The Old Man 
Join Date: Mar 2010
Location: Frankfurt, Germany
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U 113 (IXC) - 4th War Patrol - Two more tankers fall
Quote:
Originally Posted by Kapitän
Started new career in August 2019 to commemorate the beginning of WWII, 80 years before ...
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Monday, 27 April 1942 - Lesser Antilles -
0025 - O₂ = 20%.
0425 - Qu.6455ED -
0545 - O₂ = 19%. Stopping Silent Running.
0855 - Sunrise.
0923 - T=20. O₂ = 18%.
0930 - Surfaced after 11h 30min. and 33.6sm.
0933 - Boat ventilated.
0935 - Charging Batteries (7700Ah).
Port-Diesel, Propulsion 396RPM/11kn; Stbd.-Diesel, Charging 496RPM.
1135 - Batteries charges => 2h for 2300Ah.
2xH.F.-Ahead/14kn.
1200 - Qu.6728ED - Days Run: 132.0sm - ↗ 84.1sm (7h 41') - ↘ 47.9sm (16h 19').
179cbm (2cbm/24h). Battery 10000Ah. 15+2 Torpedoes. 10.5cm: 26xSpG, 28xLkG. On course 180°. Weather and Sea unchanged since 26 April, 1600h.
1235 - It's beginning to rain, wind and sea increasing and shifting west and in due course north, poor visibility.
1305 - Qu.6755ED - SW2/2, overcast, rain, poor visibility, <1000mb.
1735 - Qu.9155ED - N4/3, overcast, rain, poor visibility, <1000mb.
2103 - Sundown. Weather and Sea unchanged since 1700h.
2115 - Diving for submerged cruise at A-20.
2122 - A-20, 135rpm/3kn, Silent Running.
2353 - O₂ = 20%.
Cmdr.: I suspect, that B.d.U. sent the first status and position request today.
Boat operating acc. Op.-Order as per F.T.0907/23.
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Started new career in August 2019 to commemorate the beginning of WWII, 80 years before ...
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Tuesday, 28 April 1942 - North of Venezuela -
0125 - Qu.9455ED - On new course 135°.
0154 - Sound contact with steamer bearing 260°, E=21000. on course 147°, slow speed.
0159 - Second sound contact with steamer bearing 259°. E=20000, on course 147°, slow speed.
The steamers seem to be running next to each other and heading toward Port-of-Spain.
0207 - T=20.
0208 - S-Tiefe. It stopped raining but is very foggy.
0210 - Surfaced after 4h 55min. and 14.3sm.
N4/3, overcast, fog, visibility ~600m, <1000mb.
0214 - Boat ventilated.
0220 - On new course 72°. 2xH.F.-Ahead. "Maneuver Stations!".
0255 - Diving to T=20 for sound check.
Steamers now in keel-line, bearing 305°, on course 147°, E=5000. Picking up a second sound contact of a warship, bearing 68°, E=20000, running away at high speed, in general direction toward Port-of-Spain.
0300 - Surfaced directly from T=20, after 5 min. and 0.3sm.
0310 - "Battle Stations!". Flodding tubes II&III. Speed 1.6kn. Preparing boat for surface attack according B.d.U.-Standing Order No.302.
Lead tanker comes into sight through the fog, visibility about 600m. Is an empty Standard Tanker of 8286ts.
0325 - Qu.9464ED - Salvo Shot with tubes II&III: G7a/G7H (K-a/AZ); Running depth 3.0m; Vt30; Angle of divergence 1.5°; Own course 72°; Own speed 1.6kn ahead; Shooter: Ltnt.z.S & I.W.O. Rainer SCHEUFLER.
Target ship: Empty U.S.A. Standard Tanker of 8286ts, draught 5.5m.
Target course 147°; Target distance 500m; Target angle green91°; Target speed 5kn; Firing angle α 001°.
Closing tubes II&III.
Tube II understeers amidships, Tube III hits amidships but fails to detonate!
0326 - Flooding tubes I&IV.
- Qu.9464ED - Salvo Shot with tubes I&IV: G7e/G7H (K-b/AZ); Running depth 3.0m; Vt30; Angle of divergence 1.5°; Own course 72°; Own speed 1.6kn ahead; Shooter: Ltnt.z.S & I.W.O. Rainer SCHEUFLER.
Target ship: Empty U.S.A. Standard Tanker of 8286ts, draught 5.5m.
Target course 147°; Target distance 550m; Target angle green120°; Target speed 5kn; Firing angle α 018°.
Closing tubes I&IV.
Both torpedoes are hits! The tanker explodes and sinks after 1-2min.!
In the meanwhile the pos.2 tanker comes into sight. It is a Supply Tanker of 2555ts. Turning boat hard to stbd. and 2xH.F., to bring the stern tubes to bear.
0330 - On course 241°, speed 1.6kn. Flooding tubes V&VI.
0331 - Qu.9464ED - Salvo Shot with tubes V&VI: G7e/G7H (K-b/AZ); Running depth 3.0m; Vt30; Angle of divergence 1.5°; Own course 241°; Own speed 1.6kn ahead; Shooter: Ltnt.z.S & I.W.O. Rainer SCHEUFLER.
Target ship: U.S.A. Supply Tanker of 2555ts, draught 6.0m.
Target course 147°, zig-zagging; Target distance 700m; Target angle green82°; Target speed 4kn; Firing angle α 011°.
Closing tubes V&VI.
Both torpedoes are hits! The tanker explodes in a huge ball of fire, immediately after tube V hits, even before tube VI hits. Debris are flying through the air, as the tanker sinks within mere seconds. The flames of the cargo that was set on fire, linger on the ocean surface for 2-3 minutes after the sinking.
Running towards the sinking positions, which are very close to each other. Questioning and supplying 3 survivors in 1 boat and 16 survivors in 4 boats.
0400 - Running off at high speed on a southerly heading. "Dismissed from Battle Stations!".
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