U-1228

Type

IXC/40

Ordered

14 Oct 1941

Laid down

16 Feb 1943

Deutsche Werft AG, Hamburg (werk 391)

Launched

2 Oct 1943

Commissioned

22 Dec 1943

Oblt. Friedrich-Wilhelm Marienfeld

Commanders

22 Dec 1943

17 May 1945

Oblt. Friedrich-Wilhelm Marienfeld

Career
3 patrols

22 Dec 1943	-	31 Jul 1944	31. Flottille (training)
1 Aug 1944	-	31 Oct 1944	2. Flottille (active service)
1 Nov 1944	-	8 May 1945	33. Flottille (active service)

Successes

1 warship sunk, total tonnage 900 tons

Fate

Surrendered at Portsmouth, New Hampshire, USA on 17 May 1945 (Waller & Niestlé, 2010).

Post war information (see more post-war boats):
Arrived at Portsmouth Navy Yard, NH on 17 May 45. Scuttled 5 Feb 1946 off the east coast of Cape Cod, USA by torpedoes from the American submarine USS Sirago. Map position is approximate.

Final location

See the 1 ships hit by U-1228 - View the 3 war patrols

Attacks on this boat and other events

18 Sep 1944
22.53 hrs, Norwegian Sea: a British B-24 Liberator (RAF Sqdn 224/R, pilot FO P.M. Hill) dropped six depth charges in a Leigh-Light attack. Most overshot, but one fell close, causing only minor damage, but with serious consequences. On diving, damage to the schnorchel caused carbon monoxide poisoning of the crew. One man died and the boat was forced to return to base. [Matrosenobergefreiter Matthias Mittler] (Sources: BdU KTB/Norman Franks)

1 recorded attack on this boat.

Schnorchel-fitted U-boat

This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in September 1944 but it was of course installed prior to that date.

Read more about the Schnorchel and see list of fitted boats.