Patrol info for U-21
| Departure | Arrival / Fate | Duration | ||
| 9 Sep 1939 | Wilhelmshaven | 1 Oct 1939 | Wilhelmshaven | 23 days |
Commander | Officers * |
 Kptlt. Fritz Frauenheim |
WO Oblt. Robert Bartels |
Patrol in the North Sea off the east coast of Scotland.
Daily positions, sinkings and allied attacks during the patrol of U-21
We have daily positions for all 23 days on this patrol.
Departure from Wilhelmshaven on 9 Sep 1939.
10 Sep 1939 - 11 Sep 1939 - 12 Sep 1939 - 13 Sep 1939 - 14 Sep 1939 - 15 Sep 1939 - 16 Sep 1939 - 17 Sep 1939 - 18 Sep 1939 - 19 Sep 1939 - 20 Sep 1939 - 21 Sep 1939 - 22 Sep 1939 - 23 Sep 1939 - 24 Sep 1939 - 25 Sep 1939 - 26 Sep 1939 - 27 Sep 1939 - 28 Sep 1939 - 29 Sep 1939 - 30 Sep 1939 - 1 Oct 1939 -
Ships hit by U-21 during this patrol
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-21 during this patrol
9 Sep 1939
HMS Ursula (N 59) (Lt.Cdr. G.C. Philips, RN) fired the first British submarine torpedoes of the war in unsuccessfully attacking U-35 and U-21 with a spread of five torpedoes some 23 miles (37 km) north of the Dutch island of Schiermonnikoog. (Sources: Dr. Jürgen Rohwer)
About this data
If you believe we have missed an attack on a German U-boat in this listing please let us know.
See all patrols for U-21
* These are officers that later became commanders themselves.