30th U-Flotilla

Helmut Rosenbaum pictured before taking command of the 30th U-Flotilla.

Formed: October 1942. 

Disbanded: October 1944

Bases: Constanza (October 1942 to March 1944) and Feodosia (March to October 1944), both within the Black Sea. 

Commanders:
Kapitänleutnant Helmut Rosenbaum (October 1942 to May 1944)
Kapitänleutnant Klaus Peterson (May 1944 to October 1944) 
Kapitänleutnant Clemens Schöler (October 1944)

Boats:
U9, U18, U19, U20, U23, U24.