Following her eighth patrol, U-30 was retired from front-line service on 15 September 1940 and was assigned to training flotillas in the Baltic for the rest of the war.

Unterseebootsflottille") was a training flotilla ("Ausbildungsflottille") of the German Kriegsmarine during World War II.

In January 1944 he became commander of 25th U-boat Flotilla, a training flotilla based at Gotenhafen.

She served in several training flotillas in her 10-year career, but sank or damaged no ships.

U-48 returned to Kiel on 22 June 1941, where her crew disembarked and she was transferred to a training flotilla operating exclusively in the Baltic Sea.

Unterseebootsflottille") was formed in Danzig in April 1940 as a training flotilla responsible for Firing Training.

An anti-submarine school, HMS Osprey, and a training flotilla of four vessels were established on Portland in 1924.

They attend 30 creative centres, 6 science-technical stations and four young naturalists stations, five tourists clubs, three training flotillas, 11 children's sport clubs and 20 sport schools.

During the first months it was a training flotilla, but when it moved to St. Nazaire in February 1942 it became a combat flotilla.

The flotilla was a training flotilla and nearly 300 boats received their basic training.