UD-1
(ex Dutch boat O-8)


Type H-class American design*
Laid down 1914 Canadian Vickers, Montreal, Canada
Commissioned * 21 Nov 1940 Krvkpt. Hermann Rigele
Commanders 11.40 - 05.41
05.41 - 11.41
11.41 - 12.42
12.42 - 05.43
05.43 - 11.43
Krvkpt. Hermann Rigele
Kptlt. Friedrich Schäfer
Krvkpt. Franz Venier
Kptlt. Wolfgang Ketelsen
Oblt. Friedrich Weidner
Career No patrols 11.40 - 04.41 1st Flotilla (Kiel) trial boat
05.41 - 08.41 3rd Flotilla (Kiel) trial boat
08.41 - 12.41 5th Flotilla (Kiel) trial boat
12.41 - 07.43 U-Abwehrschule (Gotenhafen)
school boat
07.43 - 11.43 5th Flotilla (Kiel) school boat
Successes None
Fate Launched as the British submarine H 6 on 12 May, 1915. Commissioned at Quebec City, Canada on 10 June, 1915. The boat arrived at Plymouth, UK on 4 Aug 1915 after crossing the Atlantic under her own power.

Interned after running aground at Schiermonnikoog in the Netherlands on 16 Jan, 1916. Purchased by the Dutch government and commissoned as O 8.

Taken over by the German Navy on 14 May, 1940 at Den Helder, Netherlands. Commissioned as UD-1 on 21 Nov, 1940.
Taken out of service at Kiel, Germany on 23 Nov, 1943.
Scuttled at Kiel on 3 May, 1945. Wreck broken up.

* Commissioned into German service.

* Electro boat Company design No. 602E.

Thanks to J. Perkins for additional data and minor corrections.