U-634

Type

VIIC

Ordered

15 Aug 1940

Laid down

23 Sep 1941

Blohm & Voss, Hamburg (werk 610)

Launched

10 Jun 1942

Commissioned

6 Aug 1942

Oblt. Hans-Günther Brosin

Commanders

6 Aug 1942	-	2 Feb 1943		Oblt. Hans-Günther Brosin
28 Jan 1943	-	30 Aug 1943		Oblt. Eberhard Dahlhaus

Career
3 patrols

6 Aug 1942	-	31 Jan 1943	5. Flottille (training)
1 Feb 1943	-	30 Aug 1943	9. Flottille (active service)

Successes

1 ship sunk, total tonnage 7,176 GRT

Fate

Sunk on 30 August 1943 in the North Atlantic east of the Azores, in position 40.13N, 19.24W, by depth charges from the British sloop HMS Stork and the British corvette HMS Stonecrop. 47 dead (all hands lost).

Loss position

See the 1 ships hit by U-634 - View the 3 war patrols

Wolfpack operations

U-634 operated with the following Wolfpacks during its career:
   Westmark (6 Mar 1943 - 11 Mar 1943)
   Amsel (22 Apr 1943 - 3 May 1943)
   Amsel 2 (3 May 1943 - 6 May 1943)
   Elbe (7 May 1943 - 10 May 1943)
   Elbe 1 (10 May 1943 - 14 May 1943)

Attacks on this boat and other events

18 Apr 1943
09.10 hrs, Atlantic NW of Finisterre, outbound: the boat was attacked by Australian Sunderland Mk.III DV969 (10 Sqdn RAAF/E, pilot F/O E.H. Farmer). Two 250lb GP bombs were dropped on the first run, falling 30m (98ft) astern. U-634 fought off a second attack (six depth charges) with AA fire before diving with minor damage to the conning tower from strafing. The Sunderland was hit in the nose and starboard wing and two of the 12 crew were wounded by shell splinters. (Sources: Franks/Zimmerman)

13 Jun 1943
Aircraft attack, aircraft shot down:British Sunderland flying boat (228 Sqdn RAF/U)

14 Jun 1943
Outbound from Brest, in the Bay of Biscay: a Wellington bomber made a Leigh Light attack and forced the boat to dive. Date is approximate. (Sources: Blair, vol 2, page 365)

3 recorded attacks on this boat.