U-57 - 10th War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed
Date
Arrived
Date
Days at Sea
Bergen
22 July 1940
Lorient
7 August 1940
17

 

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
17 Jul 40
04.10
59°29'N, 3°22'W
O.A. BRODIN
1,960
Swedish
17 Jul 40
22.22
59°29'N, 3°22'W
MANIPUR
8,652
British
HX-55A
3 Aug 40
08.07-08.10
55°59'N, 7°23'W
ATOS
2,161
Swedish
     
 Total = 12,773
   
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-57 "
 
           
           
           
                       Kommandant:                Oblt. z. S.  T  o  p  p.  
           
                         
           
           
     
Beginning:  07.07.1940  
Ending    :   31.08.1940
 
         
           
           
           
           
           
           
           
           
           
           
           
        © U-boat Archive 2024 - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 1 -
 
           
           
           
           
    07.07.40   Returned from MEMEL.  
    13.10   Made fast Deutsche Werke for the completion of the shipyard period  
        Repair of the cooling water manifold, exhaust gas manifold piping, transformer for the G.H.G.  
    08.07.40   Deutsche Werke final adjustments and overhaul.  
    09.07.40   Deutsche Werke final adjustments and overhaul.  
    10.07.40      
    11.20   Departed Deutsche Werke.  Sea trials.  
    15.30   Alongside MEMEL for torpedo loading.  
    19.00   Made fast Tirpitz Mole.  
                                         
    11.07.40      
    18.00   Ready for sea.  
    18.40 -      
    18.55   Holtenau Lock  
        Canal transit, Day's run :  45 nm.  
                                         
    12.07.40      
    00.15-02.00   Aircraft Alarm.  
    03.20-03.45   Aircraft Alarm.  
    04.55-05.12   Brunsbüttel Locks.  
    05.40   Proceeding in mine convoy, Sperrbrecher "SPD".  
    08.10   Passed Cuxhaven .  
    08.15   Passed Cuxhaven minefield.  
    08.42 WNW 3-5, medium level overcast, Sea 3-4, occasional heavy rain squalls Passed Lightship K.  
    09.30 Passed Lightship H.  
    11.30   Released from mine convoy at Point A.  
    13.15   German aircraft, HE-111 sighted.  
    16.00 Passed Point H Proceeding on Route Blau.  
      WNW 3-4, 10-8/10, Sea 2-3, occasional bright sunlight.    
    19.30   Flashing light exchanged with Vorpostenboot.  
    20.00   Day's run:  1.2 nm  
                        170 nm.  
                                         
           
           
Sun and Moon Data 12.07.40
 
- 2 -
 
           
           
           
           
    13.07.40      
    00.00 AN 6658    
      WNW 4-5, 5/10, Sea 3-4    
    04.00 AN 6368    
      Same as above    
    04.30   Route Blau X completed.  
    08.00 AN 6322    
    12.00 AN 3759    
      W 4, obscured/mist, Sea 3    
    16.00 AN 3716    
      WNW 3, obscured/mist, Sea 2-3    
    20.00 AN 4693 Day's run:    22 nm  
      WNW 3, obscured/mist, rain squalls, Sea 2-3                 207 nm.  
    21.30-22.50 Fog    
                                         
    14.07.40      
    00.00 AN 4329    
      NNW 2, obscured/mist, Sea 1    
    04.00 AN 4359    
      N 3, 7/10, Sea 2    
    08.00 AN 4323 Radio Message to B.d.U.  
    09.00   Will arrive Börnestangen 24.00 hours.  
    12.00 AN 2853    
      High long swells    
    16.00 AN 2839    
      N 2-3, 3/10, Sea 1-2    
    20.00 AN 2487    
      Coastal fog    
    20.30   Marstein Lighthouse in sight.  
    21.15 -   Dived in Korsfjord.  
    22.58      
    23.25   In convoy with Börnestangen steamer "ARCTURAS".  
        Day's run:      1 nm  
                        198 nm.  
                                         
    15.07.40      
    00.00 Korsfjord    
      N 3, 7/10, Sea 1    
    01.25   Released from convoy.  
    01.42 Bergen Made fast alongside "ANITAS".  Reported to Seekommandant Bergen Kpt. z.S. Ruhfuhs [typo Ruhfus].  Received fuel oil and lubricating oil from ANITAS.  Sent departure message to B.d.U. to arrange routing from Bergen.  
           
           
Sun and Moon Data 13.07.40
Sun and Moon Data 14.07.40
Sun and Moon Data 15.07.40
 
- 3 -
 
           
           
           
    continued      
    15.07.40      
    16.00 Bergen Ready for sea.  
        From "ARCTURUS" with Börnestangen convoy.  
    19.26 Passed Marstein Course 264°.  
      NW 3, 4/10, Sea 1-2    
    20.00 AN 2476 1.  Bubble track 5 - 10 meters aft of the stern.  Turned away from shooting location.  
        2.  Bubble track to starboard parallel.  Torpedo could be seen about 2 meters below the surface.  
    20.05   Crash dive!  
        U-boat heard.  Turned away.  Intention:  Remain nearby. Surface with darkness to attack.  Bearing 330° sounds lost.  
    Summer Time   [Mitteleuropäische Sommerzeit/Central European Summer Time - GMT +2]  
    00.30   Switched to M.G.Z.  
    M.G.Z.   [Mittlere Greenwich-Zeit/Greenwich Mean Time - GMT]  
    22.30   Surfaced.  Transit to Fair Passage continued.  
        Radio Message to B.d.U. from U-57  
        Naval square 2476 lower-left attacked with 2 torpedoes from a submerged U-boat.  
        Day's run:  4.5 nm  
                        151 nm.  
                                         
    16.07.40      
    00.00 AN 2474    
      SW 2, 9/10, Sea 1, rain squalls, Vis. poor    
    01.24 AN 2398 upper-center A large English submarine appears suddenly from a rain squall at 800 meters.  Crash dive!  In the G.H.G. nothing heard, G.H.G. is practically unusable after Department 8 of the K.M.W. Kiel worked on the device for 2 months at the constant urging of the command.  
    02.35 AN 2398 upper-left Surfaced, ran off to the south at high speed.  
    03.35   Transit to the west continued.  
    04.00 AN 2834    
      SW 2, 9/10, Sea 1, somewhat misty    
    08.00 AN 2814    
      SW 1, 8/10, Sea 0    
    12.00 AN 2727    
    16.00 AN 2637    
      W 2, 10/10, Sea 1, misty    
    20.00 AN 1463    
      SSE 2, obscured/mist, Sea 1    
    20.30   Fair Island faintly visible to port.  
    22.00   Radio Message from B.d.U. to U-57  
           
           
Sun and Moon Data 15.07.40
Sun and Moon Data 16.07.40
 
- 4 -
 
           
           
           
    continued      
    16.07.40      
        Own D-18 aircraft made a forced landing at about 20.00 in AN 4282 .  Needs help.  Report by short signal, if current location is within 100 nm of scene of the accident.  In this case look.  Otherwise short signal "nein".  
        Distance to scene of the accident 150 nm.  Decision: continue transit.  No short signal.  
    24.00 AN 1446 Day's run:  1.3 nm  
      S 1-2, obscured/mist, Sea 1                 180 nm.  
                                         
    17.07.40      
    01.50 AN 1444 Dived for armed patrol steamer.  
    02.13   Surfaced.  
    03.23 AN 1368 Steamer in sight.  Closed submerged at GF.  Steamer has apparently stopped.  From 500 meters range shot a G7e depth 2 meters.  Torpedo ran 100 meters on the surface.  Steamer starts slowly.  Torpedo passes astern.  2 torpedoes shot with depth 3 meters, target speed 8 knots, range 405 meters.  Detonation after 27 seconds.  Boiler hit, steamer "ANITA" Brodin Shipping Company, Sweden with oil barrels and deck load mine timber aboard.  Takes a heavy list, sinks slowly deeper by the bow and disappears after about 45 min.  
        After shot ran off after 30 minutes surfaced.  Transit continued.  
    07.50   Radio Message to U-57 from B.d.U.  
    08.00 AN 1521 Report position by Short Signal.  
      E 2, obscured/mist, Sea 1, very misty.    
    08.30   Radio Message from U-57 to B.d.U. (Short Signal)  
        Position between Shetlands and Herbrides.  
    09.05 Heavy fog Proceeding submerged to load two torpedoes.  
    11.31   Surfaced.  
    12.00 AN 1527 Dived for safety.  
      NNE 2, obscured/mist, Sea 1-2, very misty, thick fog.    
    16.00 AN 1518 Because up to now there is still no confirmation,  
    16.22 NE 4, obscured/mist, Sea 2-3, rain Radio Message sent again.  
    19.26 U-57 from B.d.U.  
        Radio Message position signal between Shetlands and Herbrides confirmed.  
    20.00 AN 3662    
      NE 4, obscured/mist, Sea 3-4, rain    
    20.20   Bearing 270°T several large vessels come  
           
           
           
Sun and Moon Data 16.07.40
Sun and Moon Data 17.07.40
 
- 5 -
 
           
           
           
    continued      
    17.07.40      
   

 

20.50

  into view.  Target angle 60-80°, course from the west entrance to the Minch.  Pursued at AK, steaming parallel course, steamer target angle is already 80-90°.  Steamer group at target angle 30°.  Continuing to try to get ahead, then attempt to approach closer submerged at high speed (2 x 10 minutes at GF).  
        In the meantime determined:  15-20 large steamers protected by several destroyers. (a sweeper ahead).  
        The course leads in the direction of the Orkney's.  Believe that the convoy will go by the Pentland Firth.  Inexplicably he zigzags to port in the direction of Fair Passage. As a result I reach a distance of 1500 meters abeam.  Because of darkness and bad visibility I can only make out 3-4 vessels as shadows.  Out maneuvered 2 destroyers using Asdic.  At GF intend a double shot on the fattest steamer.  Time interval between tubes and shooting a little bit longer than usual.  Boat cuts under momentarily at GF to over 20 meters. Slowly turns with.  As boat reaches periscope depth, target angle is 120-140°.  Another steamer comes in sight.  Too small.  Waited for the final two ships.  Double shot on a 9000-ton steamer.  
    22.30   1. Detonation after 27 seconds.  
        2.         "        after 30 seconds.  
        Hit forward of the bridge and in the stern.  A big streak of flame, heavy cloud of smoke, after 30 seconds there is nothing more to see of the steamer.  The detonation was so powerful that the conning tower hatch raised for a few seconds.  
        Afterwards the boat is caught, turned towards the last steamer and shot at 800 meters.  Missed.  Dove before an approaching destroyer to 50 meters in 60-meters water depth and ran off on changing courses from north to west.  Boat is constantly in the Asdic pinging in spite of large course, speed, and depth changes.  
        Because the G.H.G. is inoperable from the start of the patrol, despite absolutely no exposure to rough sea, depth or detonations, there is no sense of the position of the destroyers and the progress of the pursuit.  
        Because of that, decision!  Go to periscope depth despite continuous pinging.  
        See two destroyers at 300 - 400 meters bow on to me, one in wake, the other ship bearing 240° approaching me slowly.  Destroyers pass flashing signals to each other.  
        Again to 50 meters.  Both E-motors HF, because destroyers also start (heard clearly in the conning tower) twice changing of course by 90°, in the boat everything is turned off.  A big ship passes over us.  Take the opportunity to go to GF.  Afterwards no further Asdic pinging.  
        Ran off on westerly course.  
        Day's run:    14.6 nm  
                        156.7 nm.  
           
           
Sun and Moon Data 17.07.40
 
- 6 -
 
           
           
           
           
    18.07.40      
    00.30 AM 3662 Surfaced.  Against the somewhat bright east sky at range 2000-3000 meters 2 destroyers and steam trawlers search, grouped around a big steam trawler with set navigation lights.  Now and again red stars are shot.  Ran off at AK.  
      NE 3-4, 10/10, Sea 2-3, rain squalls, Vis. 3000-4000 meters  
     

Firm assumption: according to a Radio Message at 20.13 hours the English located a U-boat in this area.  The boat [U-57] was sighted at this time, escort vessels were in full silhouette although difficult to make out.  The boat drove at AK with a wide silhouette against the bright horizon.  From the outset, accepted the possibility of being sighted for the advantage of getting in to a reasonable attack position at all.  The formation had to expect a U-boat.  So the escorts were tied to the formation.  The convoy itself was too ponderous and navigationally bound, to react to a single U-boat by more than a sharp alteration of course.  This assumption was confirmed.  As search group is now out of sight, came to northerly course, avoided several fishing vessels.  Delayed sending a Radio Message.  Distant depth charge detonations are heard.

 
    04.00 AM 3631    
      NE 3-4, 10/10, Sea 2-3    
    05.07   Smoke clouds, later a steamer with 2 masts in sight.  Was out maneuvered.  The steamer altered course sharply.  
    05.30   With the evasion North Rona is in sight bearing 260°T, 15 nm range.  
    08.00 AM 3496    
      NE 4-5, obscured/mist, Sea 4 nm, rain squalls    
    08.21   Radio message to B.d.U.  
    08.35   Large steamer sunk from a protected convoy with a double shot, miss on second steamer, AM 3662.  Earlier an independent steamer was sunk.  No torpedoes remain.  Return transit to Bergen begun. G.H.G. out of service.  Position square AN 1371.  
    10.00   Crash dive!  Aircraft abeam to port 3000 meters.  Altitude 800 meters, course SE.  
    10.24   Surfaced.  
    11.30-40   Drove past area of floating mine timber from the steamer sunk during the previous day.  
    12.00 AN 1382    
      NE 4-5, Sea 4, Vis. moderate    
    12.14   Avoided a patrol vessel on NW course.  
           
Sun and Moon Data 18.07.40
 
- 7 -
 
           
           
           
    continued      
    18.07.40      
    13.00   Avoided two large fishing trawlers and a steamer on course 80°.  
    14.39   Crash dive!  Aircraft abeam to starboard 2000 meters, altitude 800 meters on SE course.  Type:  Bristol Blenheim.  
    14.51   Surfaced.  
    15.10   Avoided patrol vessel on NNE course.  
    16.00 AN 1368 Transit to Bergen.  
      NE 5-6, obscured/mist, Sea 4-5, Vis. poor    
    20.00 AN 1451 Radio Message to U-57 from B.d.U.:  
      NE 5, obscured/mist, rain Good job, carry on.  
    24.00 AN 1439 Day's run:  Submerged 14.6 nm  Surfaced 156.7 nm.  
      Rain    
                                         
    19.07/40      
    04.00 AN 2626 Transit to Bergen.  
      ENE 3-4, 9/10, Sea 2-3    
    08.00 AN 2715    
      NNE 3, 10/10, Sea 2      "      "      "  
    09.00   Radio Message to U-57 from B.d.U.:  
        Arrival scheduled 20 July at 22.00 hours Summer Time at Börnestangen.  Send Short Signal "nein" if boat will arrive one day later.   
        To inform B.d.U. of the my location and the fact that entrance to Bergen only necessary if torpedoes are available there.  
    09.30   Radio Message sent:  
        To B.d.U. from U-57 arrival Börnestangen 20 July at 02.00 hours M.E.Z.  Entering Bergen only for torpedo resupply.  Position AN 2636.  
    11.34   Crash dive!  Biplane altitude 400 meters, 4-5000 meters range.  Assumption:  a consequence of the Radio Message at 09.30.  
    11.47   Surfaced.  
    12.00 AN 2734    
      NNE 2-3, 2/10, Sea 1-2, long swells    
    12.03   A Vickers Wellington at 100 meters altitude, 6-7000 meters range.  Presented a small silhouette.  
    16.00 AN 2813    
      ESE 3, 7/10, Sea 2, long swells    
    20.00 AN 2398    
      SSE 3, 9/10, Sea 2, rain squalls    
    24.00 Norwegian Coast Day's run:  Submerged 1.5 nm  Surfaced 221 nm.  
      SSE 5, obscured/mist, Sea 4    
                                         
    20.07.40      
           
Sun and Moon Data 18.07.40
Sun and Moon Data 19.07.40
 
- 8 -
 
           
           
           
           
    20.07.40      
    01.20 Passed to the north of Marstein    
    01.40   In company with mine escort "ARCTURUS".  
    03.55   Released from           "                     "           .  
    04.10   Made fast "UNITAS".  
      Bergen Fuel taken over.  
    11.25 America Pier 5 torpedoes taken over.  Torpedoes have been stored several weeks without being charged.  Batteries at 108 volts.  Air dropped to 110 atmospheres.  
    16.00 Made fast Marineholm Made fast hidden by the sailing school ship "LEHMKUHL".  The officers have the watch.  
        Repairs and exterior work.  Vent for ballast tank I, power plant controls, chain for the starboard RPM indicator, cooling water pumps for both diesels, driving chain sprocket for forward diving plane and rudder.  
        Day's run:  Surfaced 23.4 nm Submerged ----.  
                                         
    21.07.40 Rest for the crew    
    22.07.40   Findings for ballast tank III which has leaked for a few days: a tear above where the diving plane passes through.  Manageable. G.H.G. completely out of service.  No repair possible.  Provisions taken over.  
    M.G.Z.      
    20.00 Bergen Ready for sea.  
        In company with U-61 and ARCTURUS.  
    22.30   Released from mine escort.  
        Zigzagging on the surface.  
    23.25   Passed Marstein, hit check point to the north.  
    24.00 Marstein Day's run:  Surfaced 30 nm.  
      NNW 3-4, 8/10, Sea 2-3    
                                         
    23.07.40      
    00.20   Started advance to the west.  
    04.00 AN 2368    
      NW 3, 9/10, Sea 2    
    08.00 AN 2348    
      NW 3, 7/10, Sea 2    
    09.41   Crash dive!  Aircraft bearing 270° on course 180°, altitude 2000 meters, range 3000 meters.  
    09.59   Surfaced.  
    10.19   Biplane bearing 280° on course 0°, Type Walrus, altitude 100 meters, range = 5000 meters.  
    10.32   Surfaced.  
    12.00 AN 2286    
      WSW 2, 4/10, Sea 1    
           
           
Sun and Moon Data 20.07.40
Sun and Moon Data 21.07.40
Sun and Moon Data 22.07.40
Sun and Moon Data 23.07.40
 
- 9 -
 
           
           
           
    continued      
    23.07.40      
    16.00 AN 2653    
    16.17   Crash dive!  Aircraft bearing 300°T on course W, Type Walrus, altitude 1000 meters, range = 4-5000 meters.  
    16.30   Surfaced.  
    16.35   Crash dive! for the same aircraft.  Observed through the periscope.  For 20 minutes the aircraft went back and forth, departs on a northerly course.  
    17.03   Surfaced!  
    17.30   Shetland Islands in sight to starboard.  
    18.17   Dived.  We are too close to land.  Waiting for the coming of darkness to pass through passage,  
    20.00 AN 2616    
      SW 2, 5/10, Sea 1    
    22.19   Surfaced!  Still close to the coast, ran off with a narrow silhouette, then slowly turned into the passage.  
    23.51   Large shadow in the center of the passage.  Came further to port to still pass to starboard because land is too close, approximately 5 nm with a clear sky, visible half-moon and opposing current.  Decision: wait until the current changes, then pass through submerged.  
    24.00 AN 2618 Day's run:  Submerged 10.2 nm Surfaced 170.2 nm.  
      SW 2, 5/10, Sea 1    
      To the NW a red sunset, to the SE the moon.    
                                         
    24.07.40      
    00.05   Urgent Radio Message to U-57, U-59 from B.d.U.  
        Own aircraft shot down.  The latest location 20.45 hours in AN 2697.  On course to Stavanger.  
    00.17   Distance to the specified location about 50 nm.  Immediately turned in the direction of the accident area and ran off.  
    00.25   Radio Message to U-57 and U-59 from B.d.U.  
        Assist the aircraft that made a forced landing if you can reach by noon on 24 July.  
    01.38   Several red stars. Turned towards.  Recognition signals from two German aircraft.  We repeat.  Aircraft circle round us, with set navigation lights.  Probably searching for the aircraft that made a forced landing.  
        Aircraft turn to the south, fire recognition signals at different places repeatedly requesting an answer.  Pass out of sight.  
    03.52   Crash dive!  Low flyer on opposite course.  Altitude 20 meters, range = 4-5000 meters.  
    04.00 AN 2682    
      W 1-2, 7/10, Sea 1    
    04.10   Surfaced.  
    04.27   Crash dive!  Aircraft bearing 100°T, course 200°, altitude 800 meters, range = 4000 meters.  
           
           
Sun and Moon Data 23.07.40
Sun and Moon Data 24.07.40
 
- 10 -
 
           
           
           
    continued      
    24.07.40      
    04.50   Surfaced.  
    05.30 AN 2697 Reached the specified square of the downed aircraft. Went south for 45 minutes, then alternating on course 45° and 135° for 45 minutes.  
    08.00 AN 2699  
      SSE 2, 9/10, Sea 1    
    12.00 AN 4212    
      SE 2, 8/10, Sea 1    
    16.00 AN 4132 lower-left Searching broken off.  Proceeding on course 300°.  Decide to pass between North Ronaldsay and Fair Isle with darkness.  
      SE 2-3, 9/10, Sea 2  
    20.00 AN 2679 upper-right    
      ESE 2-3, 8/10, Sea 2    
    20.12   Fair Isle in sight ahead to starboard.  
    20.17   Crash dive!  Aircraft pounced at range 800 meters, failure of the lookout.  
        Hold to the plan for the south passage.  Lighting and horizon are favorable.  
    22.12   Surfaced.  
    23.47   To the southwest of the island two shadows which might be small islands, but also vessels.  
    24.00 AN 1493 lower-right Day's run:  Submerged 5.5 nm Surfaced 180.5 nm.  
      SE 3, 9/10, Sea 2    
                                         
    25.07.40      
    00.00   Shadows were distinguished as patrol vessels, later as destroyers, ran off from Fair Isle turning to show a narrow silhouette.  Cannot have seen us yet, boat stands before the dark horizon.  Must have waited for us and heard us now.  Showed a narrow silhouette and ran at AK on 145° east.  
    00.13   4 other destroyers come with high speed (heavily smoking from the stacks) around the eastern side of the island.  All 6 destroyers unite and approach in a wide searching formation, target angle 0°, with high speed towards us, came to course 180°.  
    00.25   Attempt to run off on the surface at AK, given up. Destroyers approach rapidly.  
        Crash dive!  At high speed turn 90° to course 90° and run off.  After 10 minutes to KF.  Everything switched off.  
        Belief:  boat was reported by aircraft.  Obvious from the type of maneuver that action was preplanned.  The enemy will take the view that boat will maintain general course W for a successful outcome.  Therefore, turned back to the east.  
        The failure of the G.H.G. is sorely felt.  
           
Sun and Moon Data 24.07.40
Sun and Moon Data 25.07.40
 
- 11 -
 
           
           
           
    continued      
   

25.07.40

02.40

  Destroyers pass with slow speed over our wake (80 meters depth).  Boat is illuminated occasionally by Asdic but not held by the device.  Current is running to my advantage.  At periscope depth nothing is seen.  Later attempt to surface at dawn.  
    02.45   Surfaced.   Am positioned very unfavorably before the red dawn before the destroyers which I can still see in a small silhouette.  Did not blow, ran off at high speed.  
    02.55   Aircraft Alarm!  Low flying aircraft approached, range 1000 meters, may be a coincidence.  
    03.10   Surfaced.  
    03.15   Aircraft Alarm!  Aircraft comes back, altitude 40-50 meters, range = 2000 meters.  Additionally a destroyer at high speed target angle 0°.  The enemy works very cleverly.  Ran off 90° to the course direction of the destroyer on a northerly course.  
    03.29   Went to periscope depth to see how the destroyers are working.  Very little periscope was shown, despite that apparently was seen.  
   

03.32

04.15

 

AN 2675

Aircraft bomb in the immediate vicinity.  Went to 80 meters.  Ran off further.  Heard sound detection again.  4 depth charges, strong concussions but not directly above us, no failures.  Destroyer works us over, then goes away slowly.  The current apparently resulted in poor sound detection conditions for the enemy.  
        Meanwhile, one regulating tanks is empty.  The boat sinks further.  Due to the absence of a compensation line between the port and starboard regulating tanks balancing takes longer.  
    04.36   Boat drops to the bottom at depth 120 meters.  
        Conclusion:  Since the destroyers seem to continue, remained lying, as long as current flows into the passage.  
    11.10   Continuing to proceed submerged on course 65°, current now running out.  It is not yet advisable to surface because of proximity to land.  
    16.00 AN 2676    
    16.10 NE 2-3, 3/10, Sea 1-2 Surfaced!  With the prevailing clear weather, the missing nights and the strong surveillance discovered, I give up the attempt to pass north or south of Fair Isle.  
    20.00 AN 2661 Proceeding to the Shetlands.  
      N 2-3, 4/10, Sea 1-2    
    24.00 AN 2191 Day's run:  Submerged 16.1 nm Surfaced 77.0 nm.  
      N 2-3, 3/10, Sea 1-2    
                                         
           
           
Sun and Moon Data 25.07.40
 
- 12 -
 
           
           
           
           
    26.07.40 East of the Shetlands    
    02.48   Crash dive!  Aircraft at 6000 meters range, altitude 400 meters.  
    03.09   Surfaced.  
    04.00 AN 2161 Crash dive!  Aircraft at 5000 meters range, altitude 50 meters.  
      NNW, 4/10, Sea 2  
    04.35   Surfaced.  
    05.32   Crash dive!  2 aircraft at 8000 meters range.  
    05.46   Surfaced.  
    07.38   Crash dive!  Aircraft at 3000 meters range, altitude 400 meters.  
    08.00 AN 2132    
      N 4-5, 6/10, Sea 4    
    08.26   Surfaced.  
    09.27   Radio Message from B.d.U.  
        U-59 at "Cape Wrath".  
        U-57 operate at "But of Lewis".  
        Convoy traffic observed close to the coast west of the "Herbrides" - "Cape Wrath" - "Pentland Firth".  
    10.36   Crash dive!  Aircraft at 4000 meters range, altitude 300 meters.  
    10.49   Surfaced.  
    12.00 AF 7867    
      N 4-5, 9/10, Sea 3-4    
    16.00 AF 7846 upper-left    
      N 3-4, 5/10, Sea 2-3    
    20.00 AF 7793    
      NW 2-3, 4/10, Sea 2    
    24.00 AN 1221 Day's run:  Submerged 3.9 nm Surfaced 220.8 nm.  
      NNW 2-3. 5/10, Sea 1-2, Vis. very far    
                                         
    27.07.40      
    01.35   Shadows made out.  Dived for attack.  
    02.55   Shadow is identified as a rock off Foula Island.  Surfaced.  
    04.00 AN 1166    
      N 2, 6/10, Sea 1, Vis. very far    
    07.00 Part of the Shetlands can be seen at 40-50 nm Sunderland aircraft altitude 400 meters, range 10000 meters on course for the Faroes, and several patrol vessel smoke trails sighted.  Vessels do not come out [over the horizon] Visibility 40-50 nm.  
    08.00 AN 1322    
      NW 2-3, 5/10, Sea 1    
    09.10   Crash dive! for Sunderland aircraft on course for the Orkney's.  
           
           
           
Sun and Moon Data 26.07.40
Sun and Moon Data 27.07.40
 
- 13 -
 
           
           
           
    continued      
    27.07.40      
    09.36   Surfaced.  
    10.16   Aircraft Alarm!  For Sunderland aircraft on course for the Faroes.  Dived.  Aircraft provide reconnaissance between the Faroes and the Orkney's.  
    10.43   Surfaced.  
    11.50   4-masted steamer comes in sight at long range.  Steamer runs at low speed, zigzags on general course 350° (Faroes).  Maneuvered ahead at 2 x GF at the limit of visibility.  
    12.00 AN 1318    
      W 3-4, 5/10, Sea 3    
    13.05   Sunderland aircraft at the limit of visibility, course to the Orkney's.  
    13.47   Maneuver ahead completed.  Dived for attack.  Steamer turns out to be a small grey 2000-ton steamer flying a Finnish flag without neutrality markings.  Steamer appeared bigger by a mirage, emphasized by his 4 masts.  
    14.45 AN 1178 Shot from 300-350 meters range, target angle 90°, depth 3 meters.  Torpedo jumps shortly before reaching the target to a height of 1-2 meters out of the water at the level of the bow.  Had the impression that torpedo then went deep nose first.  Short time later (3-4-minutes) a heavy detonation.  Steamer goes on undisturbed.  Apparently a detonation at the end of the run.  Meanwhile, position and range to the steamer are too unfavorable for a second shot. Steamer is not worth a lengthy maneuver ahead.  
      W 4-5, 6/10, Sea 3-4  
        Torpedo reloaded submerged.  
    16.20 AN 1178 Surfaced.  Continued advance to ordered operations area.  
      W 4-5, 7/10, Sea 4    
    20.00 AM 3453    
      WSW 3, 8/10, Sea 2    
    21.15   Directly ahead North Rona in sight.  
    24.00 AM 3622 upper-right Day's run:  Submerged      8.9 nm  
      NW 2-3, 7-8/10, Sea 1-2                  Surfaced      180.5 nm.  
                                         
    28.07.40      
    01.30 Lighthouse on Cape Wrath comes in and out of sight in changing visibility. Several vessels with set navigation lights in the Minch.  
    04.00 AM 3655 It is already quite bright.  Convoy in sight approaching from out of the Minch, for the Pentland Firth close below Cap Wrath.  
      W 3, 7/10, Sea 2  
           
           
           
Sun and Moon Data 27.07.40
Sun and Moon Data 28.07.40
 
- 14 -
 
           
           
           
    continued      
    28.07.40      
        Approach on the surface is not possible due to intense aircraft escort.  
    04.04   Crash dive!  Convoy emerged from a dark cloud, came out quickly.  Broke off the attempt to oeration on the surface on the last ship.  Convoy consisted of only a few vessels.  
    04.58   Surfaced.  
    05.15   Chased after a cloud of smoke in the Minch.  Turned away.  A patrol vessel also below the But of Lewis.  
    07.27   Mastheads in sight bearing 160°T.  
    07.34   Crash dive!  As it draws near a patrol vessel is recognised.  
    08.00 AM 3652    
      W 4, 9/10, Sea 3    
    08.52   Surfaced.  Afterwards in the periscope at depth 11.5 meters nothing more was seen.  Absence of the G.H.G. makes itself felt.  
        Immediately thereafter dived for 2 patrol vessels.  Whole area between Sulisker, But of Lewis - Cape Wrath is under the control of harmless patrol vessels.  
    09.33   Surfaced.  
    12.00 AM 3654 I am in constant contact with the coast, avoided several patrol vessels.  Patrol vessels have a stern cannon, go by day with a black ball in the forestay, at night with set white lights.  
      W 4, 9/10, Sea 3-4  
    16.00 AM 3654  
      W 4, 9/10, Sea 3-4    
    20.00 AM 3654    
    24.00 AM 3649 Positioned 2-3 nm north of the But of Lewis moving back and forth.  
        Day's run:  Submerged  22.5 nm  
                         Surfaced      71.9 nm.  
                                         
    29.07.40   With increasing brightness ran off to the northeast of the But of Lewis.  
    04.00 AM 3657 upper-left    
      SW 3-4, obscured/mist, Sea 3    
    08.00 AM 3654 Remained on the surface, because without the G.H.G. the boat is completely blind.  Visibility varies between 500 and 2000 meters.  Avoided patrol vessels, occasionally diving if they came out of the fog too quickly.  
      SW 3-4, obscured/mist, Sea 3, misty, Vis. 800-1000 meters  
    09.16   Radio Message:  U-57, U-59 from B.d.U.  
        If no traffic is met go to the North Channel, U-56 go to Fastnet, if there are no  
           
           
Sun and Moon Data 28.07.40
Sun and Moon Data 29.07.40
 
- 15 -
 
           
           
           
    continued      
    29.07.40      
        attack opportunities, further towards the North Channel.  All boats report by short signal when transferring operations area.  
        Decision:  remain 1-2 more days to form an opinion.  
    12.00 AM 3656 Visibility was occasionally greater than 6000 meters.  
      SW 3-4, obscured/mist, Sea 3    
    13.07   Dived for patrol vessel.  
    13.40   At periscope depth.  A destroyer departs at high speed and passes on a SW course.  Already at a broad target angle when emerging from the fog.  
    13.47   Surfaced.  
        Patrol vessels become more numerous.  
    16.00 AM 3666 upper-right A destroyer emerges from the fog bearing 130°, 3000 metes range, target angle 90°.  
      WSW 3-4, obscured/mist, Sea 3  
      Dived.  
    16.23 Vis. 2000-3000 meters Surfaced.  Headed for the destroyer.  Crash dive before patrol vessels who quickly emerge from the haze.  
    16.40   Held in Asdic pinging.  Visibility becomes continually worse. In the periscope it is difficult to see anything.  
    16.45   At 5000 meters a destroyer appears as a faint shadow, disappeared immediately again.  Turned towards it.  
    16.50   Hull of a large vessel.  Target angle still 0° as visibility becomes temporarily better.  In view: 3 columns of the largest vessels, distance between columns 300-400 meters, outer column hardly to make out.  Am positioned ahead of 2 steamers of the middle column.  Can not get any further clear by turning.  Quickly went to 20 meters.  Asdic pinging has stopped.  [Ordered the boat] to periscope depth.  Chief Engineer does not get the boat up quickly enough. [Ordered] "Quickly go to periscope depth" at GF or HF.  The boat then came up in the wake of a steamer of the outer column.  Wanted to turn to approach the following steamer of the outer column for the shot.  
        Boat cannot be held for inexplicable reasons.  Rises to 8 meters.  Large measures taken to force the boat deep.  Boat must have been seen.  Briefly I see an escort to each side at 50 or 150 meters lying near me stopped.  Heavy flashing traffic.  Boat goes deep again, then oscillates again to 8.5 meters depth.  
        I must allow time for the boat to be balanced.  
        Meanwhile, occasional Asdic-pinging.  When I can show the periscope again, the final ship in the outer column is just passing, a Swede with big painted neutrality markings, 1500 tons, over 150 meters.  
           
           
           
Sun and Moon Data 29.07.40
 
- 16 -
 
           
           
           
    continued      
    29.07.40      
        After this episode made the firm decision:  after this patrol ensure that the G.H.G. is made operable.  
        1.)  the convoy had been heard earlier,  
        2.)  I could have maneuvered submerged by sound bearings.  
    17.16   Surfaced.  Visibility 50-100 meters.  Chased at 2 x GF in the assumed direction of the departing convoy, 270° from the Pentland Firth.  
    18.40 AM 3664 Convoy comes into view, protected by 2 escorts astern.  Turned off to the south, to steam up the port side.  
      Visibility getting better 600-800 meters  
      Visibility 1000-2000 meters An escort comes into view to port.  Turned off to the north, to steam up the starboard side.  At this moment the fog bank dissipates.  
      Visibility 6000-10000 meters Convoy can be seen in its entirety, in line ahead formation course west.    Both escorts see me (see English U-boat warning).  Could not be avoided, [if we were] to stay close.  
    19.00 - Visibility 3000-4000 meters Came to a northerly course, to deceive the escort.  
    19.20

 

Visibility 500 meters

Visibility becomes worse again.  Escort out of sight, course west with 2 x GF plus 2 x 10 RPM.  Sea and swell from ahead.  
    20.00 AM 3654    
      WSW 4, obscured/mist, Sea 3-4, moderate swell, Vis. variable between 600 and 2000 meters    
    21.20 AM 3646 Can not yet see convoy.   Afterwards visibility deteriorated again and dawn was breaking.  Positioned at the level of the But of Lewis.  Convoy is no longer bound to a westerly course.  Pursuit abandoned, ran back on an easterly course.  
      Visibility temporarily 5000-8000 meters  
    24.00 AM 3655    
      WSW 4-5. obscured/mist, Sea 4, moderate swell, very misty    
        Day's run:  Submerged      6.4 nm  
                         Surfaced      138.6 nm.  
                                         
    30.07.40      
    04.00 AM 3663    
      WSW 7, obscured/mist, Sea 5-6, heavy swell, very misty    
    04.16 Visibility 300 meters Dived due to the weather.  
    04.50      
           
Sun and Moon Data 29.07.40
Sun and Moon Data 30.07.40
 
- 17 -
 
           
           
           
    continued      
    30.07.40      
    04.50   2 depth charges heard at long range.  
    08.00 Weather unchanged    
    11.00   2 depth charges heard at long range.  
    12.00 Weather unchanged    
    13.48 WSW 7, obscured/mist, Sea 5-6, heavy swell, Vis. 3000-4000 meters Surfaced with improving visibility.  Guard vessel activity is undiminished.  As far as possible, proceeding on the surface. Dived and average of 1 to 2 times per hour.  
    16.00 AM 3661    
      W 6, obscured/mist, Sea 5    
    18.35 Visibility 3-5000 meters Steamer in sight course 270° close to the coast, target angle already 80°.  Attempting to get ahead.  Closed as visibility deteriorated.   
    19.00   4 patrol vessels ahead.  
        Continued submerged at GF.  
        Steamer turned into the Minch.  4 patrol vessels become 14 which run fan out from a collecting point to the west to the north.  
    20.00 AM 3681 Am 4 nm east of the But of Lewis.  
      NWbyW 5, obscured/mist, Sea 4, very misty    
    21.43 Visibility 500 meters, misty and dark night Surfaced.  Broke through a chain of patrol vessels to the NW.  Again covered a position to the north of But of Lewis.  
    24.00 AM 3646 Day's run:  Submerged  17.9 nm  
      NWbyW 5, obscured/mistt, Sea 4                  Surfaced      68.1 nm.  
                                         
    31.07.40 Back and forth north of the But of Lewis    
      AM 3644    
    04.00 WSW 5, obscured/mist, Sea 3-4, heavy swell, Visibility better 8-10000 meters    
    08.00 AM 3642 Several smoke trails noticed, when closer recognized as patrol vessels.  
      WSW 4-5, obscured/mist, Sea 3-4, high long swell  
    12.00 Between Sulisker and the But of Lewis, visibility over 20 nm    
      WSW 3, 8/10, Sea 3, long swells    
    14.36   Dived for aircraft, Type Fairy "Swordfish", altitude 400 meters, range 6000 meters.  
    14.53   Surfaced.  
           
Sun and Moon Data 30.07.40
Sun and Moon Data 31.07.40
 
- 18 -
 
           
           
           
    continued      
    31.07.40      
    15.08   Dived for the same aircraft.  In the periscope another aeroplane of the same type.  Both circle in our vicinity.  A Sunderland passes to the SW.  
        Either forerunners of a convoy or a submarine hunt.  
    15.35   Surfaced.  
    16.00 AM 3644    
      WSW 3, 4/10, Sea 2, long swell    
    16.38   Aircraft, Type Fairy "Swordfish" circling close to land.  
    17.00   Proceeding submerged off the But of Lewis  
    18.00   4 depth charge detonations at long range.  
    20.00 AM 3646    
      WSW 2, 2/10, Sea 1, Vis. very good    
    22.05   Surfaced, it is still very bright, left the upper deck awash.  6 patrol vessels moving back and forth in an east-west line.  In the east a semi-circle of patrol vessels also stretches out.  Own freedom of movement extremely slight.  
    23.00 Vis. 3-4000 meters Too bright for an attack on the surface, very dark for a submerged attack.  
    24.00 AM 3645 Day's run:  Submerged   6.7 nm  
      WSW 2, 3/10, Sea 1, medium swell                  Surfaced      83.5 nm.  
                                         
    01.08.40      
    03.12   To continue following the coast, dived.  Remaining 5-10 nm offshore.  This area is, from previous observation, usually busy with convoys.  Intentions for the following day submerged transit and in so doing transfer operations area to Cap Wrath, because, from previous observation, the control point for inbound convoys is lifted there.  
    04.00 AM 3644    
      WSW 1-2, 2/10, Sea 1, medium swell    
    08.00 AM 3643 U-boat hunter flotilla passed by on a westerly course, 5 boats.  Uncounded patrol vessels.  
    xx.00   4 depth charge detonations at approximately 10000 meters.  
           
           
Sun and Moon Data 31.07.40
Sun and Moon Data 01.08.40
 
- 19 -
 
           
           
           
    continued      
    01.08.40      
    12.00 AM 3651 Radio Message from B.d.U.:  
        Scapa reports to a destroyer that on 31 July a submarine was sighted 15 nm southwest of Cape Wrath with course south.  
        It cannot have been U-57.  The consequences for us are that the area of Cape Wrath is the location for U-boat-hunting, i.e. for us to remain there in the prevailing good weather conditions we must remain submerged for 21 hours, with only 3 hours surfaced, which promises little success.  
    14.00   Decision:  
        Although only 13.56 tons of fuel remain, shifting operations area to the North Channel with the view to supply at Lorient while still passing through a traffic area.  
    16.02   Radio Message:  Traffic density report from B.d.U.  
    17.23   6 depth charge detonations at great range.  
    20.00 AM 3643    
      W 2, 4/10, Sea 1, medium swell    
    20.52   Surfaced.  Transit to new operating area.  
    21.30   Radio Message Short Signal to B.d.U.  
        Shifting my operations area to the center of AM.  No traffic, only patrol vessels.  
    22.49   Radio Message Short Signal understood.  
    24.00 AM 3591 upper-left Day's run:  Submerged  39.8 nm  
      W 1, 4/10, Sea 0, medium swell                  Surfaced      47.6 nm.  
                                         
    02.08.43 West of the Herbrides    
    04.00 AM 3576    
      WSW 1, 7/10, Sea 0, heavy swell    
    08.00 AM 3743    
      W 1, 4/10, Sea 0    
    08.40   Radio Message to U-57 from B.d.U.  
        Operations area north of 55 45 North, focal point east of 10° West.  U-56 is in the same area, U-90 is to the west, to the south U-58 and U-52.  
    08.00 AM 3912    
      NE 1-2, 6/10, Sea 1, light swell, Vis. good    
    xx.x5   Smoke cloud close to land.  
           
           
Sun and Moon Data 01.08.40
Sun and Moon Data 02.08.40
 
- 20 -
 
           
           
           
    continued      
    02.08.43      
    13.15   Crash dive!  As it neared recognized as a fishing trawler (800-tons), turned away.  
    14.09   Surfaced.  
    14.18   Smoke trail, made out as a patrol vessel.  
    16.00 AM 3945    
      ESE 1, Sea 0, overcast, light swell    
    20.00 AM 3978 upper-right Evaded 2 patrol vessels.  
      SE 1, Sea 0, overcast    
    22.00 Completely dark    
    24.00 AM 5522 Day's run:  Submerged     1.9 nm  
      S 0, Sea 0, overcast, misty horizon                  Surfaced     209.6 nm.  
                                         
    03.08.40      
   

03.00

03.55

Dawn is breaking, ground fog, Vis. 2000-3000 meters Avoided several patrol vessels with set navigation lights.  Lights and radio beacons are almost all in operation with peacetime identification.  Steamer sighted with target angle 90°, range = 2-3000 meters.  Speed not determined.  Maneuver ahead.  Visibility is quickly improving.  
    04.00 AM 5365 upper-left Dived, to avoid being seen, on the other hand cannot allow the distance to become too big.  While maneuvering ahead speed estimated at 12 knots.  While running in submerged estimated at 8 knots.  Shot at 1000 meters, target angle 100°.  Missed. As it later turns out when taking position the steamer was running even slower.  
      ESE 1-2, 1/10, Sea 1, misty  
        While taking position had reached target angle 90°.  Forced to submerge by an excort vessel vessel directly ahead.  
    05.02 Sun burned off the fog Ran off, steamer abandoned.  
    07.45 AM 5364 While on course south a loaded steamer ahead.  I seem to be on the steamer's track, target angle already 60°, range = 3-4000 meters, closed submerged at AK.  Steamer is on a northerly course.  1st shot from 1550 meters.  Missed.  2nd shot with the same firing data, depth 3 meters (4 meters for the first shot), hit in the boiler room.  Large steam cloud develops.  Steamer quickly sinks.  Estimate 5000 tons, Swedish neutrality markings, a new ship.  Within 3 minutes there is nothing to be seen.  
      SE 1-2, 2/10, Sea 1  
    08.11   Surfaced.  
    08.16   Dived for a patrol vessel which hurries to the scene of the accident.  Ran off and loaded the last torpedo.  
    10.25   In the periscope:  
        Aircraft, Type "Walrus" circling over the sinking location.  
    12.00 AM 5559 In the periscope:  
      ESE 1, 0/10, Sea 0    
           
Sun and Moon Data 02.08.40
Sun and Moon Data 03.08.40
 
- 21 -
 
           
           
           
    continued      
    03.08.40   In the periscope:  
        Aircraft, Type "Walrus" over flies the boat, course S.  
    12.45   Surfaced.  
    14.17   Crash dive!  Aircraft on easterly course, range = 2000 meters, altitude 400 meters.  
    15.42   In the periscope:  
        A large passenger steamer is visible in the haze, Type "ALKANTARA", 22200 tons, protected by a large patrol vessel, target angle 80°, range = 4000 meters, running at high speed.  
        This large steamer turns away, steers zig-zags, disappears in the fog.  Guard vessel remains visible.  No radio signal sent because general course is not clear, G.H.G.is inoperative.  
    16.29 AM 5382    
      ESE 0-1, obscured/mist, Sea 0    
    18.11 Fog, Vis. 1000 meters Vessel ahead in the fog.  Dived.  Made out as a patrol vessel.  Turned away.  
    18.30   Surfaced.  
       

Proceeded on [approximately latitude 55°30'N] N to the east east to advance into the actual North Channel.

 
    19.52   A tanker 2000 tons 500 meters abeam on a parallel course, maneuvered ahead.  Suddenly visibility deteriorates to 300 meters.  Closed.  Mastheads come into view above the ground fog, target angle 0°.  Hard turn for a surface attack.  Steamer gives fog signal, when he perceives us.  At the same moment shot over the net cutter from 300 meters.  
    20.10 AM 6174 Steamer turns hard.  Missed.  Among other things steamer transmits:  Submarine probably friendly.  First on a false course, after steamer is out of sight came to a westerly course.  Decision:  Because the area is so productive, use the closest supply possibility, accepting the failed G.H.G. and other minor malfunctions and start return transit to Lorient.  
      Wind calm  
    21.30   Radio Message from B.d.U.:  
        English U-boat report AM 6174 at 22.16 hours.  
    24.00 AM 5384 Day's run:  Submerged    16.4 nm  
      W 1-2, 5/10, Sea 1                  Surfaced     114.4 nm.  
                                         
    04.08.40      
    04.00 AM 5295 Avoided patrol vessel.  
    06.25 SW 4, obscured/mist, Sea 3 Radio Message Short Signal from "U-57":  
      Position west of Irland.  
    07.16   Radio Message to "U-57" from B.d.U.:  
        Position report west of Ireland is confirmed.  
    08.00 AM 5513    
      WSW 3-4, obscured/mist, Sea 4    
    12.00 AM 5461    
      WSW 3, 7/10, Sea 2-3    
           
           
Sun and Moon Data 03.08.40
Sun and Moon Data 04.08.40
 
- 22 -
 
           
           
           
    continued      
    04.08.40      
    14.00   Radio Message to B.d.U. from "U-57":  
        5000 tons sunk, 3 misses, 1 failure.  Started return transit to Lorient.  Position AM 5741.  Incorrect encoding!  
    16.00 AM 5476    
      SWbyW 3, 7/10, Sea 2    
    19.40   Radio Message to B.d.U. from "U-57":  
        Position 14.00 hours AM 5741 5000 tons sunk 1 failure, 3 misses, Going to Lorient.  
        Radio Message 15.56/4, 124 cancelled.  
    20.00 AM 5717    
      W 2, 8/10, Sea 1, medium swell    
    24.00 AM 5774 Day's run:  Surfaced      - - -      216 nm  
      W 2, 6/10, Sea 1                  Submerged   - - -   - / / - nm.  
                                         
    05.08.40      
    04.00 AM 8114 Transit to Lorient.  
      WbyN 2, 0/10, Sea 1    
    08.00 AM 8414    
    12.00 AM 8477    
      W 1, 5/10, Sea 0    
    16.00 AM 8747    
      NW 2, 7/10, Sea 1    
    20.00 BF 1124    
      NW 1, 9/10, Sea 0    
    24.00 BF 1168 Day's run:  Submerged   - / / - nm  
      Wind calm, 5/10, medium swell                  Surfaced         224 nm.  
                                         
    06.08.40      
    04.00 BF 1521 Transit to Lorient.  
      NNW 2, 8/10, Sea 1    
    08.00 BF 1568 upper-right    
      NNE 2, 2/10, Sea 1    
    08.36   Radio Message from "U-57" to B.d.U.:  
        Reporting 12 hours in advance of intended arrival time "Lorient".  
    09.03   Aircraft, probably Type: German Wal, range 8000 meters on NW-course.  
    11.40   Dived for aircraft, Type Vickers Wellington, range = 10000 meters.  
    12.03 BF 1921 Surfaced.  
      NNE 2, 6/10, Vis. very good    
    12.46   Dived for aircraft similar type, range = 5000 meters.  At 20 meters aircraft bomb approximately 2-300 meters distant.  
    13.18   Surfaced.  
    14.52   Dived for same type aircraft, range 8000 meters.  
           
Sun and Moon Data 04.08.40
Sun and Moon Data 05.08.40
Sun and Moon Data 06.08.40
 
- 23 -
 
           
           
           
    continued      
    06.08.40      
    15.21   Aircraft passes from sight in the periscope.  Surfaced.  
        Aircraft sighted again at 10000 meters.  
    15.25 BE 1929 Another aircraft approaches unexpectedly from the sun and opening fire at 1000 meters range.  Dives at us while shooting from a turret and two fixed M.G.'s.  Shots cover us.  
        Crash dive.  Bow room crew hear the bomb fall hard into the water beside the hull.  No detonation.  
    18.47   Surfaced.  
        Found 15 bullet holes, of these 3 on the bridge, 6 in the conning tower casing.  
    19.23   Dived for aircraft range = 10000 meters.  
    20.06 BF 1946    
      Wind calm, Sea 0    
    22.18   Radio Message to B.d.U. from "U-57".  
        Will arrive 7 August 16.00 MGZ at the Fishing Buoy.  Position BF 1962.  
    24.00 BF 2772 Evaded patrol vessel.  
        Day's run:  Submerged    10.4 nm  
                         Surfaced      168.2 nm.  
                                         
    07.08.40      
    04.00 48°06'N, 6°W.    
    08.00 Wind calm, Sea 0    
    09.44   Radio Message to "U-57" from B.d.U.:  
        Be at Fishing Buoy only at 20.00 hours German Summer Time  
    M.G.Z.      
    12.00 South of Maussee de Leier    
    16.00      
    17.50   Taken in mine convoy.   
    19.16   Made fast Lorient.  
           
        Day's run:  Submerged:  
                         Surfaced    :  
           
           
                                         
           
           
Sun and Moon Data 06.08.40
Sun and Moon Data 07.08.40

Enclosures to U-57's KTB - click on the text at left to proceed to the document
Torpedo Torpedo firing reports

 
 
     
                                                                                                                                        U-57  
                                                                                                                            
     
     
 

Comments of the B.d.U.

 
 
 
 

 

 
 
1. The uselessness of the G.H.G. was exceptionally vexing.  In heavily patrolled areas and especially in low visibility the sound locator is a particularly valuable aid.  It is regrettable that the shipyard could not bring the device to a fully operational condition.
   
2. On 16 July the short signal "nein" should have been delivered according to the clear orders.
   
3. The enterprise was led with special guts, toughness and talent; in spite of bad weather and heavy patrols the Commander achieved the best success with his boat.
 
     
     
     
   
Signed in draft:  Dönitz
 
   
For the Befehlshaber der Unterseeboote
 
   
The Chief of Operations
 
                             
     


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