Ordered - 7 Aug 1939
Laid down - 20 Mar 1940 - AG Weser, Bremen (werk 985)
Launched - 10 Oct 1940
Commissioned 2/Jan/41 U-66 a type IX-C Kptlt. Richard Zapp (Knights Cross)
Commanders
2 Jan 1941 - 21 Jun 1942 KrvKpt. Richard Zapp (Knights Cross)
22 Jun 1942 - 1 Sep 1943 Kptlt. Friedrich Markworth (Knights Cross)
6 Aug 1943 - Sep 1943 Oblt. (R) Paul Frerks
2 Sep 1943 - 6 May 1944 Oblt. Gerhard Seehausen (German Cross in Gold)
Successes
2 ships damaged for a total of 22,674 GRT
2 warships damaged for a total of 64 tons
Sunk 6 May, 1944 west of the Cape Verde Islands, in position 17º17"N 32º29"W, by depth charges, ramming and gunfire from Avenger and Wildcat aircraft of the
24 Dead
36 Survivors
In the south Atlantic U-66 sank 7 ships with a total of 30,559 tons.
MATADIAN - HOLMSIDE - SAINT LOUIS - I.C. WHITE - JOHN HOLT - SILVERMAPLE - TAMANDARÉ
MATADIAN
HOLMSIDE
SAINT LOUIS
I. C. WHITE
JOHN HOLT
SILVERMAPLE
TAMANDARE (Sister ship SCHENECTADY)