No emblem existed

30th Flotilla

Frontflottille (Combat Flotilla)


10.42 - 10.44 Constanza (Romania)

Flotilla Commanders

10.42 - 05.44
05.44 - 07.44
07.44 - 10.44
Kptlt. Helmut Rosenbaum (Knights Cross)
Kptlt. Clemens Schöler
Kptlt. Klaus Petersen

U-boat Types


Assigned U-boats

U-9, U-18, U-19, U-20, U-23, U-24

6 U-boats assigned to this flotilla during its service.


The 30th Flotilla was founded in October 1941 under the command of Kptlt. Helmut Rosenbaum. The boats reached Constanza after a transport over land and canals. The operational area was limited to the Black Sea. Its history ended in September 1944, when the three last Flotillas boats U-19, U-20 and U-23 were scuttled on 10 and 11 September, 1944 near the Turkish coast.

U-boat Flotillas