Patrol info for U-403
Date lookup for 30 Jul 1943
| Departure | Arrival / Fate | Duration | ||
| 13 Jul 1943 | Brest | 18 Aug 1943 | Lost | 37 days |
Commander | Officers * |
 Kptlt. Karl-Franz Heine |
U-403's position on 30 Jul 1943
Ships hit by U-403 on this date
General Events during this patrol
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Attacks on U-403 during this patrol
30 Jul 1943
The boat was proceeding on the surface with U-43 when Avenger and Wildcat aircraft from the US escort carrier USS Santee. Both boats dived: two depth charges were dropped on U-403, and a Fido homing torpedo was launched at U-43. U-403 escaped, but U-43 was lost with her crew of 55. (Sources: Blair, vol 2, page 397)
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* These are officers that later became commanders themselves.