U-141 - 3rd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed
Date
Arrived
Date
Days at Sea
Lorient
14 July 1941
Lorient
1 August 1941
19

 

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
26 Jul 41
03.35
55°39'N, 9°35'W
BOTWEY
5,106
British
OS-1
26 Jul 41
03:35
55°39'N, 9°35'W
ATLANTIC CITY (damaged)
5,133
British
OS-1
     
 Total = 10,239
   
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.

 

This KTB uses the depth notation "depth T = xx meters"  Under this scheme, the actual depth was twice the depth given after T = so for example, if the KTB entry read "depth T = 50 meters, the actual depth was 100 meters.  This was intended to hide the actual depth for security purposes. This notation was used from about January 1940 to December 1941.  In these KTBs, depths written without using "T =", for example "dived to depth 35 meters" were not so disguised.

 


 
                                                                                        
 
           
           
           
           
               
           
           
                         K  r  i  e  g  s  t  a  g  e  b  u  c  h  
                      = = = = = = = = = = = = = = = = = =  
           
           
                                          "U 141"  
           
           
                            from 14 July 1941 to 1 August 1941  
           
                                      3rd War Patrol.  
           
           
                Kommandant:  Oberleutnant zur See Schüler.  
           
           
           
                              
       
Distribution: 2 x O.K.M. Skl.U.
  1 x B.d.U. -Op-
  1 x B.d.U. -Org.-
  1 x 3.Uflottille
  1 x U-141.
 
           
           
           
              
           
           
        © U-boat Archive 2024 - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 1 -
 
           
           
           
           
                                      Harbor Period from 27.6.41 - 13.7.41  
           
    27.06.41 Lorient Work duty.  
    28.06.41      
    11.30   Muster of the crew with B.d.U.  
        Half of the crew is on leave until 11.7.41.  
    29.06.41       " Duty according to Sunday routine.  
                                                                
    30.06.41       "  
    08.00       " Boat shifted to the dry-dock  
        Work duty.  
    01.07.41       " Work duty.  
        Boat lay in the dock  
                                                                
    02.07.41       " Work duty  
        Boat lay in the dock.  
                                                                
    03.07.41       "  
    04.07.41       "    
    12.00   Boat undocked and shifted to the charging station.  
                                                                
    05.07.41       " Work duty.  
                                                                
    06.07.41       " Duty according to Sunday routine.  
                                                                
    07.07.41       " Work duty.  
    08.07.41       " Cast off from the charging station, made fast MARTINIERE.  
    09.07.41       " Work duty  
                                                              
    10.07.41       " Work duty.  
                                                                
    11.07.41       " Cast off - Sea trial - diving test - radio direction finder calibration - degaussing.  
    12.00    
    20.00   Made fast.  
                                                                
    12.07.41       " Provisions loading, took over the boat.  
                                                              
    13.07.41       " Duty according to Sunday routine.  
      Continued outfitting.  
    14.07.41       "                                                         
    21.00   Work duty and fresh provisions loading.  
        Ready for sea.  
                                                                
           
 
 
- 2 -
 
           
           
           
           
           
        K  r  i  e  g  s  t  a  g  e  b  u  c  h  
        ======================  
                         " U  141 "  
        from 14 July 1941 to 1 August 1941.  
           
    14.07.41 Lorient    
    21.00 Lorient Ready for sea.  Cast off AUDACIEUSE.  
    21.22 - 21.45   Trim test.  
        Outbound transit in accordance with Standing War Orders.  
    24.00 Weather:  SW 5, Sea 5-6, 5/10, Vis. good    
           
    [15.07.41]      
    12.00 BF 6473 Day's run:  Surfaced          66 nm  
                         Submerged      10 nm  
                         Total                76 nm  
                                                                
    16.00 BF 6475  
    16.20   Surfaced.  
    20.00 BF 5594    
      Weather:  WNW 6, Sea 6, 5/10, Vis. good    
    24.00 BF 5584 Transit to the west.  
      Weather:  WbyN 6, Sea 6, 6/10, Vis. good    
           
    16.07.41 Northern Bay of Biscay    
    04.00 BF 5496    
    08.00 BF 5485    
      Weather:  NW 5, Sea 4-5, 5/10, Vis. very good    
    11.20   Dived.  
    12.00 BF 5475 Day's run:  Surfaced        124 nm  
      Weather:  NW 5, Sea 3-4, 3/10, Vis. good                  Submerged        9 nm  
                       Total              133 nm  
                                                                
    14.00   Surfaced.  
    16.00 BF 4662    
    20.00 BF 4386    
      Weather:  NW 2, flat Swell, 2/10, Vis. very good    
    21.15 BF 4382 Crash dive for aircraft abeam to port.  
    22.00   Surfaced.  
    24.00 BF 4357    
      Weather:  NW 2, flat Swell, 3/10, Vis. very good    
           
           
           
Sun and Moon Data 14.07.41
Sun and Moon Data 15.07.41
Sun and Moon Data 16.07.41
 
- 3 -
 
           
           
           
           
    17.07.41 South of Ireland    
    04.00 BF 4312    
    08.00 BF 1947    
      Weather:  SW 3, Sea 2, 10/10, Vis. good    
    08.50 BF 1945 Crash dive for aircraft astern to starboard.  
    10.20   Surfaced.  
    12.00 BF 1919 Day's run:  Surfaced         166 nm  
                         Submerged         8 nm  
                         Total               174 nm  
                                                                
    16.00 BF 1656  
    20.00 BF 2446    
      SW 4, Sea 3, 10/10, Vis. moderate    
    20.45 BF 2454 Crash dive for aircraft astern to starboard.  
    22.50   Surfaced.  
    24.00 BF 2456    
      Weather:  SW 3-4, Sea 3, 10/10, Vis. medium    
           
    18.07.41 Isles of Scilly    
    03.35 BF 2517 Blinking beacon in sight, identification:  flash with 10 second recurrence.  
    04.00 BF 2517 Beacon distinguished as a black cone shaped lighted buoy bearing 200°T, 3 nm away off Lizzard.  Back and forth on changing courses close under land.  
    06.30 BF 2517 Dived.  
    08.00 BF 2517    
      Weather:  SW 3, Sea 2-3, 10/10, Vis. moderate    
    09.23 BF 2517 Two-smokestacked channel steamer with barrage balloon and a destroyer of the L-class escort in sight, course 240°, high speed of advance, range 200 meters.  Quickly passed out of sight.  
    12.00 BF 2517 Day's run:  Surfaced         146 nm  
      Weather:  SW 3, Sea 2-3, 8/10, Vis. moderate, at times hazy                  Submerged       15 nm  
                       Total               161 nm  
                                                              
    12.15 Vis. bad Surfaced, ventilated the boat.  
    12.36 BF 2517 Crash dive.  In suddenly disappearing haze a strongly escorted convoy in sight bearing 90°T range 3000-4000 meters.  Distinguished:  3 destroyers of the L-class, 2 corvettes, 3 escort vessels (fishing trawlers), 10 escorted vessels, mainly coastal steamers up to 1500 GRT.  Among them 1 tanker of 6000 GRT, 1 three masted schooner and a motor sailer.  A fighter aircraft above the convoy.  
    13.30 BF 2517 Turned away, because a corvette ran towards the boat at target angle 0°.  For the small convoy a dammed strong escort.  Closing is not possible any longer, even though the convoy proceeds at only 5 knots (estimated).  
           
           
Sun and Moon Data 17.07.41
Sun and Moon Data 18.07.41
 
- 4 -
 
           
           
           
    continued      
    18.07.41   Convoy including escort vessels had barrage balloons deployed.  Balloons approximately 300 meters high.  
        Convoy ran on general course 300° towards Land's End.  
    14.30   Convoy out of sight.  
    16.00 BF 2439    
    20.00 BF 2439    
    23.00   Radio Message to "U-141":  On 19 July, about 05.00 hours a convoy will pass Land's End from the north to the east.  
                                                                       B.d.U.  
    24.00 BF 2517 Surfaced.  
      Weather:  SW 2, Sea 1-2, 10/10, Vis. good    
           
    19.07.41 Mount's Bay    
    00.10   Abeam to port Morse signal FR with a red lamp in several groups.  
    03.40   Lizzard beacon is on.  Flash with 3 second recurrence.  
    03.44   Beacon extinguished.  
        Aircraft with set lights over Mount's Bay.  
    03.55 BF 2515 Crash dive for destroyer, which ran towards the boat in target angle 0°.  Was unseen.  
    04.20 BF 2515 Surfaced.  
      Weather:  SW 3, Sea 3, 9/10, Vis. good    
    06.00 BF 2517 Dived.  
    08.00 BF 2517 Reported convoy was not met.  
    12.00 BF 2515 Day's run:  Surfaced          12 nm  
                         Submerged      36 nm  
                         Total                48 nm  
                                                                
        Because the visibility is very good and we are close under land ventilating the boat is not possible.  Up to now no traffic except for a few small fishing cutters.  
        At periscope depth back and forth in position south of Lizzard.  
    13.40 BF 2518 A strongly escorted convoy in sight bearing 300°T, had an easterly course.  
        Distinguished:  Approximately 10 escort vessels among them 3 destroyers of the L-class (L 46), torpedo boats and fishing trawlers. Convoy consists of 9 very small steamers and 1 tanker of 6000 GRT.  
        Because there were no valuable targets and a destroyer ran in at target angle 0° at high speed, turned away.  Nearly all vessels had barrage balloons set.  
        Enemy speed 6 knots.  
    14.30 BF 2518 Convoy out of sight.  
    16.00 BF 2518    
           
Sun and Moon Data 18.07.41
Sun and Moon Data 19.07.41
 
- 5 -
 
           
           
           
    continued      
    19.07.41      
    18.45 BF 2517 Sound bearing in 330°T. Destroyer of the L-class distinguished, zigzagging to the east at high speed.  
    20.00 BF 2517 Set off from the coast to surface earlier.  
        Independent traffic not determined so far.  
    23.06 BF 2541 Surfaced.  
    24.00 BF 2544    
      Weather:  NW 2, Sea 1-2, 1/10, Vis. good    
           
    20.07.41 Mount's Bay    
    02.50 BF 2541 Crash dive for low flying aircraft.  Had set lights.  Aircraft traffic observed over land.  
    03.20   Surfaced.  
        Back and forth in position again close under the coast.  Charged the battery, filled air bottles.  
    04.00 BF 2518    
    06.25 BF 2544 Dived.  
    08.00 BF 2542    
    11.00 BF 2518 Convoy in sight bearing 30°T.  Range 5000 meters.  
        Recognized:  1 destroyer, 3 torpedo boats, 3 escort vessels (fishing trawlers), several fighter aircraft, 3 small steamers and 2 tankers of 6000 GRT.  While attempting to close, the periscope or boat shadow was probably seen by an aircraft.  Aircraft flew around close-by the periscope.  Moved off.  About from . . .  
    11.30   destroyer propeller sounds bearing 350°T and 20°T, which quickly came closer.  Listening pursuit and brief ineffective S-gear locating.  
    13.30 BF 2518 Last sound bearing.  
    12.00 BF 2518 Day's run:  Surfaced          35 nm  
      Weather:  NW 2, Sea 1-2, 2/10, Vis. very good                  Submerged      40 nm  
                       Total                75 nm  
                                                                
    16.00 BF 2517  
    20.00 BF 2462    
    21.55   Surfaced.  Transit around Scilly's to Land's End.  
        Because up to now day submerged attack has not been possible, and there is no traffic at night at Lizzard, will attempt to attack convoys at night at Land's End.  
    22.00   Radio Message from B.d.U. to "U-141"  
        In the period from 21 July 16.00 hours to 22 July 06.00 hours at Land's End 1 from north to east and 1 reverse running convoy is expected.    B.d.U.  
    24.00 BF 2453    
      Weather:  NW 1-2, Sea 1, 8/10, Vis. good    
           
           
Sun and Moon Data 19.07.41
Sun and Moon Data 20.07.41
 
- 6 -
 
           
           
           
           
    21.07.41 Isles of Scilly    
    04.00 BF 2413    
    06.10 BF 2421 Crash dive for aircraft, was unseen.  
        Proceeded submerged.  
    08.00 BF 2188    
    09.25 BF 2188 Convoy in sight bearing 100°T, 6000 meters away.  Course 220°. Distinguished:  1 destroyer, 6 small steamers, several fighter aircraft.  Could not attack, forced to submerge by aircraft, additionally range too great.  Was probably not seen by the aircraft because no listening pursuit was initiated.  Back and forth in position on various course off Land's End.  
    12.00 BF 2197 Day's run:  Surfaced          64 nm  
      Weather:  SW 1, light flat W-Swell, 1/10, Vis. good                  Submerged      32 nm  
                       Total                96 nm  
                                                                
    15.15   Surfaced.  Ventilated the boat.  Coast is vaguely seen in the haze.  The daily, many-hour submerged cruise gets tiring over time.  
    15.30   Dived.  Also now aircraft everywhere.  
    16.00 BF 2197    
    16.33   Patrol vessel (fishing trawler) with barrage balloon course 60° passed close by.  
    20.00 BF 2186    
    23.00   Surfaced.  
    23.12 BF 2431 Crash dive for aircraft abeam.  
    23.45   Surfaced.  
    24.00 BF 2431    
      Weather:  Wind 0, Sea 0, 4/10, Vis. good    
           
    22.07.41 Isles of Scilly    
    04.00 BF 2189 Up to now nothing is seen of the reported convoys.  
    06.00 BF 2189 Since no traffic is detected, I believe that  neither independents nor convoys proceed by night.  Because by day there are only the strongest escorted convoys composed of small vessels, I believe the ful commitment of the boat is not sensible here due to attack limitations.  Therefore I have decided to shift my operations area to the North Channel.  
    07.20 BF 2187 Crash dive for aircraft bearing 350°T.  
    08.00 BF 2179    
    09.35   Surfaced.  
    09.45 BF 2179 Crash dive for aircraft bearing 240°T.  
    10.35   Surfaced.  
           
           
           
Sun and Moon Data 21.07.41
Sun and Moon Data 22.07.41
 
- 7 -
 
           
           
           
    continued      
    22.07.41      
    12.00 BF 1399 Day's run:  Surfaced          65 nm  
      Weather:  NE 1, Sea 0, 3/10, Vis. good                  Submerged      34 nm  
                       Total                99 nm  
                                                                
    16.00 BF 1375 Transit to the west.  
    20.00 BF 1283 Short Signal to B.d.U.:  
        Shifting operations area to AM center part.  
                                                                       - U-141 -  
        Despite sending twice the Signal was not confirmed.  
    24.00 BF 1271    
      Weather:  NE 2, Sea 1, 6/10, Vis. very good    
           
    23.07.41 South of Ireland    
    04.00 BF 1151    
    08.00 BE 3331    
      Weather:  SW 1, flat Swell, 9/10, Vis. very good    
    10.45 AM 7967 Crash dive for aircraft bearing 90°T.  
    12.00 AM 7967 Day's run:  Surfaced          220 nm  
      Weather:  SW 1, flat Swell, 9/10, Vis. very good                  Submerged          5 nm  
                       Total                225 nm  
                                                                
    14.30   Surfaced.  
    16.00 AM 7937    
    20.00 AM 7667    
    22.00   Radio Message to B.d.U.:  Shifting operations area to AM center part.    - U-141 -  
    24.00 AM 7394    
      Weather: SW 3, Sea 3, 9/10, Vis. good    
           
    24.07.41 West of Ireland    
    04.00 AM 7332    
    08.00 AM 4962    
      Weather:  S 5-6, long high Swell, 10/10, occasional rain, Vis. moderate    
    12.00 AM 4933 Day's run:  Surfaced          194 nm  
      Weather:  S 5-6, high long Swell, 10/10, Vis. moderate                  Submerged          4 nm  
                       Total                198 nm  
                                                                
    16.00 AM 5473  
    20.00 AM 5461    
           
           
Sun and Moon Data 22.07.41
Sun and Moon Data 23.07.41
Sun and Moon Data 24.07.41
 
- 8 -
 
           
           
           
    continued      
    24.07.41      
    24.00 AM 5278 In English warning area.  
      Weather:  S 2, flat long Swell, 10/10, Vis. medium    
           
    25.07.41 West of the North Channel    
    04.00 AM 5258 Back and forth in position on various courses in the English restricted area.  
    08.00 AM 5522    
      Weather:  SW 1, light Swell, 9/10, Vis. good    
    08.15   Aircraft ahead to port.  
    08.25 AM 5522 Crash dive for aircraft bearing 90°T, was unseen.  
    12.00 AM 5525 Day's run:  Surfaced         133 nm  
                         Submerged       10 nm  
                         Total               143 nm  
                                                                
    12.47   Surfaced.  
    16.00 AM 5526    
    20.00 AM 5286    
      Weather:  W 1, Sea 0, 8/10, Vis. very good    
    20.05 AM 5286 Smoke cloud in sight bearing 0°T.  Closed at high speed.  
    21.50   Turned away because a patrol vessel (fishing trawler) was distinguished.  Ran from on course 180°.  
    24.00 AM 5258    
      Weather:  W 1, Sea 0, 8/10, Vis. very good    
           
    26.07.41 West of the North Channel.    
    00.10 AM 5258 Smoke cloud in sight to port bearing 90°.  Turned towards.  
    00.50 AM 5282 Made out a convoy, approximate course 250°.  About 20 vessels in 4-5 columns.  Enemy ran at low speed.  Tried to maneuver ahead at GF on the dark SW horizon and wait for greater darkness.  In so doing the enemy came up slowly.  Meanwhile determined that there were 4-5 columns with at least 40 large, some very large ships.  Ships were partially loaded.  Ahead of the convoy 3 destroyers, on the port side 2 destroyers, screen to the starboard side and aft not distinguished.  Within the convoy columns individual escort vessels, probably corvettes and fishing trawlers.  
    01.46 AM 5276 To Action Stations, all tubes ready.  Ran in.  Because a destroyer came towards the boat at target angle 0°, moved off and maneuvered ahead again.  
           
           
           
Sun and Moon Data 24.07.41
Sun and Moon Data 25.07.41
Sun and Moon Data 26.07.41
 
- 9 -
 
           
           
           
    continued      
    26.07.41      
    02.25 AM 5275 Enemy runs on course 250°, speed 7-8 knots.  
        Ran in.  
        Radio Message report not yet sent because striving for exact data.  
    03.28 AM 5276 Sweeper passed the boat to port at a distance of 600 meters.  Tube II fired at a large 6000 GRT steamer proceeding in ballast in the 2nd column with bow left, target angle 50°, speed 8 knots, range 1200 meters, depth 4 meters.  
        After the shot turned away over the starboard bow because a destroyer approached at a sharp target angle.  
        Ran off for a moment and then turned back again.  
    03.35 AM 5276 Fired tube I on a steamer with 4 masts and 1 smokestack of at least 10000 GRT. Steamer was positioned in the first column.  Bow left, target angle 90°, speed 7 knots, range 600 meters, depth 4 meters.  
        Tube III fired at a steamer of the 3rd column of about 5000-6000 GRT.  Bow left, target angle 90°, speed 7 knots, range 1000 meters, depth 4 meters.  
        1st hit on a 6000 GRT steamer of the 2nd column.  Crew went into the boats.  Several lights on deck which moved to the center of the ship.  Later noticed a 2nd detonation, probably a boiler explosion.  Sinking not observed because other ships covered the target.  
        2nd hit center on 4-master which quickly heeled over to starboard.  Final sinking not observed, however likely.  
        3rd hit aft on a steamer of the 3rd column.  Normal explosion column, afterwards an enormous detonation, the ship was engulfed in a single gray explosion cloud.  Steamer flew into the air.  
        After taking the 3rd shot turned away hard to port.  Aft destroyer of the flank screen was quite close to the boat.  After the first hit white signal rockets were fired from the hit steamer.  Destroyer, which had turned towards us at target angle 0° turned away again.  At the 3rd hit the destroyer shot Star Shells.  Because the destroyer was a ways off attempted to moved off on the surface on course 160°.  When the destroyer turned towards the boat again, crash dived.  
    03.45 AM 5276 Went to depth T = 75 meters [actual depth 150 meters] in 5 minutes.  
    03.50   8 depth charges over the boat.  Depth setting at least T = 60 meters [120 meters].  Severe concussion in the boat, all depth meters failed, boat remained tight.  
        Up to 10.00 hours there followeddepth charge series at only intervals of 1/2 - 1 hours, which were always very close to the boat.  2-3 enemy vessels stuck with the boat.  Strong S-gear locating and depth sounding with small explosive charges.  All efforts to get away from the locating were unsuccessful.  The boat drove between T = 75 and T = 100 meters [150 and 200 meters].  From the avoidance maneuvers and rising of  
           
           
           
Sun and Moon Data 26.07.41
 
- 10 -
 
           
           
           
    continued      
    26.07.41   the boat to T = 60 meters [120 meters], carried out to pump, the battery was strongly discharged.  After each pumping there followed a depth charge attack.  My estimate was that the depth charges were set deeper than T = 60 meters [120 meters], at T = 80-90 meters [160-180 meters] the boat was so badly shaken that switches and fuses failed.  
        In order not to be starved [exhaust the battery], I want to put the boat on the bottom at a suitable location.  Since pursuit has not diminished and evasive maneuvers are not working, moved off in 140° at T = 80-90 meters [160-180 meters].  
        Despite the severe attack the boat remained very tight.  Major failures were not determined.  A few frames are lightly bent.  Battery was nearly empty so the boat could only be held [at depth] by blowing.  The question, whether we would reach bottom in time or would have to blow and abandon ship, was more grueling than any depth charge attacks.  The crew, which was perfectly clear as to the situation, held up excellently.  The boat was ready for destruction.  In particular, the radio men served excellently, calmly giving their listening reports while making repeated repairs to the failed G.H.G.  
    10.30 AM 5287 lower-left The last depth charges fell exactly over the boat.  Thereafter continual locating and blind runs.  
        From . . .  
    11.30   propeller sounds were fainter and more distant temporarily.  It seemed that the enemy had lost us on the locating gear, because the water depth was slowly decreasing.  The morale rose.  The battery was nearly empty.  
    12.05 AM 5521 Grounded in T = 95 meters [190 meters].  The boat was set on the bottom at this depth because the motors can barely make any RPM.  I now intend to remain on the bottom only until darkness, in the hope that the enemy has given up the search.  Except for the bottom watch all men rest with potassium cartridges.  120 kg of compressed air ensured a safe rise from the bottom.   
        Listening pursuit, S-gear locating and depth charge series continued in the immediate vicinity of the boat.  Boat was no longer overrun.  Therefore the enemy had lost contact on the boat with listening gear, however continued to search.  
    16.00 - 21.30   Aircraft bombs very close, further depth charge series at greater range.  The boat lies very well on the bottom.  
    23.30   Last sound bearing, very far away.  
                                                                
           
           
Sun and Moon Data 26.07.41
 
- 11 -
 
           
           
           
           
    27.07.41      
    00.00 West of the North Channel All men are issued life-vests and rescue gear.  I intend to blow at 00.30 hours.  
    00.15   All men in the control room.  A short briefing on the situation and behavior, if on surfacing, the boat is caught by the enemy and must be sunk.  A second lying on the bottom is not possible because there is not enough air for a second blowing.  
    00.35   Blew.  
    00.45   Boat was raised from the bottom and rose quickly.  
    00.55 Weather:  Wind calm, flat sea, 7/10, quite dark, Vis. good After 10 minutes, the boat surfaced.  Nothing is seen of the enemy.  Moved off on westerly courses.  For the present the boat is not clear to dive because the battery is completely exhausted and there is only 30 kg of compressed air remaining.  
    01.30   2-engined aircraft 300 meters above us, we were unseen.  
    02.00   Radio Message from B.d.U. to U-141:  
        English aircraft reported on 26 July 1941 at 12.00 hours a suspicious oil slick in square AM 5521.  
        The position matches ours exactly, probably the external tanks leak.  
    02.00   Star shell bearing 230°T.  
    02.30 AM 5516 Enormous oil slick on the water surface.  
    03.30 AM 5515 Parachute flare bearing 180°T, the enemy is still searching.  
    04.00 AM 5514    
      Weather:  SW 2, Sea 1, 10/10, Vis. good    
    05.15 AM 5435 2 patrol vessels bearing 330°T.  Moved off to the SW.  
    08.00 AM 5428 Battery is half charged, boat is ready to dive again.  Since lightness strong air surveillance.  
    08.25 AM 5427 Crash dive for 4 aircraft.  
    09.41   Surfaced.  
    10.41 AM 5427 Crash dive for an aircraft astern.  
    11.30   1 aircraft bomb.  
    12.00 AM 5419 Day's run:  Surfaced          56 nm, Submerged         5 nm  
      Weather:  SW 2, Sea 1, 10/10, Vis. good                                       Total:  61 nm  
                                                              
        Up to now no serious damage was detected except for the oil trace.  The boat held up wonderfully.  Failed fuses and minor damage were nearly all quickly repaired.  Fire control system and engine telegraphs remain out of service, cannot  
           
           
Sun and Moon Data 27.07.41
 
- 12 -
 
           
           
           
    continued      
    27.07.41      
        be repaired with on board means.  Radios were temporarily out of service because of water entry in the antenna ducts.  
        I intend to move off to the west, to bring the boat completely in order and give the crew some relaxation and recovery if possible.  
    14.48 AM 5419 7 aircraft bombs far off.  
    16.00 AM 5419    
    17.25   Surfaced.  
    20.00 AM 4663    
      Weather:  SW 3-4, Sea 3, 10/10, fog, Vis. bad    
    24.00 AM 4651    
      Weather:  NNW 6-7, Sea 5, 10/10, fog, Vis. bad                                                         
         
    28.07.41      
    04.00 AM 4532    
    08.00 AM 4281 Determined that the exhaust gas valves are probably out of service.  After grinding the outer exhaust gas valves leak very heavily while cruising on the surface.  Intend a test dive in the afternoon.  
    12.00 AM 4163 Day's run:  Surfaced        137 nm  
      Weather:  WNW 3, short Swell, 9/10, Vis. good                  Submerged        4 nm  
                       Total              141 nm  
    15.10 AM 4122 Test dive to T = 25 meters.  Determined that the outer exhaust gas valves leak completely.  Large amounts of water entered, full outboard pressure at the inner exhaust gas valve and drain valves.  Boat is only cleared for diving to shallow depths.  
    16.10 AM 4122 Surfaced.  Substantial oil trace determined.  Therefore I decided to break off the patrol.  Came to southerly course.  
    20.00 AM 4181 Radio Message transmitter is in service again.  
    22.00   Radio Message to B.d.U.:  
        26 July 03.00 hours outbound convoy 5275, 8 knots, course 270°, 40 ships, strong escort.  20-hour depth charge pursuit.  3 steamers 21000 GRT.  Main exhaust gas valve leaks.  2 Etos.  Request return transit Lorient.    "U-141"  
    23.00   Radio Message to "U-141"  
        "U-141" begin return transit to Lorient.    B.d.U.  
    24.00 AM 4434    
      Weather:  NW 4, Sea 3, 10/10, Vis. good                                                         
           
           
Sun and Moon Data 27.07.41
Sun and Moon Data 28.07.41
 
- 13 -
 
           
           
           
           
    29.07.41 West of Ireland    
    01.00   Radio Message to "U-141"  
        "U-141" Bravo!    B.d.U.  
        Great joy all over at recognition.  
    04.00 AM 4491    
    08.00 AM 4737 Radio Message:   
        Return harbors are:  Brest for "U-561",  
                                       Lorient for "U-68 and "U-141",  
                                       Nazaire for "U-203".    B.d.U.  
    08.43 AM 4761 Dived.  Worked on the torpedoes.  
    12.30 AM 4767 Day's run:  Surfaced       =   174 nm  
      WNW 5, Sea 4, 6/10, Vis. good                  Submerged   =        8 nm  
                       Total             =    182 nm  
    16.00 AM 7137    
    20.00 AM 7197    
    24.00 AM 7467    
      Weather:  W 3-4, Sea 3, 10/10, Vis. good                                                         
    30.07.41 Southwest of Ireland    
    04.00 AM 7761    
    06.40 AM 791 Came to course 130°.  
    08.00 BE 3133    
    12.00 BE 3249 Day's run:  Surfaced      =   230 nm  
      Weather:  NW 4, Sea 3, 5/10, Vis. good                  Submerged  =       1 nm  
                       Total                 231 nm  
    16.00 BE 3538    
    20.00 BE 3657    
    24.00 BF 1477 Short Signal to B.d.U.:  Position 36 hours off return harbor.  
      Weather:  NNW 4, Sea 4, 7/10, Vis. medium                                                                B.d.U.  
                                                              
    31.07.41 Bay of Biscay    
    04.00 BF 1756    
    08.00 BF 4212    
    09.30 BF 4216 Crash dive for aircraft.  2 aircraft bombs in the vicinity.  
    10.30   Surfaced.  
    10.45 BF 4227 Crash dive for aircraft.  
        Radio Message from B.d.U.:  The following convoys will be at Point L 2 on 1 August:  
        08.00 hours for "U-68" and 12.00 hours for "U-141"  
                                                                       B.d.U.  
    12.00 BF 4228    
           
Sun and Moon Data 29.07.41
Sun and Moon Data 30.07.41
Sun and Moon Data 31.07.41
 
- 14 -
 
           
           
           
    continued      
    31.07.41      
    12.00 BF 4228 Day's run:  Surfaced       =  220 nm  
                         Submerged   =     10 nm  
                         Total             =  230 nm  
    13.05 Weather:  NNW 4-5, Sea 4, 8/10, Vis. good Surfaced.  
    13.50 BF 4229 Crash dive for aircraft.  
    15.00   Surfaced.  
    15.40 BF 4264 Crash dive for aircraft.  
    16.45   Surfaced.  
    18.50 BF 4344 Crash dive for aircraft.  
    19.20   Surfaced.  
    20.00 BF 4345    
    24.00 Weather:  N 3, Sea 3, 8/10, Vis. good                                                         
    01.08.41 Bay of Biscay Transit to Lorient.  
    14.15   Taken in convoy.  
    16.00   Released escort.  
    16.30 Lorient Made fast.  
        Day's run:  Surfaced       =   240 nm  
                         Submerged   =     10 nm  
                         Total             =   250 nm  
                                        = = = = = = = = = =  
           
                                                                
           
      From 14.7. - 1.8.41 total nautical miles covered:  
                         Surfaced       =  2282 nm  
                         Submerged   =    241 nm  
                         Total            =   2523 nm  
                                             = = = = = =  
           
           
           
           
           
           
           
Sun and Moon Data 31.07.41
Sun and Moon Data 01.08.41
 
- 15 -
 
           
           
           
           
           
                               Special War Experiences:  
                           = = = = = = = = = = = = = = =  
   
Isles of Scilly.    
  1.) Each day a convoy, either from east to west or vice versa.  Traffic only by day.  No independents.  In convoys medium to small vessels.
  2.) Very strong escort of 3-5 destroyers, corvettes, torpedo boats and fishing trawlers.  Escort by fighter and bomber aircraft.  S-gear.  Each vessel of the convoy including escorts carries barrage balloons.
  3.) Convoys passed at a distance of 2-3 nm from the coast, ran over own barrier between Scilly's - Land's End and Scilly's - Lizzard.
  4.) Bearing 200°T, 3 nm from Lizzard black spar lighted buoy.  Identifier:  repeats every 10 seconds.
  5.) Attack against a convoy in these shallow waters and with the strong escort promises only slight tonnage at the same time with full commitment of the boat.
     
North Channel.    
  1.) During depth charge pursuit on 26 July the boat  held well at depth up to T = 100 meters. [200 meters]
    It was impossible to pump at depths over T = 65 meters. [130 meters]
    Usable means of pumping at great depths must be established.
  2.) Setting for depth charges were at least T = 65 meters [130 meters], probably still deeper.
     
    During the outbound and inbound transit the boat was often hunted in the in the area of the French coast by English aircraft.  At the same time none of our own aircraft were noted!
                                                          
                                          Oberleutnant zur See and Kommandant
 
           
           
           
           
           
           
           
           
           
 

 

     
     
 

Comments of the B.d.U.  :

 
     
 

                An outstanding patrol.  The Kommandant exhausted all available possibilities in the attack as well as during pursuit, and so achieved success and brought the boat back home well.

 
     
     
   

For the Befehlshabers der Unterseeboote

 
   
The Chief of the Operations Department.
 
 
                           
     
 


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