Patrol info for U-21
Date lookup for 9 Sep 1939
| 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.
U-21's position on 9 Sep 1939
Ships hit by U-21 on this date
General Events during this patrol
We have no events listed for this date.
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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)
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* These are officers that later became commanders themselves.