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 (front boat)

Successes

1 ship sunk for a total of 7,176 GRT

Fate

Sunk 30 Aug, 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).

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:
   Neptun (20 Feb 1943 - 3 Mar 1943)
   Westmark (6 Mar 1943 - 11 Mar 1943)
   Amsel (25 Apr 1943 - 4 May 1943)
   Amsel II (4 May 1943 - 6 May 1943)

Attacks on this boat

18 Apr 1943
At 09.10 hours, the outbound boat was attacked by the Australian Sunderland Mk.III DV969 (10 Sqdn RAAF/E, pilot F/O E.H. Farmer) in the Bay of Biscay. Two 250lb GP bombs were dropped in a first attack, but missed 30 metres astern. U-634 also fought off a second attack (six depth charges) with AA fire before crash-diving, only sustaining minor damages to the conning tower by strafing. The Sunderland had been hit in the nose and the starboard wing with two of 12 crewmen wounded by shell splinters. (Sources: Franks/Zimmerman)

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

14 Jun 1943
While outbound from Brest, in the Bay of Biscay, the boat was attacked by a Leigh-light equipped Wellington and forced to dive to safety. Date is approximate. (Sources: Blair, vol 2, page 365)

3 recorded attacks on this boat.