U-170

Type

IXC/40

Ordered

15 Aug 1940

Laid down

21 May 1941

Deutsche Schiff und Maschinenbau AG, Bremen (werk 709)

Launched

6 Jun 1942

Commissioned

19 Jan 1943

Kptlt. Günther Pfeffer

Commanders

19 Jan 1943	-	Jul, 1944		Kptlt. Günther Pfeffer
Jul, 1944	-	9 May 1945		Oblt. (R) Hans-Gerold Hauber

Career
4 patrols

19 Jan 1943	-	31 May 1943	4. Flottille (training)
1 Jun 1943	-	31 Oct 1944	10. Flottille (active service)
1 Nov 1944	-	8 May 1945	33. Flottille (active service)

Successes

1 ship sunk, total tonnage 4,663 GRT

Fate

Surrendered on 9 May 1945 at Horten, Norway.

Transferred to Loch Ryan, Scotland on 27 May 1945.

Operation Deadlight (post-war Allied operation, info)
Sunk on 30 Nov, 1945 in position 55.44N, 07.53W.

Final location

See the 1 ships hit by U-170 - View the 4 war patrols

Attacks on this boat and other events

25 Oct 1944
A boat was attacked and damaged by aircraft from the Guadalcanal hunter-killer group. Blair claims this was U-170, but that boat reported "Very quiet day ... far away depth charges heard". (Sources: Blair, vol 2, page 621)

31 Oct 1944
The boat reported an attack on a convoy escorted by "destroyers" and fired a T5 torpedo, but was in return depth charged and severely damaged (War Diary, KTB).

5 Nov 1944
The boat reported Schnorchel damage from depth charging and an intention to return for repair. She docked in Norway on 30 Nov. (Sources: Blair, vol 2, page 621)

3 recorded attacks on this boat.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-170 did not suffer any casualties (we know of) until the time of her loss.