearing 20.40 hours 323°T - 2nd bearing 21.20 hours 332°T.  
      SSE 3-4, Sea 3, scattered fog  
    21.50 BD 6568 "U-460" and "U-132" in sight 30° to starboard in fog at about 2000 meters.  
    22.10   While "U-132" takes over oil in tow, "U-89" goes alongside to starboard distance 40-50 meters to take over provisions and consumables.  Sunset by German Summer time is 23.38 hours.  
                                             
    20.06.42 Central Atlantic Supply from "U-460".  
    00.00 BD 6566    
      SSE 3, Sea 2, overcast, Vis. moderate, 1017 mb, +17°C    
    01.10   After 35-40 times back and forth with 3 canisters this supply is accomplished smoothly but still too slow.  
        While "U-132" continues to refuel I set off to screen to starboard in visual range.  
    03.46 BD 6563 "U-132" had finished refueling.  
      SSE 2, Sea 1, overcast, long low S-Swell, hazy, 1018 mb, +16.5°C I follow "U-460" on the transit to BD 6471 where meeting with "U-96" and "U-406" is intended.  
    08.00 BD 6549    
      SSE 2, Sea 1, overcast, Vis. medium to good, 1018 mb, +17.5°C    
    12.00 BD 6458 Day's run:              176.8 nm  
      SSW 4, Sea 3, 3/10, overcast, Vis. good, 1019 mb, +18°C                 19 June   2045.3  
                       total:      2222.1 nm  
           
Sun and Moon Data 19.06.42
Sun and Moon Data 20.06.42
 
- 14 -
 
           
           
           
    continued      
    20.06.42      
    12.30   Smoke clouds bearing 210°T.  By agreement with the Kommandant of "U-460" I hold onto it.  However after only 25 minutes we both must dive before aircraft.  
    12.26 Submerged No sound bearings!  
    15.11   Went to periscope depth.  
        Before an all around sweep is completed 4 sharp detonation close by.  I suspect aircraft bombs.  If it is for us or "U-460", or if Hellriegel or Dietrichs are already here cannot be determined.  
    16.45   At periscope depth with an all around sweep determined:  In sector from 284 - 340°T widely separated mast of an escort, that were later recognized as a destroyer, one thicker warship-like mast and one other escort vessel mast. Moves off on a northerly course and quite high speed.  No sound bearings.  
    18.35 BD 6472 Surfaced.  Nothing seen.  Pursuit pointless due to not ready diesels and uncertain information concerning the formation.  
    19.00 SW 2, Sea 1, lightly cloudy, Vis. very good 1019 mb, +19°C Accidental encounter with "U-132" which came up from a test dive and is initially thought to be our tanker.  Searched together with Vogelsang for "Schäfer", that must have been the target of the bombs.  After about 1-1/2 hours of searing together "U-460" comes in sight surfacing ahead to starboard.  "U-132" continues transit.  
    21.13   Moved back and forth in the sea area at low speed with "U-460".  Oil transfer put off until morning due to necessary repairs to the tanker.  
                                             
    21.06.42 Central Atlantic Fuel transfer from "U-460".  
    00.00 BD 6449    
      SSW 1, calm Sea, lightly cloudy, light SW-Swell, bright moonshine, 1021 mb, +17°C    
    04.00 BD 6447    
      SW 1, calm Sea, changing cloudiness Stratus, Vis. bad, 1020 mb, +17°C    
           
           
Sun and Moon Data 20.06.42
Sun and Moon Data 21.06.42
 
- 15 -
 
           
           
           
    continued      
    21.06.42      
    08.00 BD 5667 Prepared for oil transfer.  Weather very favorable except for visibility conditions  
      N 2, Sea 1, lightly cloudy, 1021 mb, +17°C, Vis. changing  
    09.20 - 11.42 Unchanged 44 cbm of oil were taken over from "U-460".  
    12.00 BD 5693 Day's run:             100.4 nm  
      Wind calm, calm Sea, lightly cloudy, Vis. good, 1023 mb, +18°C                                13.5  
                                      113.9 nm  
                      20 June   2222.1  
                         total:      2336.0 nm  
    12.19 - 13.05   Test dive.  
        Continued transit into the operations area off the North American East Coast.  
    16.00 BD 5686    
      SW 2, Sea 1, 5/10, scattered drizzle, 1023 mb, +18°C    
    20.00 BD 5677    
      SW 3, Sea 2, 7/10, low Swell, Vis. good, 1025 mb, +20°C    
                                             
    22.06.42 Central Atlantic Continued transit to operations area off the North American East Coast.  
    00.00 BD 56    
      SW 2, Sea 1, 7/10, Vis. good, 1026 mb, +16°C    
    01.02   Radio message:  1.)  Vogelsang 40 fuel oil 2 lubricating oil 10 provisions.  Lohmann 44 fuel oil, 10 provisions.  In transit with Lohmann to meeting point with Hellriegel forced to submerge by enemy formation.  Depth charges without significant damage.  Waiting according to orders for Hellriegel Dietrichs.  Believe area is unsuitable, traffic sighted daily.  Schäfer.  2.)  Square BD 58 diesels in service.  SW 2, 1026 mb, +16°C, overcast, Vis. very good.  
    04.00 BD 56    
      SW 1, Sea 1, lightly cloudy, Vis. medium, 1026 mb, +16°C    
    08.00 BD 58    
      W 2, Sea 1, overcast, Vis. good, light Swell, 1026 mb, +18°C    
           
Sun and Moon Data 21.06.42
Sun and Moon Data 22.06.42
 
- 16 -
 
           
           
           
    continued      
    22.06.42      
    12.00 BD 57 Day's run:             176.2 nm  
      W 1, calm Sea, 6/10, Vis. good, 1026 mb, +21°C                 21 June   2336.0  
                       total:      2512.2 nm  
    16.00 BD 57    
      SE 2, Sea 1, overcast, Vis. good, 1026 mb, +21°C    
    20.00 BD 73    
      SE 3, Sea 2, overcast, Vis. medium, occasional rain, 1025 mb, +19.5°C    
                                             
    23.06.42 Central Atlantic Transit to the operations area.  
    00.00 BD 73    
      SSE 3, Sea 2, 8/10, Vis. good, 1023 mb, +18°C    
    04.00 BD 72    
      SSE 3, Sea 2, overcast, Vis. medium, 1023 mb, +16°C    
    08.00 BD 72    
      SSE 4, Sea 3, overcast, Vis. medium, 1023 mb, +19°C    
    12.00 BD 72 Day's run:             177.7 nm  
      SSE 3, Sea 2, overcast, at times Vis. bad, and rain, 1022 mb, +19°C                 22 June   2512.2  
                       total:      2689.9 nm  
         
    16.00 BD 74    
      SSW 1, Sea 1, overcast, scattered rain, 1022 mb, +20°C    
    18.14 - 18.36   Test dive combined with sound sweep, very bad visibility.  
    20.00 BD 74    
      S 1, Sea 1, overcast, scattered fog, 1022 mb, +20°C    
                                             
    24.06.42 Central Atlantic    
    00.00 BD 96 [typo actually BC]    
      N 3, Sea 2, overcast, Vis. good, 1023 mb, +19.5°C    
    04.00 BD 96 [typo actually BC]    
      NbyE 2, Sea 1, overcast, Vis, moderate, 1025 mb, +18°C    
           
Sun and Moon Data 22.06.42
Sun and Moon Data 23.06.42
Sun and Moon Data 24.06.42
 
- 17 -
 
           
           
           
    continued      
    24.06.42      
    08.00 BD 98 [typo actually BC]    
      N 2, Sea 1, lightly cloudy, Vis. good, 1025 mb, +20°C    
    12.00 BD 98 Day's run:             191.1 nm  
      Wins calm, calm Sea, 4/10, Vis. good, 1027 mb, +18°C                                1.2  
                                      192.3 nm  
                        23 June   2689.9  
                         total:      2882.2 nm  
    16.00 BD 97 [typo actually BC]    
      SW 1, calm Sea, 7/10, 1028 mb, +22.5°C, Vis. good    
    20.00 BD 97    
      S 1, Sea 1, lightly cloudy, Vis. very good, 1028 mb, +21°C                                      
         
    25.06.42 Atlantic southwest of Newfoundland    
    00.00 CD 13    
      S 4, Sea 3, overcast, hazy horizon, 1026 mb, +18.5°C    
    01.00   Radio message from Control: Lohmann, Prätorius, Rasch report weather by Short Signal.  
    04.00 CD 13    
      SW 1, calm Sea, thick fog, 1026 mb, +18°C    
        At 04.35, 05.05, 06.06 hours Short Signal weather report was sent on "Greenland" Circuit, without confirmation following.  
    08.00 CD 12 Failure of the all wave receiver due to a short in the voltage divider.  
      S 1, Sea 1, thick fog, 1028 mb, +18.5°C  
    12.00 CD 12 Day's run:             171.0 nm  
      S 2, Sea 1, thick fog, occasionally freshening, 1029 mb, +20°C                 24 June   2882.2  
                       total:      3053.2 nm  
         
    16.00 CD 11    
      SW 1-2, Sea 1, 5/10, Vis. good, 1030 mb, +24°C    
    20.00 CD 14    
      SSW 2, Sea 1, 5/10, 1030 mb, +25°C, hazy horizon                                      
         
           
Sun and Moon Data 24.06.42
Sun and Moon Data 25.06.42
 
- 18 -
 
           
           
           
           
    26.06.42 Atlantic southwest of Newfoundland    
    00.00 CC 36    
      SSW 2, Sea 2, 8/10, hazy horizon, 1029 mb, +21.5°C    
    01.43 - 02.08   Test dive.  
    04.00 CC 36    
      SW 1, Sea 1, fog, 1029 mb, +18°C    
    08.00 CC 38    
      SSW 2, Sea 1, thick fog, 1026 mb, +19°C, water temperature from 21 to 16°C    
    12.00 CC 35 Day's run:             165.7 nm  
      SSW 2, Sea 1, fog                                1.3  
                                        167.0 nm  
                        25 June   3053.2  
                         total:      3220.2 nm  
    16.00 CC 34    
      SW 3, Sea 2, 5/10, Vis. medium, 1024 mb, +23°C    
    20.00 SW 3, Sea 2-3, 7/10, long SW-Swell, Vis. good, 1027 mb, +17°C    
                                             
    27.06.42 Atlantic, south of Newfoundland Encounter with Diplomatic ship "DROTTINGHOLM".  
    00.00 CC 26    
      WSW 2, Sea 1, 5/10, long SW-Swell, hazy horizon, 1028 mb, +18°C, sudden water temperature fall to 13°C    
    04.00 CC 26    
      Wind calm, calm Sea, cloudless, bright moon, hazy horizon, 1028 mb, +15°C    
    08.00 CC 25    
      SW 1, calm Sea, cloudless, 1029 mb, +12°C    
    12.00 CC 28 Day's run:             168.0 nm  
      SW 1, mirror flat Sea, cloudless, 1029 mb, +18°C                 26 June   3220.2  
                       total:      3388.2 nm  
           
Sun and Moon Data 26.06.42
Sun and Moon Data 27.06.42
 
- 19 -
 
           
           
           
    continued      
    27.06.42      
    16.00 CC 27    
      SW 1, Sea 1, lightly cloudy, light W-Swell, Vis. good    
    16.24   Smoke feather in sight bearing 87°T, thereafter mast and smokestack, high speed.  
    16.39   Crash dive.  
    17.02   Large steamer distinguished, target angle 0°.  
    17.27   During preparations to attack the steamer was recognized as neutral marked Swedish steamer "DROTTINGHOLM".  Let pass out of sight submerged.  Mirror and lower final lens of the periscope fogged up permanently.  Cause must be the large temperature variation of the sea water between +21 and +12°C.  
    19.50   Surfaced.  
    20.00 CC 27    
      SW 1, Sea 0, 5/10, Vis. good, long N-Swell, 1024 mb, +22°C    
                                             
    28.06.42 Atlantic western part    
    00.00 CC 27    
    02.48 WNW 1, calm Sea, 3/10, Vis. good, 1030 mb, +23°C 2nd Short Signal weather report sent by request.  
    04.00 CC 19    
      Calm, calm Sea, overcast, light W-Swell, bright moonshine, 1030 mb, +21°C    
    08.00 CC 19    
      Unchanged, +23°C    
    12.00 CC 18 Day's run:             151.4 nm  
      SSE 1, Sea 1, overcast, Vis. good, 1027 mb, +21°C                                  4.6  
                                      156.0 nm  
                        25 June   3338.2  
                         total:      3494.2 nm  
    16.00 CC 17    
      WNW 3, Sea 1, overcast, 1026 mb, +23°C    
    20.00 NW 1, Sea 1, 7/10, scattered rain showers, 1025 mb, +26°C, Vis. good    
                                             
           
Sun and Moon Data 27.06.42
Sun and Moon Data 28.06.42
 
- 20 -
 
           
           
           
           
    29.06.42 North Atlantic south of Newfoundland    
    00.00 CC 17    
      NW 1, Sea 1, 6/10, Vis. good, 1025 mb, +21°C    
    04.00 CB 39    
      NE 3, Sea 3, few clouds, squalls with rain showers, 1026 mb, +21°C, bright moon    
    08.00 CB 39    
      NNE 3, Sea 3, few clouds, Vis. good, 1027 mb, +21°C    
    12.00 CB 62 Day's run:             158.0 nm  
      N 3, Sea 2-3, lightly cloudy, 1027.5 mb, +22°C                 28 June   3494.2  
                       total:      3652.2 nm  
    16.00 CB 62    
      NE 2, Sea 2, lightly cloudy, Vis. good, 1030 mb, +24°C    
    20.00 CB 61    
      NNE 2, Sea 2, 3/10, Vis. good, 1030 mb, +26°C    
                                             
    30.06.42 Atlantic 3 days before reaching operations area.  
    00.00 CB 61    
      ENE 1, Sea 1, few clouds, Vis. good, 1030 mb, +25°C    
    02.31 - 03.00 CB 61 Test dive.  
    04.00 CB 53 3rd Short Signal weather report sent.  
      NE 2, Sea 1, few clouds, 1030 mb, +21°C, Vis. very good    
    08.00 CB 52    
      NE 2, Sea 1, 3/10, bright moonshine, Vis. very good, 1030 mb, +20°C    
    12.00 CB 5246 Day's run:             176.5 nm  
      ENE 3, Sea 2, 4/10, Vis. very good, 1030 mb, +24°C                                  1.4  
                                      177.9 nm  
                        29 June   3652.2  
                         total:      3830.1 nm  
    16.00 CB 5167    
      SE 3, Sea 1-2, 6/10, Vis. very good, 1030 mb, +27°C    
           
Sun and Moon Data 29.06.42
Sun and Moon Data 30.06.42
 
- 21 -
 
           
           
           
    continued      
    30.06.42      
    20.00 CB 5172 In the very favorable weather conditions took advantage of the last chance to attempt a rough repair of the magnetic compass before reaching the area of operations. Succeed in making it of limited usefulness as a magnetic dry compass.  
      SE 3, Sea 2, 5/10, Vis. very good, 1030 mb, +30°C  
                                             
    01.07.42 Atlantic Two days before reaching the operations area.  
    00.00 CB 4394    
      SSE 3, Sea 2, 3/10, Vis. very good, 1027 mb, +28°C    
    04.00 CB 4378    
      Wind calm, calm Sea, cloudless, 1025 mb, +23°C, Vis. very good    
    08.00 CB 4289    
      Wind calm, calm Sea, cloudless, bright moonshine, Vis. good, 1025 mb, +23°C    
    12.00 CB 4515 Day's run:             182.0 nm  
      SSE 1, Sea 1, lightly cloudy, Vis. good, 1024 mb, +23°C                 30 June   3652.8  
                       total:      3834.8 nm  
    16.00 CB 4429    
      SSW 1, Sea 1, cloudless, Vis. very good, 1023 mb, +27°C    
    19.55 CA 4417 Biplane ahead 30° to port, recognized at very great range.  Dived.  
    20.00 S 2, calm Sea, few clouds, Vis. very good, 1021 mb, +25°C  
    21.08   Surfaced.  
    23.05 CA 6661 Ahead to port a large undetermined object sighted.  Dived and closed submerged.  At close range in the periscope distinguished as a cylindrical boiler (about 12 x 2 meters).  
                                             
    02.07.42 Atlantic off the North American Coast, level of Cape May    
    00.23 CA 6661 Surfaced, check fire of all machine guns at the drifting cylindrical boiler.  
      SW 2, Sea 1, lightly cloudy, Vis. very good, 1020 mb, +20.5°C  
           
Sun and Moon Data 30.06.42
Sun and Moon Data 01.07.42
Sun and Moon Data 02.07.42
 
- 22 -
 
           
           
           
    continued      
    02.07.42      
    04.00 CA 6642    
      Unchanged, Vis. moderate    
    08.00 CA 6553    
      S 2, Sea 2, 6/10, Vis. good, 1019 mb, +22°C    
    12.00 CA 6564 Day's run:             187.6 nm  
      SSW 2, Sea 1, 2/10, bright moonshine, Vis. good, 1019 mb, +22°C                                  4.2  
                                      191.8 nm  
                      1 July      3834.8  
                         total:      4026.6 nm  
    16.00 CA 6448    
      SW 3, Sea 2, cloudless, Vis. good, 1018 mb, +26°C    
    20.00 CA 5659    
      SSW 5, Sea 4, 8/10, Vis. quite good, 1016 mb, +26°C    
                                             
    03.07.42 Atlantic off the North American Coast In the operations area off the North American Coast at the level of Delaware Bay.  
    00.00 CA 5672    
      S 4, Sea 3, overcast, rain showers, Vis. bad, 1015 mb, +22°C    
    04.00 CA 5583 No radio bearings, because the direction finder is out of service.  
      S 4, Sea 3, overcast, at times heavy rain showers, 1014 mb, +21°C  
    04.34   Crossed the 200-meter limit of the North American Continental shelf at 38°39'N latitude.  In so doing the reassuring finding that the Electro-Lot depth sounder has no depth charge damage.  
    08.00 CA 5581    
      NW 3, Sea 3, overcast, rain showers, Vis. medium, 1014 mb, +20°C    
    12.00 CA 5578 Day's run:             170.5 nm  
      NW 4, Sea 3, overcast, rain showers, Vis. medium, 1018 mb, +22°C                 2 July     4026.6  
                       total:      4197.1 nm  
         
    1219   One half hour after sunrise dived and put the boat on the bottom at depth A -8 meters to await darkness.  
        Sunset by on board time at 02.22 hours.  
    21.40 CA 5578 Boat raised from the bottom and went to periscope depth, because in 140°T  
           
Sun and Moon Data 02.07.42
Sun and Moon Data 03.07.42
 
- 23 -
 
           
           
           
    continued      
    03.07.42      
        A stationary sound bearing from 1 or 2 vessels is detected.  In the periscope due to fogging of the inner lenses nothing distinguished.  
    22.30 SW 1, Sea 1, 5/10, hazy horizon, 1022 mb, +25.5°C Surfaced and pursued in the direction of the sound bearing, course 140°, 2 x HF.  
                                           
    04.07.42 Atlantic south of Long Island 2nd day in the operations area off the North American East Coast.  
    00.00 CA 5816    
      SW 1, Sea 1, 5/10, hazy horizon, 1022 mb, +25°C    
    01.53 - 02.27 CA 5859 Surfaced [after diving] for sound bearing.  No useful bearings.  
        Pursuit broken off.  Returned to the operations area at lowest diesel-electric drive level.  There is not enough time for an advance to the coast tonight.  
    04.00 CA 5855    
      Wind calm, calm Sea, cloudless, hazy horizon, Vis. moderate to bad, 1022 mb, +24°C    
    04.42   Radio message from Control:  To Lohmann:  
        Attack area is sea area west of the longitude and north of the latitude of CA 5999.  Focal point off harbor in CA 2760.  
    08.00 CA 5815    
      S 1, Sea 1, cloudless, hazy horizon, 1023 mb, +24°C, bright moonshine    
    12.00 CA 5849 Day's run:             120.5 nm  
      E 1, calm Sea, 4/10, hazy horizon, 1022 mb, +24°C, water temperature +23°C                                  4.4  
                                      124.9 nm  
                         3 July    4197.1  
                         total:      4322.0 nm  
    12.20 CA 5846 Dived and put the boat on the bottom depth A -22 meters.  Course 81°.  Sunrise 11.37 hours.  
    21.00 Water temperature 6°C                                      
           
           
Sun and Moon Data 03.07.42
Sun and Moon Data 04.07.42
 
- 24 -
 
           
           
           
           
    05.07.42 Atlantic south of Long Island Transit to newly assigned focal point off New York, the boat is located 130 nm to the south.  
    00.00 On the bottom CA 5846 Prescribed measures for shallow water operation are taken.  
    02.22 SW 2, Sea 1, cloudless, Vis. good, 1022 mb, +25°C Surfaced.  Again headed to the operations area on northeast and northerly courses.  Mirror flat sea, marine phosphorescence and moon.  Remaining unseen seems the most important thing for now.  On surfacing temperature change from +11.5 to +25°C.  
    04.00 CA 5528 It is like a dripping cave.  Periscope, binoculars, sextant to are fogged and can only be used after a long period to acclimatize. Periscope remains unclear and needs to be dried.  A significant leak is found in the shaft bushing for "changing magnification".  
      Unchanged  
    08.00 CA 5344    
      Wind calm, calm Sea, cloudless, Vis. good, 1020 mb, +25°C    
    11.14 CA 5313 Dived and put the boat on the bottom depth A -12 meters, Course 17°.  
        Day's run:             104.7 nm  
                                         3.7  
                                        108.4 nm  
                           4 July    4322.0  
                         total:       4430.4 nm  
                                             
    06.07.42 Atlantic south of Long Island On the bottom off New York.  
    00.00 CA 5313    
      On the bottom depth A -12 meters    
    02.26 CA 5313 Surfaced.  Headed for the coast off New Jersey on westerly courses.  
      SW 1, Sea 1, hazy horizon, 1016 mb, +22°C  
    04.00 CA 5212    
      SSW 1, Sea 1, hazy horizon, 1016 mb, +23°C    
    08.00 CA 5234    
      SW 2, Sea 1, 3/10, Vis. medium, 1016 mb, +23°C    
    11.00 CA 5227 Dived.  - sunrise 11.30 hours -  
      WSW 3, Sea 2, 1/10, Vis. good, 1014 mb, +22.5°C    
    12.08   Put the boat on the bottom in the entrance to the deep channel to New York in depth A -8 meters, 30 nm from land.  
           
Sun and Moon Data 05.07.42
Sun and Moon Data 06.07.42
 
- 25 -
 
           
           
           
    continued      
    06.07.42      
        Day's run:               60.0 nm  
                                         5.2  
                                          65.2 nm  
                           5 July    4430.4  
                         total:      4495.6 nm  
                                             
    07.07.42 Sea area off New York Heading for Ambrose Lightship behind a neutral steamer.  
    00.00 CA 5527    
      On the bottom    
    02.46 CA 5227 Surfaced in the evening twilight.  
      NW 3, Sea 3, cloudless, Vis. medium, 1012 mb, +19°C A patrol craft PC-type bearing 265°T, distance about 2000 meters.  Crash dive.  Patrol craft was not detected before by sound bearing or in the periscope.  
    03.00   Uncertain weak sound bearing from the patrol vessel which is soon no longer heard.  
    03.25   Sound bearing from a piston engine bearing 320°T.  
    03.53   Surfaced.  At the sound bearing an illuminated steamer on course 320°.  
    04.04 CA 5224 Shadow of a patrol vessel astern to port (distance 5 nm).  Taken astern and moved off.  
    04.24   Illuminated steamer on course 320° again put ahead.  
    04.56 CA 5221 Second illuminated steamer bearing 296°T, that is soon out of sight on southerly courses.  
    05.20 CA 5213 A green blinking beacon bearing 257°T (flash group 3, pause 7 seconds, repeat 10 seconds) apparently a wreck buoy in approximate position φ = 40°09'N, λ = 73°40'W  
    05.55 CA 2879 On course 320° pursued the neutral steamer up to the Navsink beacon, bearing 298°T, 20 nm. (burns as in peacetime).  
      NW 3, Sea 1, cloudless, Vis. medium, 1013 mb, +22C  
      Breakdown of the port diesel, repairs will take about 4 hours. Must break off following the neutral steamer further 15 nm off the Ambrose Lightship. Moved off on opposite course.  
    09.42 CA 5237 Dived and put the boat on the bottom west of patrol boat positioned at the entrance to the deep channel.  Depth A -5 meters.  Course 300°.  
      NW 3, Sea 2, few clouds, moonshine (bright moon), Vis. good, 1014 mb, +21.5°C  
      Day's run:               49.3 nm  
                                         5.2  
                                          54.5 nm  
                           6 July    4495.6  
                         total:       4550.1 nm  
           
Sun and Moon Data 06.07.42
Sun and Moon Data 07.07.42
 
- 26 -
 
           
           
           
    continued      
    07.07.42      
    16.52 - 20.00   Sound bearing of a diesel with changing RPM and occasional stops that shifts ahead from starboard to port.  Apparently a patrol vessel running back and forth in the sea area.  
        Experiences and observations on lying on the bottom in the operations area:  
        Prevailing surface current runs in a southwesterly direction.  Current on the bottom changes with each ship position, no noteworthy strength.  Boat lies fixed with 2-3 tons negative buoyancy.  
        Between 15 and 20 meters water depth striking reversal of the current.  Boat runs with a trim of over 10° on the ruder.  
        Sea water specific weight on the surface 1021 on the bottom between 50 and 70 meters up to 1.025.  
        Water temperature on the surface +23°C on the bottom at 70 meters +9°C.  
        The boat's internal temperature falls from +22 to + 12°C.  Due to the strong cooling great humidity increase in the boat.  (dripping cave!)  Heating the periscope is required.  After surfacing binoculars and sextant are only usable when preheated.  
        Reliable sound bearings limited by water stratification.  Negative pressure occurs in the boot occurs through cooling without pumping out.  Because close under the coast due to the short nights there are at most 7 hours proceeding on the surface in which to receive the Radio Message Serial Nos. completely.  The transmitting periods of the German beam antenna lie unfavorably, so that no broadcast reception could take place.  
                                             
    08.07.42 Off New York Advance up to 0.5 nm from land at the coast off New Jersey.  
    00.00 CA 5237    
      On the bottom    
    00.10   Raised the boat from the bottom and headed to the west at silent speed.  
    03.25 CA 5234 Surfaced.  
      SW 2, Sea 1, cloudless, Vis. good, in the NW bright horizon Due to visibility conditions the earliest time to surface.  
      (sunset 02.32 hours)  
        Intention:  Head for the coast off New Jersey.  Suspect that there is no traffic under the coast off Long Island, because  
           
Sun and Moon Data 07.07.42
Sun and Moon Data 08.07.42
 
- 27 -
 
           
           
           
    continued      
    08.07.42      
        according to the English Sailing Handbook "East Coast of United States Pilot" Vol. 1 even in peacetime for ship over 6 meters draft proceed on the route through the Long Island Sound.  
    04.25 CA 5222 Patrol vessel astern to starboard, range about 600 meters. moved off unnoticed.  
   

05.20

05.35

CA 5213 2 lights bearing 273°T high above the horizon, nearly without shifting.  From the throwing of flares recognized as an airship.  Lands later by bearing a bit north of Lakehurst.  
    06.30 CA 2878 Patrol vessel astern to port, distance about 500-600 meters.  Showed the stern and moved off at low speed unnoticed.  
    07.15 CA 2799 Aircraft bearing 290°T on N-course.  
    08.10 CA 2877 Ahead to port about 400-500 meters a shadow of a patrol vessel, turned off hard to starboard and moved off.  
    08.36 CA 2878 Search light battery bearing 314°T.  Installation presumably at Sandy Hook.  
      SSW 3, Sea 2, 3/10, 1018 mb, +22°C  
    09.00 CA 3878 Dived and put the boat on the bottom in the deep channel 12 nm south of Ambrose Lightship depth A -14 meters and course 168°.  
        Day's run:               50.6 nm  
                                         7.9  
                                          58.5 nm  
                           7 July    4550.1  
                         total:       4608.6 nm  
        While diving was overrun by a patrol vessel.  
        During the night the following navigation beacons were used:  
        Ambrose Lightship, Navsink, air flashing lights, Seagrit and wreck buoy in about φ = 40°04'N, λ = 73°39'W (flashing group 3 groups, repeats16 seconds) and φ = 40°20'N, λ = 73°48'W (flashing group 2 groups, repeats x seconds).  Beacons as in peacetime with the exception of Seagrit (new identifier:  shines 4 seconds pause 4 seconds, repeat 8 seconds).  Low key street lighting in the seaside from New Jersey, cars not dimmed, houses darkened.  No steamer traffic under the coast within the 20-meter line.  
        The observed patrol vessels were all of type P.C. 450.  Due to their low silhouette they were very difficult to make out and were seen very late.  
    13.20   Bearing 355°T a tone sifting up and down with increasing volume and steady bearing.  Approaching very slowly and  
           
Sun and Moon Data 08.07.42
 
- 28 -
 
           
           
           
    continued      
    08.07.42      
        for a long time had the suspicion that the source of the sound was from own boat.  Like a high speed aircraft or an outboard motor.  Sounds as if a steam or compressed air line was in the water.  
    13.40   Sounds were so loud that communication in the boat were possible only with a loud voice.  Thereby formed the impression that the sound source is not found on the water surface, but at the same level as the side of the hull and could hit the boat at any moment.  
    13.44   Sound shifts out to 330°T was suddenly fainter and disappeared.  
    18.25   To the starboard side a patrol vessels runs along on a southerly course.  
    23.00 to 00.00   The unidentified sound described at 13.20 hours, never been heard before, is again perceptible, and the up and down tone is more pronounced than the first time and suggests that the Sea has risen. 1 sound bearing in 240°T.  
                                             
    09.07.42 Off New York Nights under land at the coast off New Jersey.  Days on the bottom in deep channel 17 nm abeam Seagrit.  
    00.00 CA 2878    
      On the bottom The sound seems to originate from a high speed gasoline engine and can be better distinguished this time because of the assumed Seas, and somewhat larger passing range.  Sound shifts ahead of the boat and when it is very faint in 130°T the sounds of 3 piston engines and 1 diesel (the latter by experience from a PC boat) arise in this direction one after the other and run out of hearing range bearing 10°T.  The last sound heard was the gasoline engine. These sound bearings suggest traffic along the deep channel.  
    03.41   Raised the boat from the bottom and moved off on course 280°.  
    04.18 CA 5211 Surfaced.  Went up to the 20-meter line on westerly courses and then with south and southeasterly courses along the coast off New Jersey.  Beacons as in the other night except for the wreck buoys which did not burn.  
      SW 3, Sea 1, cloudless, strong marine phosphorescence, Vis. good, 1014 mb, +15°C  
           
           
           
Sun and Moon Data 08.07.42
Sun and Moon Data 09.07.42
 
- 29 -
 
           
           
           
    continued      
    09.07.42      
    04.50 Marine phosphorescence suddenly disappears From a Radio Message from Control:  Lohmann and Hoeckner give situation report.  
    06.54 - 10.00 CA 5217 Between the 20-meter line and the deep channel (40-meter line) back and forth in position on course 36° and reciprocal.  With the starry clear sky and very good visibility is is like yesterday night when the coast could be seen clearly.  No traffic under land.  
      SW 3, Sea 2, few clouds, from 09.00 hours hazy horizon, 1015 mb, +22°C  
    10.02 CA 5212 Dived and put the boat on the bottom depth A -15 meters.  
        Day's run:               40.4 nm  
                                         2.3  
                                          42.7 nm  
                           8 July    4608.6  
                         total:       4651.3 nm  
    10.24 - 10.45   Faint sound of a diesel, that arises in 156°T and disappears in 326°T.  
    11.00 - 11.10   Sound of a piston engine.  Arising in 266°T, disappearing in 326°T.  
    14.15 and   Sound bearing of gasoline engine at great range in sector from 350-230°T.  
    14.45    
    16.05 and      
    17.45      
    18.07 - 20.22      
    21.00 - 21.12   Sound bearing of a piston engine, that runs off on course about 20°.  
        Additionally the sound of the gasoline engine is still heard at great range up to 23.05 hours.  
        Today's sound bearings also suggest shipping at dawn along the deep channel.  Therefore, decide to move off further to catch this traffic at night.  
                                             
    10.07.42 Off New York For the 4th time nights under the coast, days offset further on the bottom.  
    00.00 CA 5212    
    01.35 - 01.40 On the bottom Boat was exactly overrun by a steamer at high speed and course 130°.  
    03.53 CA 5212 Surfaced.  Went to the 20-meter line on westerly courses.  
      SW 1, calm Sea, cloudless, 1021 mb, +20°C, hazy horizon, at times marine phosphorescence    
           
           
Sun and Moon Data 09.07.42
Sun and Moon Data 10.07.42
 
- 30 -
 
           
           
           
    continued      
    10.07.42      
    04.53 CA 5211 Ran along the coast on S and SE courses.  Visibility conditions today worse then in the previous days.  The coast is just visible.  No traffic!  Moreover leaden sea.  
    06.00 CA 5214 Set off from the coast on course 120° to give the requested situation Radio Message.  
    07.50 CA 5251 Fishing flotilla (about 10 vessels) with bright working lights.  
      SW 1, calm Sea, cloudless, Vis. good, 1022 mb, +23°C    
    10.12   Beginning of morning twilight.  
    10.50 CA 5292 Radio Message:  From Lohmann:  Since 6 July days on the bottom square CA 2878 to 5229, nights 2799 to 5217.  4 nights no traffic inside the 20-meter line.  Slight deep channel traffic, in and out only neutral, days sound bearings,  Heavy sea surveillance, PC-boats, slight air.  Believe unnoticed up to now.  Wind calm, mirror flat Sea, 1025 mb, +23°C.  Missing Serial Nos. 4 Jul 250, 6 Jul 275-80, 8 Jul 219-23, 25 and 8, 231-234.  
    11.22 CA 5293 One half hour after giving report aircraft bearing 30T with southeasterly course.  Distance about 4000-5000 meters.  Was probably not noticed.  Crash dive.  
        Day's run:               68.1 nm  
                                         3.8  
                                          71.9 nm  
                           9 July    4651.3  
                         total:       4723.2 nm  
    11.52 CA 5293 Put the boat on the bottom depth A -16 meters.  
      E 1, calm Sea, cloudless, 1022 mb, +22°C, Vis. good    
    12.50  )      
    17.05  )      
    17.14  )   Detonation of bomb series heard at very long range.  No bearings.  
    17.19  )    
                                             
    11.07.42 Off New York Remained on the surface by day.  Transit along the coast to the south.  
    00.00 CA 5293    
      On the bottom    
    00.53 NE 1, Sea 1, overcast, hazy horizon, 1023 mb, +19°C Surfaced.  With northerly and westerly courses headed to the entrance to the deep channel to New York and moved back and forth in position.  The fishing flotilla lies in nearly the same place as yesterday with bright working lights  
           
Sun and Moon Data 10.07.42
Sun and Moon Data 11.07.42
 
- 31 -
 
           
           
           
    continued      
    11.07.42   and was passed at a distance of about 2 nm.  
    03.45 CA 5265 Radio Message from Control 1252/10/264:  
      SW 1, calm Sea, overcast, very dark night, 1022 mb, +20°C To Lohmann:  Traffic from Naval square CA 27 possibly only by day.  If operations area seems unfavorable, free to maneuver up to CA 79.  Day and night traffic.  
    05.30 CA 5243/42 Decision:  Per this enlargement of the operations area advance at economical transit speed following along the coast slowly to the south remaining on the surface all day between the 60 and 70 meter limit.  Potash cartridge consumption is too high.  
    08.00 CA 5261 Steered on south and southwesterly courses.  Very dark night, no horizon and increasingly bad visibility.  
      SSW 3, Sea 2, overcast, violent rain showers, dark night, 1019 mb, +22°C, St. Elmo's fire on the rod antenna.  
   

 

Sunrise 11.33 hours.  
10.45
    12.00 CA 5289 Day's run:               90.0 nm  
      SE 6, Sea 5, overcast, rain shower, Vis. bad, 1016 mb, +22°C                                  1.2  
                                        92.1 nm  
                       10 July    4723.2  
                         total:        4815.3 nm  
    16.00 CA 5528 Radio Message from Control:  To boats in the American operations area:  
      SSW 4, Sea 3, clearing, Vis. good, 1014 mb, +24.5°C  
      Apparently, after the heavy merchant ship losses in June, the enemy has from the beginning of July arbitrarily stopped traffic in some areas.  These measures can only be for a limited duration and will lead to a strong sudden glut of traffic.  Seize this moment, use every opportunity tenaciously.  Report immediately, so that other boats are not positioned in empty areas.  Until then, search systematically but with economical fuel consumption.  
    20.00 CA 5581    
      WSW 4, Sea 3, cloudless, Vis. very good, 1015 mb, +25°C    
                                             
    12.07.42 East coast of North America, off Delaware Bay    
    00.00 CA 5811 Headed for the sea area at Winter Quarter Lightship on SW and W courses.  
      W 3, Sea 2, few clouds, Vis. good, 1016 mb, +27°C  
    04.00 CA 5756    
           
           
Sun and Moon Data 11.07.42
Sun and Moon Data 12.07.42
 
- 32 -
 
           
           
           
    continued      
    12.07.42 Wind calm, calm Sea, cloudless, very hazy horizon, very dark night, 1020 mb, +25°C    
    06.45   Am approximately 2.5 nm from the lightship position.  Known lighted buoy lies in place of the lightship.  
   

 

08.30

 

CA 5771

Increasingly bad visibility and no insight into coastal traffic is possible.  When, after advancing along the 20-meter line to the Black Fish Bank lighted buoy and Assateague lighthouse, moved off from the coast on course 117°.  
      Weather unchanged    
    11.42   Sunrise.  
    12.00 CA 5788 Day's run:             167.2 nm  
      S 1, calm Sea, cloudless, Vis. good, 1020 mb, +27°C                 11 July    4815.3  
                       total:      4982.5 nm  
    13.20 CA 5784 Dived and put the boat on the bottom, depth A -17 meters.  
        Intention for 13 July:  Continued advance to the south.  Nights monitor coastal traffic at the Hog Island Lighthouse.  
                                             
    13.07.42 East coast of North America, off Delaware Bay    
    00.00 CA 5784    
      On the bottom    
    00.30 Wind calm, flat sea, cloudless, hazy, hazy horizon To save potash cartridges and receive missing Serial Nos. and Radio Broadcast surfaced still in lightness to continue transit to the south.  
    00.44   Crash dive for aircraft abeam to starboard, parallel course, distance about 800 meters.  Was noticed!  
    00.45   3 quite well-placed aircraft bombs at depth A -50 meters, slight damage.  
        Moved off to the east submerged.  
    04.04 CA 5794 Surfaced after darkness.  Marine phosphorescence, leaden sea.  
      Wind calm, flat Sea, hazy horizon, lightening and marine phosphorescence, 1027 mb, +18°C  
         
      Closed to 16 nm off the coast on course 317°, then on course 45° parallel to the coast.  
    08.00 CA 5756 Shift of the operations are to the south broken off because for the first time since arriving at the coast the boat was noticed with certainty on a southerly course and because up to now not a single success report from boats positioned to the south.  The Radio Message from 11 July concerning situation in the American operations area must also bring great opportunity to us sometime.  
      WSW 1, calm Sea, Vis. medium, 1027 mb, +23°C  
           
Sun and Moon Data 12.07.42
Sun and Moon Data 13.07.42
 
- 33 -
 
           
           
           
    continued      
    13.07.42      
    12.00 CA 5733 Day's run:               72.9 nm  
      SW 1, calm Sea, cloudless, Vis. medium, 1027 mb, +23°C                                10.4  
                                       83.3 nm  
                         12 July   4982.5  
                         total:       5065.8 nm  
    14.04 CA 5577 Dived and put the boat on the bottom depth A -15 meters.  
    15.53   Very faint sound bearing in 110 to 140°T.  Raised the boat from the bottom, sound bearing put ahead.  Very strong interference by self noise, impact of the shaft since the aircraft bombs from early today in the GHG and KDB.  
    17.00 CA 5577 With frequent stopping of the motors, in 140°T several sounds are audible, among them a piston engine is recognized.  
    18.14 CA 5577 Surfaced and pursued the sound bearing on course 150°.  
      W 1, calm Sea, cloudless, Vis. very good, 1016.5 mb, +25°C    
    19.32 CA 5811 Dived for sound bearing.  
        No bearing determined.  For a second time in nearly the same sea area fooled by a sound bearing.  
    20.29 CA 5819 Surfaced and continued transit to the north.  
      W 1, flat Sea, cloudless, Vis. very good, 1016.5 mb, +25°C    
    23.00   Came to westerly course with the intention to head for the entrance of Delaware Bay for the night.  
    23.35 CA 5577 Again sighted by an aircraft bearing 90°T, southerly course, distance about 8-9 nm.  
    23.36   After crash dive well-placed aircraft bombs (number:  1-3) at depth A -45 meters.  
                                             
    14.07.42 East coast of North America at the level of the Delaware Bay Northerly transit into old operations area off New York  
    00.00 CA 5577 Moved off to the west submerged at depth A -25 meters.  
    01.00 CA 5577 2 aircraft bombs at depth A -40 meters, harmless distance.  It is incomprehensible what may have served as a target after an hour proceeding submerged.  Course change to 50°.  
           
           
Sun and Moon Data 13.07.42
Sun and Moon Data 14.07.42
 
- 34 -
 
           
           
           
    continued      
    14.07.42      
    04.15 CA 5575 After the beginning of complete darkness surfaced and 8 minutes after surfacing the boat was overflown by a very slow flying aircraft at about 100-150 meters altitude with SE course.  
      SW 2, Sea 1, cloudless, Vis. medium, weak marine phosphorescence, 1025 mb, +23°C  
      Motors heard clearly.  Sighted too late for defense with machine guns.  Suspect we were sighted due to marine phosphorescence and the very calm sea.  
        Crash dive!  
    06.16 CA 5573 Surfaced.  Course for the deep channel off New York.  
      Weather unchanged    
    10.50 CA 5552 Dived at dawn and put the boat on the bottom depth A -12 meters, overhaul work on the diesel.  
        Day's run:               92.9 nm  
                                       24.4  
                                         117.3 nm  
                         13 July    5065.8  
                         total:        5183.1 nm  
                                             
    15.07.42 Off New York Continued transit to the deep channel off New York  
    00.00 CA 5228 All wave receiver in service again.  
      On the bottom    
    03.16 CA 5228 Surfaced.  
      SSW 3, Sea 2, 2-10, summer lightening, 1016 mb, +22°C, Vis. medium Course 15°.  
    08.00 CA 5591    
      SW 2, Sea 1, 2/10, strong marine phosphorescence, dark night, Vis. medium, 1017 mb, +23°C    
    10.29   Dived and put the boat on the bottom off the entrance to the deep channel depth A -10 meters  
        Day's run:               57.0 nm  
                                         2.6  
                                         55.6 nm  
                         14 July    5183.1  
                         total:       5242.7 nm  
        Radio Message from Ostermann:  "For 3 nights "Diamond" to "Lookout" nothing seen." strengthens my resolve to wait on the onset of traffic in the north.  
                                             
           
           
Sun and Moon Data 14.07.42
Sun and Moon Data 15.07.42
 
- 35 -
 
           
           
           
           
    16.07.42 Off New York Back and forth and on the bottom in the deep channel off main harbor.  
    00.00 CA 5262 From lying on the bottom until surfacing neither sound bearings nor the detonation of scare depth charges or aircraft bombs indicate traffic.  
      On the bottom  
        The number of missing Serial Nos. increases every day and we are also cut off from the radio news from home for days.  
    02.37 CA 5262 Boat raised from the bottom.  
    03.17 SW 1, calm Sea, cloudless, hazy, very hazy horizon, 1021 mb, +19°C Surfaced in the evening twilight.  Again mirror flat Sea, bad visibility and marine phosphorescence  
      Changing courses off the deep channel.  By the type of air and sea surveillance, traffic must be expected here as soon as the arbitrary restriction on the entire US coast is lifted.  
    08.00 CA 5238    
      NW 1, Sea 1, cloudless, Vis. very good, 1021 mb, +21°C    
    10.17 CA 5228 Dived and put the boat on the bottom, depth A -20 meters.  
      NW 1, flat sea, cloudless, Vis. very good, 1024 mb, +21°C Day's run:               56.4 nm  
                                      2.4  
                                         58.8 nm  
                         15 July    5242.7  
                         total:       5301.5 nm  
        Sound bearings of the gasoline engine as on 8 and 9 July at great range.  
    xx.37   3 aircraft bombs.  
    19.52   1 aircraft bomb.  
    23.11   4 aircraft bombs.  
    23.35   1 aircraft bomb.  
                                             
    17.07.42 Off New York Transit into the free sea area to the south.  
    00.00 CA 5228    
      On the bottom    
    03.40 CA 5229 Surfaced.  
      Calm wind, Calm Sea, overcast, hazy, Vis. very bad, 1027 mb, +17°C Transit to square CA 58-59 to search for traffic there in the deep channel off New York, as determined by day from sound bearings during the day.  
    08.00 CA 5293    
      SSE 2, Sea 1, overcast, low clouds, marine phosphorescence, 1027 mb, +22°C    
           
Sun and Moon Data 16.07.42
Sun and Moon Data 17.07.42
 
- 36 -
 
           
           
           
    continued      
    17.07.42      
    11.42 CA 5615 Crash dive for aircraft bearing 335°T.  
    12.00 CA 5615 Day's run:               67.2 nm  
                                        3.5  
                                         67.7 nm  
                         16 July    5301.5  
                         total:       5369.2 nm  
    14.25 CA 5624 Surfaced.  
      SSE 1, calm Sea, overcast, Vis. good, 1028 mb, +23°C    
    15.27 CA 5628 Crash dive for aircraft with southerly course, abeam to port bearing 60°T.  
    17.00 CA 5651 Surfaced.  
      SSE 2, Sea 1, 7/10, hazy horizon, 1029 mb, +23°C    
    18.44 CA 5655 Crash dive for aircraft with southeasterly course (biplane) 60° to starboard, 260°T.  
    20.56 CA 5658 Surfaced.  
      SSW 2, Sea 1, 8/10, Vis. very good, 1028 mb, +25°C    
    22.00   A situation report is requested.by Radio Message 1855/17/211.  
                                             
    18.07.42   Course into new operations are at Cape Sable.  
    00.00 CA 5697    
      SSW 2, Sea 1, 6/10, Vis. very good, 1029 mb, +26°C    
    00.30 CA 5969    
      Wind calm, calm Sea, cloudless, marine phosphorescence, 1027 mb, +27°C    
    07.45   Radio Message to Control:  Square CA 4993 to 5225 nothing seen.  By sound bearings by day light independent traffic in the deep channel off New York.  Very brisk air, sea only 5220,  Search from today traffic 58 and 59.  85 cbm.  Mirror flat Sea, 1025 mb, +22°C, hazy.  Reception in general only from 04.00 to 10.00 hours.  Am missing:  13 Jul 225, 6, 9; 14 Jul 245-9; 15 Jul 267, 9, 70, 3, 286.  
    08.00 CA 5983    
      S 1, Sea 1, 3/10, Vis. good, 1026 mb, +25°C    
           
Sun and Moon Data 17.07.42
Sun and Moon Data 18.07.42
 
- 37 -
 
           
           
           
    continued      
    18.07.42      
    12.00 CA 5974 Day's run:               142 nm  
      SSW, Sea 1, 3/10, Vis. good, 1023 mb, +25°C                                13.8  
                                       156.0 nm  
                         17 July    5369.2  
                         total:       5525.2 nm  
    16.00 CA 5984 Radio Message 1211/18/232:  Lohmann operate on traffic that runs from Boston via CB 1110, BB 7770, BB 7760.  Mainly convoy traffic.  From observations traffic passes Cape Sable at a distance of about 30 nm.  
      SW 3, Sea 2, 5/10, Vis. good. 1022 mb, +26°C  
    20.00 CA 5951    
      SW 3, Sea 2, 5/10. Vis. very good, 1022 mb, +27°C    
    2x.x7 CA 5967 Crash dive for aircraft with southwest course bearing 20°T.  
    22.00 CA 5968 Surfaced.  
      WNW 3, Sea 2, 5/10, Vis. very good, 1019 mb, +25°C    
                                             
    19.07.42 East Coast of the USA south of Nantucket Transit to the new operations area off the south coast of Nova Scotia.  
    00.00 CA 6741    
      WNW 4, Sea 3, 5/10, Vis. very good, 1019 mb, +26°C    
    04.00 CA 6716    
      W 2, Sea 1, cloudless, moonshine, 1019 mb, +22°C    
    08.00 CA 6494    
      WNW 3, Sea 2, 7/10, 1017 mb, +22°C, Vis. good    
    11.19   Sunrise.  
    12.00 CA 6545 Day's run:              166.8 nm  
                                         3.7  
                                        170.5 nm  
                         18 July    5525.2  
                         total:       5695.7 nm  
    16.00 CA 6526 After 14-days "in the cellar", often lying on the bottom 15 hours during the day with only 6°C water temperature, surface transit in the warm, sunny weather means a welcome break for the boat and crew.  
      NW 4, Sea 3, overcast, Vis. bad, 1015 mb, +22°C  
    20.00 CA 6296    
      NbyE 4, Sea 3, 3/10, Vis. good, 1017.5, +25°C                                      
         
           
           
Sun and Moon Data 18.07.42
Sun and Moon Data 19.07.42
 
- 38 -
 
           
           
           
           
    20.07.42 Off the Gulf of Maine Continuous transit on the surface along the Georges Bank to the North  
    00.00 CA 6354    
      NNW 3, Sea 2, fog, 1018 mb, +23.5°C    
    04.00 CA 6335    
      E 1, Sea 1, cloudless, Vis, changing moderate to bad at times fog, 1017 mb, +23°C    
    08.00 CB 1776    
      E 2, Sea 1, cloudless, Vis. good, 1017 mb, +25°C    
    12.00 CB 1764 Day's run:             176.7 nm  
      ESE 2, Sea 1, 4/10, Vis. good, 1018 mb, +23°C                 19 July   5695.7  
                       total:      5872.4 nm  
    16.00 CB 1811 The transition into the cold Labrador Current causes impenetrable fog, visibility seldom over 200 meters.  
      SE 1, calm Sea, fog, 1017 mb, +20°C, long SE-Swell  
    20.00 CB 1585    
      ESE 3, Sea 2, fog, long SE-Swell, 1017 mb, +20°C    
                                             
    21.07.42 Gulf of Maine Browns Bank south of Cape Sable.  
    00.00 CB 1535    
      SE 1, Sea 1, fog, long SE-Swell, 1017 mb, +19°C    
    04.00 CB 1292    
      S 2, Sea 1, fog, long SE-Swell, 1018 mb, +19°C    
    08.00 CB 1262    
      SE 1, Sea 1, fog, 1016 mb, +17.5°C    
    12.00 CB 1223 Day's run:             1787.0 nm  
      S 2, Sea 1, fog, 1016 mb, +14°C                 20 July    5872.4  
                       total:      6050.4 nm  
    12.42 CB 1233 Dived for test dive.  
        Afterwards boat put on the bottom (depth A +1 meter), to attempt to detect the reported traffic south of Cape Sable by sound bearings.  During the last 24 hours thick fog.  Visibility 200 meters.  
        No sound bearings.  
           
Sun and Moon Data 20.07.42
Sun and Moon Data 21.07.42
 
- 39 -
 
           
           
           
    continued      
    21.07.42      
    21.38   Because the boat does not stay put and does not lie calmly on the bottom in the strong current, raised the boat from the bottom and  
    22.54   again put the boat on the bottom (depth A -1 meters)  
                                             
    22.07.42 South of Nova Scotia Nights under the south tip of Nova Scotia.  
    00.00 CB 1234    
      On the bottom    
    02.51 NE 1, calm Sea, fog, 1022 mb, +11°C Surfaced in the evening twilight.  Headed for Cape Sable on northerly course.  Cross bearings from Cape Sable, Seal Island and Blonde Rock lighted buoy.  
        Identifiers as in peacetime.  On land no black-out.  
    04.00 BA 9983    
      Unchanged    
    06.42 BA 9956 Blonde Rock lighted buoy 5.5 nm away.  Moved off from the coast on a southerly course.  No traffic.  
      NE 1, calm Sea, 5/10, Vis. good, 1022.5 mb, +12°C  
    11.04   Sunrise.  
    11.18   Dived and continued submerged.  
    12.00 BA 9989 Day's run:               73.7 nm  
                                        8.5  
                                         82.2 nm  
                         21 July    6050.4  
                         total:       6132.6 nm  
    1x.x5 CB 1234 Boat put on the bottom.  
    13.36   Again the boat does not lie calmly at times pounds strongly on the rocks.  Therefore raised the boat from the bottom and at slowest submerged speed ran back and forth in position on N and S courses.  
                                             
    23.07.42 South of Nova Scotia Pursued a sound bearing in the fog.  
    00.00 CB 1234 Proceeding submerged.  
    02.12 CB 1234 Sound bearing from sounds in sector 124 to 130°T.  Type of sound not determined, seems to shift to the west.  
    02.33 CB 1237 Surfaced and pursued at 2 x HF and course 154°.  
      ENE 3, Sea 2, fog and drizzle, overcast, 1022 mb, +14°C Soundings show a strong southerly displacement.  
           
           
Sun and Moon Data 21.07.42
Sun and Moon Data 22.07.42
Sun and Moon Data 23.07.42
 
- 40 -
 
           
           
           
    continued      
    23.07.42      
    03.33 - 03.45 CB 1261 Dived for sound bearing.  Bearing in 195°T.  Specifics not distinguished.  Course 220°.  
    04.46 - 04.54 CB 1259 Dived for sound bearing.  Sounds are louder in 165°T.  
      ESE 3, Sea 2, thick fog with rain, 1020 mb, +15°C Course 180°.  
    05.56 - 06.15 CB 1286 Dived for sound bearing.  Sounds were clearer in 230°T, course 200°.  
    07.37 - 07.53 CB 1524 Dived for sound bearing.  
      SW 3, Sea 2-3, very thick fog, summer lightening, 1019 mb, +16°C Sounds bear 263°T and have become even louder.  Despite this the RPM is still not determined.  Suspect:  several vessels, that by sound bearings steer 180-220°.  Course 220°.  
    09.16 - 09.30 CB 1543 Dived for sound bearing.  
        Sounds bear 255°T.  
        Course 230°.  
    10.38 CB 1547 Fog signal abeam, very close.  Turned away to port.  In the sound gear propeller sounds heard at surface speed (80-100 RPM).  Lost again by turning.  
    11.23 - 11.36 CB 1493 Dived for sound bearing.  
        Several vessels heard bearing 230°T.  
        Pursued.  
    12.00 CB 1493 Day's run:               130.3 nm  
      Wind calm, flat sea, light fog, 1021 mb, +16°C                                 26.0  
                                       156.3 nm  
                         22 July    6132.6  
                         total:       6288.9 nm  
    13.30 CB 1497 Stopped for sound bearing on the surface.  Several loud propeller sounds to starboard and to port close-by.  
        Fog signals of 3-5 steamers.  
        30° to port the shadow of a large tanker appears in the thick fog (bow right, target angle 110°, range about 500 meters).  Ob.Strum reports destroyer abeam to port.  Turned away to starboard with hard ruder.  
    13.38   While turning to port to attack, the tanker passed out of sight in the fog.  
    13.45   Ahead to port the wake of a vessel that cuts across our course.  
        Shortly thereafter in about 300 meters a destroyer bow right, target angle about 50°, medium speed.  
        The torpedo officer aims the two fan set for the tanker on the destroyer in the UZO binoculars.  
    13.47   Boat turns to starboard.  Intense shooting  
           
           
Sun and Moon Data 23.07.42
 
- 41 -
 
           
           
           
    continued      
    23.07.42      
        by about 5-6 machine guns (range 200 meters)  
    13.49   In target angle 70-80°:  "Fire Fan" - sketch.  
        Crash dive.  
        Shooting data:   
           
    13.49   During diving maneuver 2 sharp detonations causing minor failures.  Iindicate hits?  
    13.50   A dull distant detonation, seemingly in the direction of the torpedo shot.  
    13.52 CB 1731 Boat settles through to the bottom.  Depth:  A -15 meters.  In the direction of the torpedo tracks at times stopping propeller sounds of 2-3 vessels.  Convoy located in 225°T.  
    13.55 - 17.45   Sound bearings from different vessels (turbine, diesel and piston engines) that are approaching, receding or overrunning the boat.  Occasional Asdic impulses.  
        The behavior of the enemy after the fan shot, (sudden ceasing of artillery fire after the detonation and no depth charge pursuit) reinforces the presumption that the destroyer (or gun boat of the "ERIE" class) was hit.  
    16.06   Boat begins to slide strongly in the current and was raised from the bottom, to shift the lying place.  
    17.20 CB 1731 Boat put on the bottom.  Depth A -13 meters and was passed to port by a diesel at low range.  
    18.09   Boat raised from the bottom.  Proceeded submerged course east.  
                                             
    24.07.42 South of Nova Scotia On the Georges Bank  
    00.00 CB 1732 Proceeded submerged.  
    03.32 CB 1733 Surfaced.  Move off to the east to send Radio Message.  
      Wind calm, flat sea, fog, 1022 mb, +16°C    
    06.17 CB 1587 Radio Message 0330/24/272:  From Lohmann:  After 13 hour pursuit by sound bearings from naval square CB 1234 to 1723 contact with convoy.  12 knots, course 210°, by fog signals 3-5 steamers.  Day surface attack in thick fog on large tanker thwarted by destroyer.  2 fan on destroyer, good data.  Artillery fire at 200 meters.  While crash diving 2 sharp detonations.  4 hour sound pursuit at depth A -15 meters, no  
           
           
Sun and Moon Data 23.07.42
Sun and Moon Data 24.07.42
 
- 42 -
 
           
           
           
    continued      
    24.07.42   contact since 23 July 15.00 hours.  72 cbm.  Mirror flat Sea, 1022 mb, +16°C, fog.  Am missing:  21 July 207, 814, 15.  
    06.30 CB 1587    
      NW 1, Sea 1, thick fog, Vis. 300 meters, 1022 mb, +18°C Ran along the eastern edge of the Georges Bank on course 25°, to detect traffic on the determined convoy route together with east-west traffic south of Cape Sable.  
    11.36 CB 1543 The shadow of a vessel bearing about 290°T at dawn in fog range about 700 meters.  Showed stern with hard starboard rudder and AK ahead (engines were in diesel electric slowest speed setting).  
      NE 2, Sea 1, overcast, fog, Vis. changing at times 200-1000 meters, 1022 mb, +16°C  
        Vessel quickly turns after.  Approaches from astern to starboard with bow left target angle 40° to 300 meters.  
        Coast Guard cutter type "COMANCHE" distinguished.  Increased distance with hard rudder to port and AK.  
        Crash dive with vessel astern to port.  Range about 500 meters bow left, target angle 60-70° (see sketch).  
    11.31   Overrun at depth A -45 meters.  
        Day's run:               89.9 nm  
                                       15.5  
                                         105.4 nm  
                         23 July    6288.9  
                         total:       6394.3 nm  
    11.40   Boat put on the bottom, depth A -4 meters.  
    11.47 - 14.35   Boat was overrun again by the Coast Guard cutter.   
        Asdic impulses were distinguished in the listening gear and the sounds from several vessels, which overlap each other so that counting is not possible.  Presumably a convoy with a northerly course.  
        A piston engine remains in the vicinity until last and steady ticking in tone and rhythm like depth sounding impulses or an alarm clock.  
    14.42   Raised the boat from the bottom.  Without considering the possibility of silent running, worked with pumps, compressors and propellers to determine if there is still sound pursuit.  
    16.35   Last sound bearing in 5°T.  Nothing seen in the periscope.  
    16.55   Bearing in 320°T has become a little clearer.  There must be two mostly overlapping vessels  
        Scattered Asdic impulses.  
        In the periscope nothing distinguished due to fogging in the periscope and bad visibility.  
           
Sun and Moon Data 24.07.42
 
- 43 -
 
           
           
           
    continued      
    24.07.42      
    17.15   Sounds bear 285°T and were fainter.  
    17.50   Sounds no longer distinguished.  
        Due to the unfavorable weather situating and hopelessness of the pursuit remained submerged until darkness.  
    19.10   Boat put on the bottom, depth A +5 meters.  
                                             
    25.07.42 South of Nova Scotia Sank fishing schooner between Georges and Browns Bank.  
    00.00 CB 1551    
      On the bottom.    
    02.36 Wind calm, calm Sea, cloudless, bright moonshine, 1029 mb, +16°C Surfaced.  
      Set off to the east, (15 nm) then again on the accepted traffic route on course 10°.  
    04.00 CB 1561    
      Weather unchanged    
    08.00 CB 1294 40° to starboard (50°T) a faint light and soon thereafter the shadow of a sailing vessel.  
      WNW 1, Sea 1, Vis. very good, cloudy, 1028 mb, +17°C  
      Turned towards and prepared to open fire with artillery.  
    09.55 CB 1295 Close to 400 meters and opened fire with 8.8 cm cannon and MG/C 30.  On beginning shooting it was recognized that it was a fishing schooner of about 500 GRT whose about 10-12 man crew is found in 3 large rowboats.  
    10.05 Wind calm, calm Sea, 7/10, Vis. good, 1028 mb, +17°C After 20 incendiary and 16 shots explosive shells the sailing vessel was left on fire and sinking astern.  Set off 2.5 miles to the east, then again on course 10°.  
    12.00 CB 1266 After sunrise dived to proceed submerged, course 10°.  
      Weather unchanged, hazy horizon Day's run:               73.8 nm  
                                      8.0  
                                         81.8 nm  
                         24 July    6394.3  
                         total:       6476.1 nm  
    16.00 CB 1263    
    20.43 CB 1239 2 detonations at great range heard in the boat.  
                                             
           
           
Sun and Moon Data 24.07.42
Sun and Moon Data 25.07.42
 
- 44 -
 
           
           
           
           
    26.07.42 South of Nova Scotia Nights with fog and full moon under land at Cape Sable.  
    00.00 CB 1239 Proceeding submerged course 10°.  
    00.50 CB 1239 Surfaced.  
      Wind calm, mirror flat Sea, thick fog, Vis. at times only 50 meters, 1030 mb, +11°C After 1 hour charging and with completely calm Sea in fog remained lying stopped with manned listening gear.   
      While doing overhaul work and searching for the source of the rattling sound determined that the loaded aft upper deck canister is dented and torn near the vent.  
    04.00 CB 1233    
      Weather unchanged.    
    05.55   After visibility improved continued at KF diesel-electric on northerly course to Cape Sable.  Approaching up to the presumed traffic route.  
    07.20 BB 7774 Course 190°.  
    08.00 W 1, calm Sea, fog, 1031 mb, +13.5°C    
    12.00 CB 1263 Day's run:               55.4 nm  
      NNE 1, calm Sea, overcast, fog, Vis. changing, 1032 mb, +13°C                                21.3  
                                       76.7 nm  
                       25 July    6476.1  
                         total:       6552.8 nm  
    13.58 CB 1269 Crash dive for aircraft bearing 230°T (40° to starboard) range about 3000 meters, inexact course 40°.  
      Confused wind 1, Sea 1, cloudless, Vis. good, 1034 mb, +15°C  
    15.33 CB 1269 Surfaced.  
    15.52   Course 215°.  
    16.00 CB 1293    
      Weather unchanged    
    16.46 CB 1297 In 178°T the outline of a fishing schooner was distinguished in the mist.  
    20.00 CB 1531 Dived.  Intention:  go up to the schooner submerged and after warning shots with MG/C 30 sink him with a surface torpedo shot.  Preparations for artillery combat were completed.  
      NE 1, Sea 1, cloudless, Vis. good, 1033, +19°C  
    21.10   Surfaced.  Schooner is about 1500 meters away.  
    21.16   5 shots with the MG/C 30.  
        On the schooner no preparations to abandon, also there are no fishing boats in sight in the vicinity.  Schooner had only awnings set and made little speed.  
    21.19   Aircraft abeam to starboard (310°T).  
        It is relatively close and must have been  
           
           
Sun and Moon Data 26.07.42
 
- 45 -
 
           
           
           
    continued      
    26.07.42   overlooked when surfacing.  
        Crash dive.  
        Submerged a fluctuating whistle tone is heard at all locations in the boat and in both listening devices.  It is easily distinguished when the tone occurs in the boat and when one searches in all around sound sweep.  
        Due to the fluctuating volume determining the direction in the sound gear is difficult and uncertain.  From the direction of the schooner from time to time a few beats of a slow engine are heard.  Additionally, it is notable that this whistling tone could be heard during the underwater approach to the schooner, but when it was still unknown to the crew, it no importance was attached.
 
        Boat goes to depth A +20 meters and runs off at silent speed on course 70°.  The strongly changing stratification of the water in specific gravity and temperature seem to complicate locating.  
                                             
    27.07.42 Southeast of Nova Scotia Forced to submerged at night by suspicious schooner in the full moon.  
    00.00 CB 1532 Submerged, silent running to run off from the locating fishing trawler.  
    02.05 - 03.45   At changing volume the sounds of about 3 vessels are heard.  Occasionally, sounding-like ticking.  
    06.45 CB 1378 The locating impulses are still faintly heard for about one hour.  
      Wind calm, Sea 0, 5/10, bright full moon, Vis. good, 1035 mb, +15°C  
      Surfaced  
      Course 63°.  
    08.00 CB 1376    
      Weather unchanged    
    11.09 Sun rise    
    11.44 Moon set    
    12.00 CB 1365 Day's run:               92.1 nm  
      E 1, calm Sea, 5/10, Vis. very good, 1036 mb, +18°C                                27.3  
                                       119.4 nm  
                         26 July    6552.8  
                         total:       6672.2 nm  
    16.00 CB 2127 In the nightly news broadcast of the Nova Scotia transmitter the sinking of the Canadian fishing schooner on 25 July was admitted and described.  The 11-man strong crew was able to save themselves.  
      Wind calm, flat sea, 7/10, Vis. very good, 1036.5 mb, +20.5°C  
           
           
Sun and Moon Data 26.07.42
Sun and Moon Data 27.07.42
 
- 46 -
 
           
           
           
    continued      
    27.07.42      
    19.05 CB 2131 A life ring labled "DONOVANIA" (sunk by U-Lassen on 21 July in ED 9945) was fished out.  Drifting wreckage.  
    20.00 CB 2136    
      E 1, calm Sea, 3/10, Vis. very good, 1036 mb, +23.5°C    
                                             
    28.07.42 South of Nova Scotia In the morning twilight a destroyer type "GLEAVES".  
    00.00 BB 7891    
      Wind calm, calm Sea, 4/10, Vis. very good, 1031.5 mb, +23°C    
    00.30   Crash dive for aircraft at great range bearing 40°T (4° to starboard).  Course about 210°.  
    02.10 BB 7867 Surfaced.  Course 0°.  
    04.00 BB 7829    
      S 1, Sea 1, few clouds, 1034 mb, +21°C    
    06.10   Course 200°.  
    08.00 BB 7852    
    10.30   Distant artillery fire heard about astern to starboard.  
    11.06 BB 7884 In the morning twilight a destroyer (type "GLEAVES") bearing 66°T, range about 9000 meters, bow left about 30-40°.  High speed.  
      S 1, calm Sea, 7/10, Vis. good, 1031.5 mb, +19°C  
    11.35   Running off maneuver until about target angle 80° then destroyer [turns to] target angle 0°.  
    11.50   Crash dive, depth A +40 meters.  
        Propeller sounds become very loud, however do not overrun the boat.  
        Whistling of the locating gear at times very loud.  
    14.30 - 15.30   Still once more on going higher detected well by locating at depths between A +0 meters and A +20 meters.  Last sound bearing at 16.00 hours.  Slowly to lesser depths, switched diving planes to motor and drained with pumps.  When no sound pursuit followed, surfaced.  
    19.00 BB 7885    
      SSE 1, Sea 2, overcast, Vis. very good, 1029 mb, +18°C    
    23.00   By Radio Message 2046/28 was requested to give situation report with weather and fog prevalence.  
                                             
           
           
Sun and Moon Data 27.07.42
Sun and Moon Data 28.07.42
 
- 47 -
 
           
           
           
           
    29.07.42 South of Nova Scotia The third neutral independent.  
    00.00 CB 2169 Course 180°.  
      SE 3, Sea 2, overcast, Vis. good, 1027 mb    
    01.20 CB 2196 A smoke trace bearing 335°T.  
    01.55 CB 2196 Dived for sound bearing.  
        It was determined to be a fast running piston engine.  
    02.06   Surfaced.  
        Steamer had set lights and had a red cross marking (illuminated cross on smokestack and green stripes)  
        Course 180°.  
    04.00 CB 2436 Course 280°.  
      S 3, Sea 2, overcast, Vis. good, 1025 mb, +20°C    
    06.00   Radio Message 0407/29: From Lohmann:  Searched CB 1723, BA 9956, BB 7826.  Traffic only on route reported on 24 July.  25 July Canadian fishing schooner sunk square CB 1295.  26 July artillery against schooner thereafter aircraft and perfect underwater locating 1217.  Strong sea, medium air, 9 day leaden Sea, of these 5 with thick fog, SSE 1, Sea 1, 1025 mb, +19°C, overcast, 10 + 2 torpedoes.  62 cbm.  Am missing:  23 July 250, 24 July 274-8, 27 July 300.  
    08.00 CB 2422    
      Weather unchanged    
      Rain showers    
    12.00 CB 1633 Day's run:               129.5 nm  
      SSW 3, Sea 2, overcast, rain, 1022 mb, +20°C                                  13.6  
                                       143.1 nm  
                         28 July     6842.9  
                         total:        6986.0 nm  
    16.00 CB 1379    
      Wind confused, Sea 1, changing cloudiness, Vis. changing, 1020 mb, +20°C    
    20.00 CB 1612    
      Weather unchanged    
                                             
    30.07.42 South of Nova Scotia Search in fog for reported convoy.  
    00.00 CB 1345 Stopped half hourly for sound bearings in the thick fog and completely flat sea.  
      NNW 1, calm Sea, fog, 1020 mb, +19°C, light S-Swell  
    04.00 BB 7778    
      Flat Sea, fog, 1020 mb, +16°C    
           
           
Sun and Moon Data 29.07.42
Sun and Moon Data 30.07.42
 
- 48 -
 
           
           
           
    continued      
    30.07.42      
    04.30   Radio Message 0110/30 "U-Vogelsang" reports convoy 25 ships, course 270°, 7 knots in BB 8719.  
    08.00 BA 9993 Operated on this convoy on plotted course 65°.  
      NW 1, calm Sea, overcast, at times fog, 1020 mb, +12°C    
    10.00   Received orders to operate on the reported convoy by Radio Message 0929/30.  
    12.00 BB 7779 Day's run:              187.9 nm  
      NE 1, flat Sea, overcast, Vis. moderate, 1021.5 mb, +13°C                 29 July     6986.0  
                       total:      7173.9 nm  
    14.28 BB 7786 Crash dive for aircraft (3-engines) bearing 275°T.  
    15.38 BB 7783 Surfaced.  Continued search for the convoy.  
      Wind calm, calm Sea, overcast, 1021.5 mb, +14°C, Vis. changing    
    20.49 BB 7844 Dived for sound bearing.  
      NE 1, Sea 1, fog, 1022 mb, +17.5°C    
    21.07   No results.  
    21.45 BB 7844 Crash dive for aircraft bearing 135°T.  Course 225°.  
    21.46   Thereupon 5 aircraft bombs at depth A -15 meters.  
    22.12   2 times 2 aircraft bombs.  
        Soon thereafter sounds and many faint detonations as from Electroloten [explosive depth sounding charges].  
    23.07 - 23.22   Arising and subsiding again propeller sounds bearing 295°T.  
    23.44   Again detonations as from electroloten,  At times very loud.  
                                             
    31.07.42 South of Nova Scotia Boat positioned submerged.  
    00.00 BB 7844 In the vicinity detonations as from electroloten.  In addition at times the sounds mentioned in Kriegstagebüchern [other boats KTBs] as if gravel were thrown against the side of the hull and over deck,.  
    01.03 BB 7766 Surfaced.  
      NE 1, Sea 2, fog, overcast, 1021 mb, +14°C    
    05.10 BB 7782 Bearing 314 and 287°T.  Lights which at times assume a strikingly elongated shape.  
      E 2, Sea 1, overcast, rain showers, St. Elmo's fire, 1023 mb, +15.5°C  
           
           
Sun and Moon Data 30.07.42
Sun and Moon Data 31.07.42
 
- 49 -
 
           
           
           
    continued      
    31.07.42      
    05.15   Astern, bearing 90°T a quickly emerging shadow with a red [not understood word Hahn =cock = possibly smokestack or red hot gas escaping from the smokestack?] and large smoke cloud.  
        Recognized as a destroyer, that turns towards while attempting to maneuver away at high speed and hard rudder.  At bow right about target angle 60° and range about 600 meters astern bearing -  
    05.24   Crash dive.  
    05.33   Initially very loud sound bearing audible with the naked ear in the boat, however no overrunning of the boat.  Growing fainter and arising once more on a steady bearing.  
    08.55 BB 7782 Surfaced.  Course 180°.  
      N 1, calm Sea, 5/10, bright moon, 1023 mb, +14°C    
    09.07 - 09.13   White light bearing 100°T, then shifting to 52°T  
    12.00 CB 1353 Day's run:               133.9 nm  
      N 2, Sea 1, 2/10, Vis. good, 1025 mb, +15°C                                  17.2  
                                       151.1 nm  
                         30 July     7173.9  
                         total:        7325.0 nm  
    15.03 CB 1348 Crash dive for aircraft bearing 245°T.  
        Course about SE.  
    16.50   3 detonations from aircraft bomb series medium range.  
    18.00 CB 1371 Surfaced.  Course 234°.  
    19.03 CB 1296 Bearing 170°T a slanted masthead with a crow's nest in the top.  
        Held contact at the limit of visibility.  
    19.14   Crash dive for aircraft bearing 300°T.  
        Course SSE.  
    20.40 - 21.40   Distant sound bearings in 330°T.  
        64 and 110 RPM.  Furthermore the whistle tone is heard again without determining a bearing.  
        Proceeded submerged to repair the starboard diesel.  
    22.12 CB 1374 Surfaced.  Course 235°.  
      SSW 1, calm Sea, 3/10, 14.5°C    
    22.44 CB 1296 Crash dive for aircraft bearing 180°T.  
        Course S.  
    23.30 CB 1296 4 heavy detonations in apparently 260°T.  Again the whistle tone of the locating gear is heard at greatly changing volume (at time in all locations in the boat) (at times rhythm 26 impulses per minute).  
        Additionally sounds which give an exact bearing, as from an E-motor.  
           
           
           
           
Sun and Moon Data 31.07.42
 
- 50 -
 
           
           
           
    continued      
    31.07.42   Suspect a locating U-boat.  The bearing was put astern and out maneuvered by depth changes.  
                                             
    01.08.42 South of Nova Scotia Boats proceeds submerged.  
    00.00 CB 1296 Again screaming whistle rising and falling in volume and indeterminable, however good to take bearings on sounds as from an E-motor.  
    01.35   No sound bearings.  On going higher -  
    02.07   9 depth charges at medium range.  Thereafter faint whistle from indeterminable direction.  
    03.45   Electroloten and fluctuating in volume alarm clock-like ticking sounds.  
        At times very loud.  Sequence irregular.  
    04.13 - 04.22   Faint sound bearings apparently from 2 vessels bearing 140°T.  
    05.05   On going higher propeller sounds with whistle heard again.  
    07.18 CB 1299 Surfaced.  Course 90°.  
      Confused wind, calm Sea, overcast, 1025 mb, +15°C    
    10.15 CB 1381 White light 160°T, put astern.  
    11.31 CB 1359 Crash dive for aircraft bearing 340°T.  
      W 1, calm Sea, overcast, at times rain, 1026 mb, +15°C Course SSE.  
    12.00   Day's run:               84.0 nm  
                                         29.8  
                                         113.8 nm  
                         31 July     7325.0  
                         total:        7438.8 nm  
    12.23 - 13.00   Whistle without propeller sounds is heard again was louder and disappeared slowly.  
    15.30 CB 1367 Surfaced.  Course 110° to run off.  
      SE 3, Sea 2, 9/10, Vis. very good, 1022 mb, 18.5°C    
    18.00   Course 180°.  
    20.00 CB 2177 Excerpt of repeated Radio Message 2126/31:  
      SE 3, Sea 2, overcast, Vis. good, 1022 mb, +18.5°C 3.)  Lohmann operate on traffic that runs over the following squares:  CA 3217, BA 9821, 9916, BB 7774, 7551.  No supply.  
           
           
Sun and Moon Data 31.07.42
Sun and Moon Data 01.08.42
 
- 51 -
 
           
           
           
    continued      
    01.08.42      
        The squares given in the first reception of the Radio Message were garbled so a strip was adopted as Operations area which extends in a NNE-SSW direction at the eastern edge of the Georges Bank.  
        With regard to that course 230°.  
    20.00   Radio Message 1856/1 asked for a situation report.  
                                             
    02.08.42 South of Nova Scotia Fog transit to the new operations area and searched for the reported convoy.  
    00.00 CB 1661    
      S 1, calm Sea, 8/10, Vis. good, 1020 mb, +19°C    
    04.00 CB 1673    
      Wind calm, calm Sea, cloudless, Vis. changing, 1021 mb, +20°C    
    06.00 Radio message Radio Message 0420/2 sent:  From Lohmann:  
        BA 9969 to BB 7844 searched without results.  7 days 9 times submerged locating, strong air, 52 cbm, Position CB 1672, calm, 1021 mb, +20°C, hazy, cloudless.  
    08.00 CB 1832 After decrypting the Radio Messages 2126/31 came to northerly course, to head for the convoy route along the coast of Nova Scotia.  
      WSW 2, Sea 3, fog, Vis. changing, 1020.5 mb, +18°C  
    12.00 CB 1565 Course 315°.  
      SW 1, calm Sea, fog, Vis. under 100 meters, 1019 mb, +16°C Day's run:              152.2 nm  
                                       7.1  
                                       159.3 nm  
                        1 August   7438.8  
                         total:        7598.1 nm  
    16.00 CB 1519 During the thick fog and the mirror flat Sea stopped half-hourly to listen.  
      S 1, calm Sea, fog, Vis. under 100 meters, 1018.5 mb, +15°C  
    18.00 CB 1511 Radio Message Kr. Kr. 1635.2 from Vogelsang:  
        2 steamers, 1 destroyer, course 270°, 8 knots, square 3119.  
        Proceeded on plotted course 76° and LF to the intercept point with this target.  Additionally, it is expected that this course takes us to a fog-free area.  
    20.00 CB 1288    
      Wind calm, calm Sea, fog, Vis. 50-100 meters, light S-Swell, 1016.5 mb, +16°C    
    23.45 CB 1371 The now already familiar to the crew regular rising and falling whistle is now heard in the boat even with the naked ear for  
           
Sun and Moon Data 01.08.42
Sun and Moon Data 02.08.42
 
- 52 -
 
           
           
           
    continued      
    02.08.42   a while in dense fog while proceeding on the surface.  
                                             
    03.08.42 Southeast of Nova Scotia Search for the convoy reported by "U-Vogelsang"  
    00.00 CB 1371    
      SW 2, Sea 1, fog, Vis. 100 meters, 1015 mb, +18°C    
    04.00 CB 1367    
      Weather unchanged    
    08.00 CB 2151 After arriving at the plotted intercept point with the convoy back and forth in position with N and S courses.  
      W 1, Sea 1, fog, Vis. 400 meters, 1014 mb, +14°C  
    08.10 - 08.25   Dived to listen.  No results.  
    and      
    10.37 - 11.03      
    12.00 CB 2137 Day's run:              200.7 nm  
      SW 3, Sea 2, 2/10, fog, scattered clearing, 1014 mb, +18°C                                  1.6  
                                       202.3 nm  
                      2 August   7598.1  
                         total:        7800.4 nm  
        Proceeded on northerly course to the SE coast of Nova Scotia, to be under land at darkness until moon rise.  
    16.00 CB 2125    
      SSW 1, Sea 1, cloudless, Vis. very good, 1012.5 mb, +19.5°C    
    20.00 BB 7848    
      SW 1, Sea 1, thick fog, 1011 mb, +19.5°C    
    23.32 BB 7818 With sudden clearing crash dive for flying boat bearing 210°T, course NNW.  
                                             
    04.08.42 SE of Nova Scotia Ships position by running bearing from Lighthouse at Cape Le Have [West Ironbound island] and within 26 hours Crash dived for aircraft 7 times.  
    00.00 BB 7815    
      Submerged    
    00.58 BB 7815 Surfaced.  Course 315°.  
      SW 4, Sea 3, 3/10, Vis. very good    
           
           
Sun and Moon Data 02.08.42
Sun and Moon Data 03.08.42
Sun and Moon Data 04.08.42
 
- 53 -
 
           
           
           
    continued      
    04.08.42      
    01.05 - 02.34 BE 7815 While blowing another Crash dive for aircraft bearing 210°T.  
    03.26 BB 7812 In about 9°T center point of a large searchlight battery (14 searchlights).  Probable location Sambro Head.  
    05.03 BB 7574 Land bearing of the lighthouse on West Ironbound Island and Cross Island.  
      W 3, Sea 2, cloudless, summer lightening, Vis. very good, 1015 mb, +17.5°C  
    05.20 BB 7493 Course 135°.  
    08.00 BB 7812    
      WSW 2, Sea 1, cloudless, Vis. very good, bright moonshine, 1014 mb, +18°C    
    11.04 BB 7827 Still before sunrise Crash dive for aircraft bearing 15°T, easterly course.  
    12.00 BB 7852 Day's run:              157.8 nm  
                                         8.7  
                                         166.5 nm  
                        3 August   7800.4  
                         total:        7966.9 nm  
    17.25 BB 7856 Surfaced.  
      SW 3, Sea 2, 4/10, Vis. very good, 1017 mb, +17°C    
    18.10 - 19.56 BB 7859 Crash dive for aircraft bearing 120°T, westerly course.  
    21.36 - 23.39 BB 7859    
      Weather unchanged Crash dive for aircraft bearing 180°T, NW-course.  Again while submerged whistle with fluctuating volume.  Own course 290°.  
                                             
    05.08.42 SE of Nova Scotia Night patrol vessel and return transit after 61 sea days.  
    00.00 BB 7843    
      SW 3, Sea 2, 3/10, Vis. very good, 1015 mb, +17°C    
    00.16 - 01.32 BB 7843 Crash dive for aircraft bearing 240°T, W-course.  
    01.42 BB 7843 Crash dive for aircraft bearing 20°T.  SW-course  
      SW 2, Sea 1, cloudless, Vis. very good, 1015 mb, +17°C    
    05.03   Course 95°.  
           
           
Sun and Moon Data 04.08.42
Sun and Moon Data 05.08.42
 
- 54 -
 
           
           
           
    continued      
    05.08.42      
    06.07 BB 7818 A patrol vessel bearing 315°T.  Very difficult to make out in the very dark night.  Fishing trawler type.  Range about 7 nm.  Because he turned towards, ran off at 2 x HF and course 145°.  
    06.46   Radio Message from Lohmann:  Return transit naval square BB 7814.  43 cbm,  W 3, 1019 mb, +17°C, clear.  Am missing 31 July 257/8/60.  
    07.00 BB 7846 After the patrol vessel passed out of sight, despite the moonshine came to opposite course to meet him again.  
      WSW 4, Sea 3, 4/10, Vis. good, moonshine, 1015 mb, +17°C  
    08.17 BB 7817 Search broken off and set off from the coast on course 100° and began the return transit after a patrol lasting 61 days.  
      WSW 4, Sea 3, 3/10, bright moon, Vis. very good, 1015 mb, +17°C  
    12.00 BB 7853 Day's run:              126.3 nm  
      WSW 3, Sea 2, few clouds, Vis. very good, 1015.5 mb, +17°C                                24.6  
                                       150.9 nm  
                      4 August   7967.0  
                         total:        8117.9 nm  
    12.18 BB 7853 Crash dive for aircraft bearing 300°T, E-course.  Afterwards continued transit submerged due to heavy air surveillance.  
    17.30 BB 7867 2 heavy detonations in undetermined direction and range.  Distant sounds in GHG and faint whistling.  
    17.57 SW 5, Sea 4, 2/10, Vis. very good, +17°C Surfaced for midday latitude with the intention of proceeding on the surface only until the next Crash dive for aircraft.  
    18.39 BB 7893 Directly astern at about 3000 meters the impact of 2 aircraft bombs is observed.  Aircraft was recognized later.  Detonation was heard in the boat and felt by concussions.  
        Crash dive.  
        At the same moment the known whistle with fluctuating volume is heard.  
    20.00 BB 7896    
                                             
    06.08.42 South of Sable Island On return transit 120 nm from land Crash dive for aircraft 4 times.  
    00.00 BB 7974    
      Submerged    
    02.44 BB 7975 Surfaced, course 90°.  
    03.46 BB 7976 Crash dive for aircraft, that was recognized by set navigation lights.  
      W 5, Sea 4, cloudless, Vis. very good, 1018 mb, +15.5°C  
      It circles at an altitude of 300 meters then course for the boat.  
           
           
Sun and Moon Data 05.08.42
Sun and Moon Data 06.08.42
 
- 55 -
 
           
           
           
    continued      
    06.08.42      
    04.00   Clear, loud sound bearings from two or more vessels (50, 70-80 RPM).  Bearing stays to the last in 140°T.  At times whipping sounds as from Electrolot.  The volume fluctuates strongly with the depth changes of the boat.  
    05.31 BB 7976 Surfaced and pursued the sound bearing in 140°T.  Could not run at high speed settings due to concern over fuel inventory.  
      WSW 4, Sea 2, 3/10, Vis. very good, 1021 mb, +17°C  
    07.00 BB 7981 Pursuit of sound bearing was abandoned.  Course 85°.  
    12.00 BB 7999 Day's run:               64.0 nm  
      W 3, Sea 2, 8/10, Vis. good, 1021.5 mb, +18°C                                34.1  
                                       98.1 nm  
                      5 August   8117.9  
                        total:        8216.0 nm  
    12.11 - 13.45 BB 8777 Crash dive for aircraft bearing 45°T, SE-course.  
    15.43 - 17.42 BB 8779 Crash dive for aircraft bearing 210°T, NE-course.  
      Weather unchanged    
    20.00 BB 8789    
      WSW 3, Sea 2, 8/10, Vis. very good, +21.5°C    
    23.54 BB 8796 Crash dive for aircraft bearing 175°T, NW-course.  
                                             
    07.08.42 South of Sable Island Beginning of return transit on the Great Circle.  
    00.00 BB 8874    
      Submerged    
    02.50 BB 8874 Surfaced. Course 85°.  
      W 1, Sea 1, overcast, drizzle, 1023 mb, +17°C    
    08.00 BB 8891 Heading to objective point for Brest on the Great Circle.  
      NE 4, Sea 3, rain, marine phosphorescence, overcast, 1020 mb, +20°C    
    12.00 BB 8947 Day's run:              134.4 nm  
      NE 6, Sea 5, overcast, rain, 1017 mb, +18°C                                14.4  
                                       148.8 nm  
                      6 August   8216.0  
                        total:        8364.8 nm  
    16.00 BB 8954    
      NE 9, Sea 5, overcast, rain, Vis. bad, 1010 mb, +17°C    
    20.00 BB 8937    
      NE 7, Sea 7, overcast, Vis. good, 1016 mb, +18°C                                      
           
Sun and Moon Data 06.08.42
Sun and Moon Data 07.08.42
 
- 56 -
 
           
           
           
           
    08.08.42 South of Newfoundland Return transit to the French West Coast.  
    00.00 BB 8936    
      N 7, Sea 6, at times Vis. bad, rain, 8/10, 1021 mb, +18°C    
    00.42   Requested to give weather report by Radio Message 2148/7/275.  
    03.04   Sent Short Signal weather report.  
    04.00 BB 9712    
      N 4, Sea 4, 6/10, 1025 mb, +17.5°C, high NE-Swell    
    08.00 BB 9485    
      N 4, Sea 3, 7/10, high NE-Swell, 1028.5 mb, +16°C    
    12.00 BB 9491 Day's run:             122.0 nm  
      WSW 2, Sea 1, 2/10, long NE-Swell, 1029 mb, +16°C                                8364.8  
                                     8486.8 nm  
    12.20 - 13.52 BB 9492 Crash dive for aircraft bearing 45°T, W-course.  
    14.24 BB 9492 Aircraft bearing 330°T, W-course, was unnoticed.  
    16.00 BB 9547    
      W 1, Sea 1, 2/10, long high NE-Swell, Vis. very good, 1022 mb, +23°C    
    20.00 BB 9552    
      W 1, Sea 1, 7/10, Vis. very good, 1031 mb, +19°C    
    23.56 BB 9536 Weather report requested by Radio Message 2229/8/221.  
                                             
    09.08.42 South of Newfoundland Return transit on the Great Circle across the Newfoundland Bank.  
    00.00 BB 9536 All wave receiver out of service.  
      SW 1, Sea 1, 3/10, low NE-Swell, Vis. very good, 1033 mb, +19°C    
    02.18 BB 9612 Sent Short Signal weather report.  
    04.00 BB 9624    
      SW 1, Sea 1, light NE-Swell, cloudless, Vis. very good, 1034 mb, +17°C    
           
           
Sun and Moon Data 08.08.42
Sun and Moon Data 09.08.42
 
- 57 -
 
           
           
           
    continued      
    09.08.42      
    08.00 BB 9399    
      Wind calm, calm Sea, fog, Vis. 300 meters, 1034 mb, +17.5°C    
    12.00 BC 7173 Day's run:              152.2 nm  
      W 2, Sea 1, fog, drizzle, Vis. bad, 1035 mb, +16.5°C                                  4.6  
                                       156.8 nm  
                      8 August   8486.8  
                        total:        8643.6 nm  
    16.00 BC 7166    
      SW 1, Sea 1, overcast, Vis. good, 1038 mb, +17°C    
    18.00   Sounded lowest depth, 66 meters, on transit over the Newfoundland Bank.  
    20.00 BC 7234    
      Wind confused, Sea 1, hazy, Vis. bad, 1038 mb, +16°C    
                                             
    10.08.42 Central Atlantic Crossed the 200-meter line leaving the Newfoundland Bank.  
    00.00 BC 4979    
      SW 2, Sea 1, overcast, fog, 1038 mb, +15°C    
    04.00 BC 4991    
      SW 2, Sea 1, fog, drizzle, light N-Swell, 1039 mb, +11°C    
    08.00 BC 5758    
      Wind calm, calm Sea, drizzle, 1039 mb, +12°C    
    12.00 BC 5753 Day's run:             210.0 nm  
      WSW 2, Sea 1, overcast, Vis. good, 1039 mb, +13°C      9 August             8643.6  
                                     8853.6 nm  
    16.00 BC 5739    
      SW 2, Sea 1, overcast, Vis. good, 1039 mb, +16°C    
    20.00 BC 5823    
      SW 2, Sea 1, overcast, Vis. very good, 1039 mb, +16°C    
    20.52   Weather report requested by Radio Message 1955/10/295.  
                                             
           
           
Sun and Moon Data 09.08.42
Sun and Moon Data 10.08.42
 
- 58 -
 
           
           
           
           
    11.08.42 Central Atlantic On return transit east of the Newfoundland Bank.  
    00.00 BC 5671    
      S 2, Sea 1, overcast, Vis. very good, 1038 mb, +16°C    
    02.15   Sent Short Signal weather report.  
    04.00 BC 5685    
      Wind calm, calm Sea, overcast, Vis. good, 1038 mb, +16°C    
    08.00 BC 5692    
      Cloudless, otherwise unchanged    
    12.00 BC 6476 Day's run:             182.5 nm  
      SE 2, Sea 1, 3/10, Vis. very good, 1037 mb, +19°C        10 August        8853.6  
                                     9035.1 nm  
    16.00 BC 6468    
      SSW 3, Sea 2, 4/10, Vis. very good    
    20.00 BC 6543    
      SSW 3, Sea 2, 6/10, Vis. good, 1035.5 mb, +18°C    
    22.34   Weather report requested by Radio Message 2209/11.  
                                             
    12.08.42 Central Atlantic    
    00.00 BC 6536    
      S 4, Sea 3, rain, overcast, 1029 mb, +19°C    
    00.32 - 01.03   Test dive.  
    04.00 BC 6624    
      S 4, Sea 3, rain, strong marine phosphorescence, 1033 mb, +16°C    
    05.45   Weather report sent.  
    08.00 BC 6633    
      S 3, Sea 3, overcast, drizzle, 1032 mb, +18.5C    
    12.00 BD 4186 Day's run:              178.0 nm  
      S 3, Sea 2, overcast, rain, 1031 mb, +19°C                                  1.5  
                                       179.5 nm  
                    11 August    9036.1  
                        total:        9215.6 nm  
    16.00 BD 4274    
      SW 4, Sea 3, drizzle, 1032 mb, +19.5    
    20.00 BD 4259    
      SW 4, Sea 3, rain, 1030 mb, +18°C                                      
           
Sun and Moon Data 11.08.42
Sun and Moon Data 12.08.42
 
- 59 -
 
           
           
           
           
    13.08.42 Central Atlantic    
    00.00 BD 4347    
      S 4, Sea 3, rain, 1029 mb, +19°C    
    04.00 SW 4, Sea 3, overcast, rain, 1028.5 mb, +19°C    
    08.00 BD 4363    
      SW 3, Sea 2, overcast, dust rain, 1026 mb, +18.5°C    
    12.00 BD 5143 Day's run:             164.0 nm  
      SW 4, Sea 3, overcast, Vis. bad, 1025 mb, +19°C        12 August         9215.6  
                                     9379.6 nm  
    16.00 BD 5152    
      W 4, Sea 3, overcast, Vis. bad, 1025 mb, +19°C    
    20.00 BD 5163    
      SW 3, Sea 2, overcast, at times fog, 1024 mb, +20°C                                      
         
    14.08.42 Central Atlantic    
    00.00 BD 5227    
      WSW 4, Sea 3, overcast, Vis. changing, 1023 mb, +20°C    
    00.22 - 00.45   Test dive.  
    04.00 BD 5235    
      Weather unchanged, 1022 mb, +18°C    
    08.00 BD 5316    
      SW 3, Sea 3, drizzle, 1019 mb, +17.5°C    
    12.00 BD 5335 Day's run:              161.7 nm  
      W 4, Sea 3, drizzle, 1019 mb, +19°C                                  1.0  
                                       162.7 nm  
                    13 August    9379.6  
                        total:        9542.3 nm  
    16.00 BD 6112    
      W 4, Sea 3, 8/10, Vis. good, 1021 mb, +20°C    
    20.00 BC 6132    
                                             
           
Sun and Moon Data 13.08.42
Sun and Moon Data 14.08.42
 
- 60 -
 
           
           
           
           
    15.08.42 Central Atlantic    
    00.00 BD 6213    
      NW 3, Sea 2, 8/10, Vis. good, 1020 mb, +17.5°C    
    04.00 BD 6231    
      N 3, Sea 3, 6/10, Vis. changing, 1024 mb, +17°C    
    08.00 BD 6313    
      NNW 3, Sea 2, 5/10, 1026 mb, +17°C    
    12.00 BD 3997 Day's run:              168.0 nm  
      NW 4, Sea 3, 9/10, Vis. good, 1029 mb, +17°C                                9542.3  
                                     9710.3 nm  
    16.00 BE 1777    
      NW 4, Sea 4, 4/10, Vis. good, 1031.5 mb, +18°C    
    20.00 BE 1787    
      NNW 2, Sea 2, 4/10, high NW-Swell, 1032 mb, +18°C    
                                             
    16.08.42 Central Atlantic Meeting with convoy.  
    00.00 - 00.21 BE 1798 Test dive.  
      N 2, Sea 1, 3/10, high NW-Swell, 1035 mb, +18°C    
    04.00 BE 1878    
      WSW 2, Sea 1, 2/10, Vis. changing, 1035 mb, +14.5°C    
    08.05 BE 1897 At morning twilight a red star shell or rocket bearing 70°T.  
      WSW 2, Sea 2, overcast, medium-high NW-Swell, 1034 mb, +17.5°C    
    08.43   8 smoke traces bearing 64°T.  
    08.48   Destroyer mast bearing 57°T, growing fast. Attempt to move off on the surface, must be abandoned due to lack of fuel.  Dived and went to periscope depth.  Nothing seen or heard.  
    09.49   Radio Signal with rod antenna:  
        Several smoke clouds in sight, square BE 1895.    U-89.  
    10.04 BE 4231 Surfaced and steered search course to exactly detect the convoy.  
    10.18   Mastheads in 141°T, the larger was then recognized as a destroyer target angle 0°.  
           
Sun and Moon Data 15.08.42
Sun and Moon Data 16.08.42
 
- 61 -
 
           
           
           
    continued      
    16.08.42      
    10.23 BE 4231 Crash dive.  At periscope depth neither sighting nor sound bearing.  
      SW 4, medium-high NW-Swell, Sea 3, 4/10, Vis. good, 1034 mb, +18.5°C  
    11.31   Surfaced.  Pursued on course 140°.  
    12.00 BE 4234 Day's run:              124.6 nm  
                                         8.5  
                                         133.1 nm  
                    15 August    9710.3  
                        total:        9843.4 nm  
    12.20   Patrol vessel mast bearing 265°T.  
        From the experience of the first two encounters attempted to move off on the surface.  Patrol vessel comes appreciably closer.  
    12.26 BE 4234 Crash dive.  Recognized at periscope depth as a corvette.  Small target angle and corresponding slight shift determined, up to 284°T.  
    12.48   Boat is ready to attack, when all around sweep shows a destroyer at about 2500 meters bearing 249.5°T and target angle 2-5 approaching quickly.  Depth control is very difficult due to Sea State and Swell.  Quickly to depth A +50 meters.  Silent running.  
    12.52   With increasing depths the listening conditions, which up to now in Sea 4 were unsatisfactory, were better.  In 165°T in the GHG a noise was heard that probably originates from the convoy steering a southerly course.  The distant corvette cannot be heard.  The sound bearing from the destroyer shifts from 265 to 310°T with changing volume and frequent stopping and starting (depth sounding impulses).  
    13.16   Last sound bearing.  
    13.22 - 14.15   On going higher in irregular, larger time intervals a total of 9 bright, quite sharp however harmless detonations in indeterminable distance.  The type of detonation was unknown to now.  They were initiated by a peculiar metallic percussion, which seems to hit the boat at the bottom and did not cause excessive concussion.  This "percussion" was followed by the actual detonation, which disappeared in an undulating ebbing bright noise.  
    15.20   Boat went to depth A -5 meters.  
        1 detonation at medium range.  
           
           
Sun and Moon Data 16.08.42
 
- 62 -
 
           
           
           
    continued      
    16.08.42      
    15.27   1 detonation at medium range.  
    15.43   2         "         "      "         "  
    16.02   1         "         "      "         "  
        Two emerging sound bearings with Asdic impulses, stopping and starting.  The first shifts ahead to starboard, the other ahead to port, suspect easterly course.  
    17.10   Nothing more is heard.  
    20.00   2 detonations at great range.  
    20.31   Surfaced - 5 minutes after surfacing  
    20.36   Crash dive for aircraft in approach at higher altitude bearing 270°T.  
    20.37   At depth A -70 meter 1 or 2 well-placed aircraft bombs.  
        Air intake head valve leaks.  
        Vacuum piping of both batteries torn at the level of the battery deck.  
        Clutch shaft between limit switch and rudder position indicator transmitter for the forward diving plane is broken.  
        Additionally glass damage in the boat and damage to the over deck.  
        Gyro compass off by 5°.  
                                             
    17.08.42 Central Atlantic Heading for the French West Coast.  
    00.00 BE 1899    
      SW 5, Sea 4, 6/10, high NW-Swell, Vis. medium, 1034 mb, +17.5°C    
    00.08 Surfaced.  
    01.38   Radio Message 0006/17 sent:  From Lohmann:  
        Forced to submerge 4 times by sea and air.  Square BE 4232.  Convoy course south questionable, 8 smoke clouds.  No contact since 10.30 hours.  SW 5, 1034 mb, +18°C.  
    04.00 BE 1987    
      Weather unchanged    
    05.55   Weather report requested by Radio Message 2056/16.  
        Satisfied by radio message at 01.38 hours.  
    08.00 BE 2777    
      SW 4, Sea 3, overcast, rain, 1030 mb, +17.5°C, Vis. good    
           
           
           
Sun and Moon Data 16.08.42
Sun and Moon Data 17.08.42
 
- 63 -
 
           
           
           
    continued      
    17.08.42      
    12.00 BE 2788 Day's run:              97.4 nm  
      S 4, Sea 3, overcast, high NW-Swell, 1031 mb, +18°C                                 27.5  
                                       124.9 nm  
                    16 August    9843.4  
                        total:        9968.3 nm  
    16.00 BE 2799    
      SSW 6, Sea 4, overcast, Vis. medium, 1029 mb, +19°C    
    20.00 BE 2879 Weather report requested by Radio Message 1939/17/105.  
      SSW 5, Sea 4, overcast, 1026 mb, +19°C    
                                             
    18.08.42 Eastern Atlantic Heading for the French West Coast.  
    00.00 BE 2997    
      SSW 5, Sea 4, overcast, rain, 1028 mb, +19°C    
    02.17   Sent Short Signal weather report.  
    04.00 BE 2978    
      SSW 7, Sea 5, overcast, rain, 1025 mb, +19°C    
    08.00 BE 5526    
      SSW 5, Sea 4, overcast, Vis. good, 1024 mb, +19.5°C [12.00 position is incorrect is more like BE 6152]  
    12.00 BE 5539 Day's run:              164.0 nm  
      SSW 5, Sea 4, overcast, Vis. bad, 1022 mb, +20°C                                9968.3  
                                    10132.3 nm  
    13.32 - 15.32 BE 6118 Crash dive for aircraft in cloud haze bearing 170°T.  
    16.00 BE 6127    
      NW 5, Sea 4, 5/10, Vis. good, 1023 mb, +18.5°C    
    20.00 BE 6132    
      NW 5, Sea 4, 3/10, Vis. very good, SW-Swell, 1025 mb, +19°C    
                                             
    19.08.42 Bay of Biscay    
    00.00 BE 6261    
      WNW 5, Sea 4, 5/10, Vis. very good, 1027 mb, +19°C    
    04.00 BE 6349    
           
           
Sun and Moon Data 17.08.42
Sun and Moon Data 18.08.42
Sun and Moon Data 19.08.42
 
- 64 -
 
           
           
           
    continued      
    19.08.42      
      SW 4, Sea 4, 9/10, Vis. good, 1028 mb, +18°C    
    07.23 BE 6393 Dived to proceed submerged.  
    12.00 BF 4177 Day's run:              167.2 nm  
                                        20.1  
                                         187.3 nm  
                    18 August    10132.3  
                        total:        10319.6 nm  
    15.40   5 distant detonations.  
    17.30 BF 4179 Surfaced.  
      WSW 4, Sea 3, high W-Swell, 4/10, 1029 mb, +19°C    
    22.40 BF 4514 Dived to proceed submerged.  
                                             
    20.08.42 Bay of Biscay    
    00.00 BF 4514 Proceeding submerged.  
    01.37   Short Signal with rod antenna:  Position 36 hours before arrival.        U-89.  (outside the zero-beat gap)  
    03.07 BF 4518 Surfaced.  
      W 4, Sea 3, 8/10, 1031 mb, +18°C    
    06.00   [outgoing] Radio Message 0600/20:  Friday 13.00 hours escort for Lohmann.  
        Sent once more because Short Signal conformation was still not received.  
    07.06 BF 4539 Crash dive for aircraft bearing 260°T.  
    09.20   5 detonations at medium range.  
    12.00 BF 4651 Day's run:              141.5 nm  
                                        20.0  
                                         161.5 nm  
                    19 August    10319.6  
                        total:        10481.1 nm  
    13.20 BF 4651 Surfaced.  2 sailing fishing vessels in visual range.  
    13.45   Crash dive for aircraft bearing 280°T.  Sailing vessels observed in the periscope and avoided.  
        No markings on the sails.  
    18.54 BF 4653 Surfaced.  
    18.55   Crash dive for aircraft bearing 15°T, southerly course.  
    19.57 BF 4653 Surfaced.  
           
Sun and Moon Data 19.08.42
Sun and Moon Data 20.08.42
 
- 65 -
 
           
           
           
    continued      
    20.08.42      
      SW 3, Sea 2, high NW-Swell, Vis. very good, 1034 mb, +19°C During the continued surface transit very many sailing fishing vessels.  
    20.49 BF 4664 Crash dive for aircraft bearing 175°T, northerly course.  
    21.54   During all around sweep periscope is shot at by machine gun.  
    23.20 BF 4665 Surfaced.  
      SW 2, Sea 2, medium-high NW-Swell, Vis. very good, bright moonshine, 1034 mb, +18°C                                      
         
    21.08.42 Entered Brest    
    00.00 BF 4665    
    01.30 BF 4666 Crash dive for aircraft.  
    03.33 BF 5444 Surfaced.  
      S 4, Sea 3, high NW-Swell, 1037 mb, +19°C, Vis. good, marine phosphorescence    
    05.20   Transit on Zwangs Route for Brest.  
    08.00 S 3, Sea 3, 8/10, 1037 mb, +19C    
    12.00 SW 5, Sea 4, overcast, rain, Vis. bad, 1030 mb, +18°C Day's run:              162.0 nm  
                                      39.3  
                                         201.3 nm  
                    20 August    10481.1  
                        total:        10682.4 nm  
    13.17   Ar Men East Buoy abeam  
        No escort seen.  
        Positioned back and forth between Ar Men East buoy and convoy meeting point.  
    14.38   Short Signal:  Located at ordered meeting point.    U-89.  
    16.15 SW 2, Sea 1, light W-Swell, Vis. bad, 1035 mb, +19°C Short Signal:  Proceeding to Brest.        U-89.  
      Continued independent transit to Brest.  
    17.00   Escort met between Point 31 and B 1.  After 77 day long patrol.  
    19.28   Made fast Brest Bunker 13.  
        Distance:                75.0 nm  
                                     10682.4  
                                     10757.4 nm  
                                             
           
Sun and Moon Data 20.08.42
Sun and Moon Data 21.08.42

Enclosures to U-89's KTB - click on the text at left to proceed to the document
ChartA Track chart covering transit to and from operations area
 
ChartB Track chart covering period in operations area 6-10 July 1942
   
Radio Excerpt of the Radio Log

     
     
 

                          Commentary of the Befehlshabers der Unterseeboote

 
                            on the Kriegstagebuch of "U 89" from 28.5. to 21.8.1942  
 

 

 
 
First patrol of the boat after the transfer patrol.
1) When operating on the Gibraltar convoy, the boat allowed itself to be seen and thus destroyed its attack opportunity.
2) It is not correct to cling too much on results of the listening device to clarify [the situation].  As soon as possible to come up and look.  The listening device invites passive action.
3) In operations area off New York the Kommandant should have tried to intercept day traffic after there was sufficient certainty concerning the stopping of night traffic.
  The tenacity of the Kommandant in the operational area is appreciated.
  Otherwise nothing to note.
 
     
   

Signed in draft: D  ö  n  i  t  z  .

 
          For correctness:  
            
          Leutnant M.A. and Adjutant  
     
     
 


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