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Old 07-07-23, 04:37 AM   #11
Kapitän
The Old Man
 
Join Date: Mar 2010
Location: Frankfurt, Germany
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Default U 115 - First War Patrol (2nd leg) - Completed Patrol Objective #4

Quote:
Originally Posted by Kapitän View Post
Started new career in August 2019 to commemorate the beginning of WWII, 80 years before ...

+++++++

U 115
- KTB -
First War Patrol
(17th war patrol overall)

Friday, 25 June 1943 - West of the Cape of Good Hope -

- continued from 25 June, 1209 -

1215 - Incoming Radio Reports:

From O.K.W.:
a) On 24 June, RAF bombers attacked Elberfeld in the Ruhr region.
b) Commanding officer of the 4th Group of the Nachtjagdgeschwader 5 wing, Heinrich Prinz zu Sayn-Wittgenstein flew the Bf 110 nightfighter for the first time, discovered technical issues, and returned to flying his usual Ju 88 aircraft, in which he shot down four British Lancaster bombers. His victories now stand at 35.

From B.d.U.:
a) To all boats: Status report about development of new boat type XXI and Walter boats.
b) As a result of the last traffic report the Cape Town boats at present refueling from the tanker "Schliemann" are ordered on 23 June to take up position in the following operational areas: U 178: western half, U 196: eastern half of KE. Center point : narrows of Mozambique channel. U 198: northern half, U 197 southern half of area off Durban, depth 800 sea miles. U 177: area round KQ 92, depth 400 sea miles. (S. of Madagascar), U 181: area round KG 83, depth 400 sea miles (Mauritius Islands). U 115: Continue to supply point acc. Op.-Orders. All boats will be informed of the presumed traffic situation in their areas.

1323 - Sunrise. Weather and Sea unchanged in 38.5h.

1827 - Qu.8315GR top center left - Magic Eye Detection. Shortly after, a Catalina in 297°true, E=9000, is positioned in Qu.8311GR bottom left, on course SSW and turns toward the boat in 275°true and E=9000.

1829 - "ALARM!". At T=55, 2 bombs and at A-Meter 1 more. No damages. Suspect that the A/C was not fitted with radar, but sighted the boats keel water.

1842 - Setting for Reception Depth.

1851 - T=20. Battery 97.0%, Compressed Air Supply 285Atü, CO₂ 1.1%.

1859 - Surfaced from S-Tiefe after 30min. and 1.6nm. - Weather and Sea unchanged.

1902 - Boat ventilated and Compressed Air Supply filled. 2x1/3-Ahead, 285RPM, 10kn.

2002 - Qu.8319GR top center left - FuMB-Detection in 28°true, E=13000. Giving order to dive.

2003 - Right during the watch change, airplane (is a Wellington) in 28°true, E=9000, direct approach out of the sun. "ALARM!". During the diving process no bombs.

2005 - 1 Wabo and 3 more until 2010 - no damages.

2017 - Setting for Reception Depth.

2026 - T=20. Battery 97.0%, Compressed Air Supply 290Atü, CO₂ 1.1%.

2032 - Surfaced from S-Tiefe after 30min. and 1.5nm. - Weather and Sea unchanged.

2036 - Boat ventilated and Compressed Air Supply filled. 2x1/3-Ahead, 285RPM, 10kn and at 2041 - 2xH.F.

2050 - Qu.8319GR bottom right - Airplane in 005°true, E=5300, direct approach out of the sun, it's a Hudson or Ventura (No FuMB/Magic Eye Detection). Evading with A.K. hard to port. 1 bomb is dropped wide to port - no damages. Airplane flies off on course SSW, boat going back to general course.

2057 - Qu.8319GR bottom right - Airplane in 255°true, E=6700, direct approach, it's a Wellington (No FuMB/Magic Eye Detection). Evading with A.K. hard to stbd., machine-gun fire.

2058 - After the fly-over, "ALARM!". Airplane turns around at E=3400. At T=40, 2 Wabos behind the boat - no damages.

2101 - At A-Meter another 2 Wabos - no damages. Boat going back to general course.

2112 - Setting for Reception Depth.

2121 - T=20. Battery 94.0%, Compressed Air Supply 285Atü, CO₂ 1.1%.

2128 - Surfaced from S-Tiefe after 30min. and 1.6nm. - Weather and Sea unchanged.

2132 - Boat ventilated and Compressed Air Supply filled. 2x1/3-Ahead, 285RPM, 10kn.

2133 - Qu.8351GR top left - Airplane in 21°true, E=8100, direct approach, it's a Sunderland (No FuMB/Magic Eye Detection).

2134 - "ALARM!". At T=35, 1 Wabo wide to Stbd. - no damages.

2138 - At A-Meter, 2 Wabos and again at 2139, 3 Wabos, and another 2 Wabos at 2141 - no damages.

2215 - At A-20. Setting for Reception Depth.

2222 - T=20. Battery 91.4%, Compressed Air Supply 270Atü, CO₂ 1.2%.

2228 - S-Tiefe. A Sunderland can be seen in 250°true, E=9800, on course 24°, is out of sight in 336°true, E=9700 (position is in Qu.8327GR bottom left).

2234 - Surfaced after 1h and 2.9nm. - Weather and Sea unchanged.

2235 - Boat ventilated.

2244 - Compressed Air Supply filled. 2x1/3-Ahead, 285RPM, 10kn, and at 2250, 2xH.F.

2302 - Qu.8351GR bottom right - FuMB-Detection in 215°true, E=14500. Giving the order to dive. Before closing the Conning Tower Hatch, can see a approaching in 215°true, E=8300.

At T=25, 1 Wabo behind the boat and at T=45, 1 more Wabo - no damages.

At A-10, 6 Wabos - no damges. Boat sinks to A+20 and can only be brought back up to A-Meter with 135rpm.

2307 - Sundown.

2333 - Back to Reception Depth. Battery 90%, Compressed Air Supply 290Atü, CO₂ 1.1%.

2341 - S-Tiefe. A airplane can be seen in 175°true, crosses the bow of the boat at short distance on course NNE.

2347 - Surfaced after 45' and 2.2nm. - Weather and Sea unchanged.

2350 - Boat ventilated and Compressed Air Supply filled. 2x1/3-Ahead, 285RPM, 10kn, and at 2255, 2xH.F.

RST
KorvKpt.& Cmdr. U 115
Started new career in August 2019 to commemorate the beginning of WWII, 80 years before ...

+++++++

U 115
- KTB -
First War Patrol
(17th war patrol overall)
Saturday, 26 June 1943 - South of the Cape of Good Hope -

0935 - Qu.9491GR - Course 113°.

1100 - Qu.9496GR - Course 123°; 1/3-Ahead.

1050 - Qu.9496GR - Reached Control Point No.4 (17km from actual position in Qu.9577GR top left).

Cmdr.: We seem to have cleared the enemy air cover zone.

1141 - Qu.9577GR top left - Course 87°; 235RPM/8kn.

1200 - Qu.9577GR - Days Run: 254.3nm - ↗ 244.5nm (20h 45') - ↘ 9.8nm (3h 15')
Total: 9313.0nm (52tg 22h) - ↗ 8917.3nm (46tg 16h 37') - ↘ 395.7nm (6tg 05h 23')
Course 87°; 455cbm (4cbm in 24h); Battery 90%; 2xEtoFat; 8xBold.
SSE4/3, clear, visibility 4.5nm, >1000mb (Weather & Sea unchanged in 61h) - Early Morning Dawn -

1245 - Outgoing F.T.: To B.d.U.:
Reached Control Point 4. Going to supply point acc. Op.-Orders and F.T.1215/25/4307. Much air south of Capetown to Qu.8355GR, Sunderland, Catalina, Wellington and Hudson/Ventura, partially no radar detection, spotlights at night. Still have 2 EtoFat and 455cbm. SSE4/3, clear, scattered clouds, visibility 4-5nm, >1000mb. - RST -

1303 - Qu.9578GR center top - Diving for torpedo maintenance and trial dive.

1309 - T=48. Beginning torpedo maintenance.

1331 - Sunrise.

1400 - Tube V serviced (EtoFat/Pi39H). - Break until 1409 -

1500 - Tube VI serviced (EtoFat/Pi39H).

1510 - Beginning of Trial Dive acc. B.d.U. Standing Orders No.507 and No.308. 145rpm.

1553 - Boat is safe and secure at 2A-Meter.

1555 - Setting for T=20 with 96rpm.

1611 - Reception Depth. Battery 83%, Compressed Air Supply 300Atü, CO₂ 1.5%.

1615 - Qu.9576GR bottom center - Surfaced from S-Tiefe after 3h 12' and 9.1nm. Weather and Sea unchanged.

1620 - Boat ventilated. Charging batteries (83.0%): Stbd.-Diesel Charging 496RPM; Port-Diesel Propulsion 285RPM/8kn.

1755 - Batteries fully charged: 1h 35min. for 17%.

1800 - Testing main diesels acc. B.d.U.-Standing Order No. 510. Running diesels up and back down in 5min. intervals:
- 1/3-Ahead, 285RPM, 10kn/10.0kn
- 2xH.F., 375RPM, 13kn/13.3kn
- Full-Ahead, 455RPM, 16.5kn/16.4kn
- A.K., 496RPM, 18.2kn, from 1815 until 1845.

1900 - 235RPM/8kn.

2255 - Sundown. Weather and Sea unchanged.

RST
KorvKpt.& Cmdr. U 115
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