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U 115
- KTB -
First War Patrol
(17th war patrol overall)
Monday,
10 May 1943 - West of Vigo
0201 - Trying to re-establish contact with the escort groups in the area. Course 52°.
0242 - Qu.1577CG - Course 128°.
0402 - Qu.1812CG - Course 180°.
0454 - Qu.1815CG - Course 231°.
0545 - Early Morning Dawn.
0703 - Sunrise. Weather and Sea unchanged in 2 days.
1017 - Qu.1767CG - Course 270°.
1039 - Qu.1759CG - FuMB Detection in 250°true and 262°true (no Magic Eye), E=18000. 2xH.F.
1043 - Destroyer bearing 344°, E=138000, on course NNE, medium speed.
1047 - Trying to get a closer look. Course 315°, Full-Ahead.
Slowly more and more destroyers come into sight, a River Class Frigate can clearly be identified. Appears to be a Hunter/Escort Group consisting of at least 7 destroyers, on course 18°, 12 kn.
1052 - New course 18°, 2xH.F./13kn. Approaching as close as 9400m - no detection.
1124 - On course 0°. Decision to break-off pursuit. Reason:
1. Unfavourable attack conditions, i.e, medium heavy swell and no cover due to clear daylight;
2. Numeric superiority of enemy;
3. Such attack not within scope of actual Op.-Order.
1140 - Running off on course 110°, and at 1153 on course 164°.
1200 - Qu.1764CG -
Days Run: 183.6nm - ↗ 174.3nm (20h 50') - ↘ 9.3nm (3h 10')
Total: 1138.1nm (5tg 22h) - ↗ 1096.5nm (5tg 7h 10') - ↘ 41.6nm (14h 50')
495cbm (3cbm in 24h); Course 164°; Weather and Sea unchanged in 2 days and 5h.
Note: Possible salvo shots with 3 torpedoes are: I-II-III and II-III-IV.
1215 - Qu.1764CG - Course 270°.
Outgoing F.T.:
To B.d.U.:
1200 Enemy Task Force 7 Destroyers in Qu.1753CG on course 18°, 12kn. Attack not possible due to seastate and no cover due to clear daylight. Continue outbound transit. 495cbm. ENE5/4, medium heavy swell, clear, visibilty 7.5nm, >1000mb. - RST -
1355 - Qu.1755CG - 225RPM/8kn.
2120 - Sundown. Weather and Sea unchanged in 2 days and 14h.
2244 - Qu.3955CF -
2303 -
Incoming F.T.'s:
From OKW:
a) Heinz Guderian tells The Führer of his misgivings about the Zitadelle plan. Uncharacteristically, Hitler responded that, he too, had concerns about an offensive at Kursk.
b) The British 1st Army reached Hammamet, Tunesia, with the British 6th Armoured Division cutting off our troops at Cape Bon, Tunisia.
From B.d.U.:
a) U 663 (KrvKpt. Heinrich Schmid) not found.
b) Received the following orders for torpedo equipment of boats:
1)
Standing B.d.U. Order No. 40 (Appendix 5) for the torpedo equipment of boats with the Pi 2, Fat G7A and FAT G 7e at present available.
2)
Standing B.d.U. Order No. 309: New depth settings of Pi 2 with "MZ one" (Previous reference: Standing B.d.U. Order No. 35 and Standing B.d.U. Order No. 301 "Draughts of Merchant Vessels".).
3)
Standing B.d.U. Order 306: Method of using FAT torpedoes (incl. Operational release of FAT G 7E).
RST
KorvKpt.& Cmdr. U 115