|Ordered||15 Dec 1937|
|Laid down||22 May 1939||F. Krupp Germaniawerft AG, Kiel (werk 594)|
|Launched||10 Apr 1940|
|Commissioned||30 May 1940||Kptlt. Joachim Schepke (Oak Leaves)|
|Successes||25 ships sunk, total tonnage 135,614 GRT|
4 ships damaged, total tonnage 17,229 GRT
1 ship a total loss, total tonnage 2,205 GRT
Sank at 0318hrs on 17 March, 1941 south-east of Iceland, in approximate position 61N, 12W, after being rammed and depth charged by the British destroyers HMS Walker and HMS Vanoc. 38 dead and 6 survivors.
Attacks on this boat
17 Aug 1940
20.45 hrs, 200 miles NW of Ireland: a destroyer dropped 7-8 depth charges shortly after U-100 located a convoy. The hydrophones were disabled and the boat lost contact with the convoy. (Sources: Ritschel)
22 Sep 1940
At the end of a very successful attack on convoy HX-72 in the Atlantic west of Ireland, the boat tried to hit Putney Hill with the last torpedo at 02.57 hours, but missed, and was driven off by 3 rounds of shellfire from the merchantman. (Sources: Ritschel)
21 Oct 1940
During its attack on convoy HX-79, the boat was shelled by a tanker after missing it with a torpedo at 00.31 hours. No damage. (Sources: Ritschel)
23 Nov 1940
After a successful attack on convoy SC-11 in the Atlantic west of Ireland, star shells from a destroyer forced U-100 to dive. The depth charging that followed then disabled the hydrophones. (Sources: Ritschel)
4 recorded attacks on this boat.
General notes 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-100 did not suffer any casualties (we know of) until the time of her loss.
We have 1 emblem entry for this boat! See the emblem page for this boat or view each one below.
There was another U-100 in World War One
That boat was launched from its shipyard on 25 Feb 1917 and commissioned into the Imperial Navy on 16 Apr 1917. The Naval war in WWI was brought to an end with the Armistice signed on 11 Nov, 1918. Read about the U 100 during WWI.