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Old 03-29-23, 01:46 AM   #370
Kapitän
The Old Man
 
Join Date: Mar 2010
Location: Frankfurt, Germany
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Default Heading toward new base for repairs

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

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

Sunday, 28 March 1943 - Western Approaches -

0432 - Qu.2155BE - Course 180°.

0640 - Morning Dawn.

0800 - Sunrise. Weather and Sea unchanged in 6 days and 10h.

1035 - Qu.2455BE -

1100 - Qu.2458BE center top - Diving for FuMB-Detection (no Magic Eye) in 152°true, E=14000.

1102 - At Reception Depth, sound contact with three warships, relative bearings from 312° to 315°, varrying distances from E=17000 to E=23000, very fast on course SSW; according sound contact positioned in Qu.2483BE left half. Suspect enemy Task Force or U-Hunter Group.

1200 - Qu.2458AL - Days Run: 221.8nm - ↗ 217.5nm (23h 00') - ↘ 4.3nm (1h)
Total: 3274.2 nm (15days 14h 17') - ↗ 3058.4 nm (12days 6h 28') - ↘ 215.8 nm (3days 7h 49')
On course 180°; 423cbm (9cbm in 24h); T=20; Battery 95%; CO₂ 1.2%.

1240 - Surfaced from S-Tiefe after 40min and 2.1nm - since Etmal (Total: 1h 40' and 6.4nm). Weather and Sea unchanged in 6 days and 15h.

1245 - Boat ventilated. Charging batteries as before (95%).

1300 - Outgoing F.T.: To B.d.U.:
26.3., 1539, Alarm for twin-engine A/C in Qu.5682Al center, no bombs. 28.3., 1100, Diving for FuMB-Detection in Qu.2458BE top center. Obtained sound contact with task force or hunter group in Qu.2483BE left half, at high speed on course SSW, at least one capital ship. 423cbm. SSE7/6, medium heavy swell, clear, good visibility, >1000mb. - RST -

1303 - Qu.2482BE center - Diving for FuMB-Detection (no Magic Eye) in 306°true, E=8300. Boat sinks quickly to A+10 and can only be brought up to A-Meter with 1/3-Ahead. No Wabos and no sound contact.

1330 - Setting for Reception Depth.

1336 - T=20.

1338 - Surfaced from S-Tiefe after 35min and 1.9nm.

1342 - Boat ventilated. Charging batteries as before (95%).

1357 - Qu.2485BE top center - Diving for FuMB-Detection (no Magic Eye) in 104°true, E=10000.

1402 - At A-Meter no Wabos and no sound contact.

1427 - Setting for Reception Depth.

1432 - T=20.

1434 - Surfaced from S-Tiefe after 40min and 2nm.

1440 - Boat ventilated. Charging batteries as before (95%).

1444 - Qu.2485BE center bottom - FuMB-Detection (no Magic Eye) in 19°true, E=9400.

1445 - "ALARM!" for A/C approaching from 15°true, E=5000.

1446 - At A-Meter no Wabos and no sound contact. Boat remains submerged.

1605 - Setting for Reception Depth.

1608 - Sound contact with several warships in relative bearings from 17-22°, E=26000. Seems to be the same task force from 1102.

1611 - T=20.

1613 - S-Tiefe. Nothing can be seen. Difficult to maintain boat at S-Tiefe due to the high swell.

1624 - An A/C can be seen in the B-Periscope on the stbd. beam on opposite course. The presence of the Escort Group explains the heavy air patrols in this area.

1630 - Task force comes into sight, consists of an Escort Carrier Baiter Class, 12400ts, and two Light Cruisers (Pos.2, Lightweight Class, 5950ts and Pos.3, Arethusa Class, 5240ts and in keel line, and 7 escorts, on course 41°. Closing on task force at S-Tiefe at A.K. and both periscopes up. "Battle Stations!".

1657 - Flooding bow tubes.

1700 - Qu.2488BE bottom right - Spread Shot with tubes I-IV: T-3/Pi39H (MZ); Angle of divergence 1.5°; Running depth 5m; Vt30; Own course 90°; Own speed 6kn ahead; Target ship: Position 1 Escort Carrier Baiter Class 12400ts, draught 6.7m. Target ship is located in Qu.2489BE bottom left.
Target course 41°; Target distance 4500m; Target angle red132°; Target speed 18kn; Firing angle α 26°.
Weather/Sea: SSE7/6, medium heavy swell, clear, good visibility, >1000mb.
Shooter: KvtKpt. & Cmdr. RST.

After the shot, diving to A+50 and rigging for Silent Running. Throughout the entire process, no detection by the escorts, which at times come verily close to the boat.

All torpedoes are misses. Seems like they all passed between the pos.2 and pos.3 Cruisers.

Cmdr.: In hindsight, it would have been better to turn towards the target with angle red90, set the target speed to the max. speed of the vessel (20kn) and set the Angle of divergence to 3°.

1725 - Setting for Reception Depth.

1733 - T=20.

1735 - S-Tiefe. All clear. Breaking off action, diving deeper for torpedo loading. "Dismissed from Battle Stations!".

1742 - At T=50, on course 137°. Commencing torpedo loading.

1755 - Tubes I and II loaded with T-3/Pi39H(MZ/AZ).

1809 - Tubes III and IV loaded with AtoFAT/Pi-1(G7H/AZ).
Setting for Reception Depth.

1813 - T=20.

1815 - Surfaced from S-Tiefe after 3h 30' and 12.5nm.

1823 - Boat ventilated; Compressed Air Supply filled.
Charging batteries as before (77.8%).

1903 - Qu.2723BE - Course 180°.

2010 - Sundown. Weather and Sea unchanged in 6 days and 22h.

2048 - Qu.2729BE - Batteries charged (2h 25' for 22.2%). 1/3-Ahead.

2105 - Outgoing F.T.: To B.d.U.:
28.3., 1700, 4-spread in heavy sea state missed Escort Carrier in Qu.2488BE bottom right. Carrier part of Escort Group of 2 Light Cruisers and 7 Destroyers. Last position at 1800 in Qu.2489BE bottom left, on course 41°, speed 20kn. Group is protected by strong air cover in Qu.24BE. Continue with outbound transit. Have 11 internal eels and 420cbm. SSE7/6, medium heavy swell, clear, good visibility, >1000mb. - RST -

2305 - F.T.s from B.d.U.:
1) To RST: Go to Bordeaux for repairs. As Operation "Elisabeth" is about to begin, attention is again called to the closing of routes in BF and BE.
2) Intel-Report: Aircraft Carrier USS Ranger (CV-4) arrived at Casco Bay, Maine, U.S.A.
3) OKW-Report: The British 1st Army launched its Offensive in Tunisia. The US 12th Air Force bombed the oil refinery at Livorno, Italy.
4) U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) conducts War Patrol Outfitting in Hamburg.

Cmdr.: We received our new marching orders.

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)

Monday, 29 March 1943 - Western Approaches -

0200 - Clocks set an hour ahead in accordance with Op.-Orders.

0304 - F.T.: from B.d.U.: To U 260:
Cmdr to explain why steamer 7176t was not attacked. Should send copy of attack report in KTB.

0446 - F.T. from U 260: To B.d.U.:
Had to break-off of attack due to weather and setting-in darkness. End of report. - Purkhold -

0630 - Morning Dawn -

0747 - Sunrise. Weather and Sea unchanged in 7 days and 10h.

1200 - Qu.5486BE - Days Run: 185.9nm - ↗ 167.4nm (18h 33') - ↘ 18.5nm (5h 27')
Total: 3460.1 nm (16days 14h 17') - ↗ 3225.8 nm (13days 1h 01') - ↘ 234.3 nm (3days 13h 16')
On course 180°; 417cbm (6cbm in 24h).

2013 - Sundown. Weather and Sea unchanged in 7 days and 22h.

2216 - Qu.8156BE - Course 90°.

F.T. from B.d.U.:
1) OKW-Report:
The Führer orders the construction of large missile launch sites on the French coast.
New Zealand troops capture Gabès, Tunisia, while Axis troops withdraw from El Hamma.
2) From U 174: Have not yet found "Karlin". - Grandefeld -
3) U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) concludes War Patrol Outfitting in Hamburg.

RST
KorvKpt.& Cmdr. U 115
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