Returning to
F2 and
F4:
Both ships were rebuilt as torpedo retrieval ships. This included the removal of both 105mm cannons and replacing the 37mm twins with the forward 20mm singles. The superstructure was reduced to make room for a torpedo storage area, torpedo maintenance facilities were included as well. A new main mast was installed as well, together with a new crane. A new bow was added as well.
F2 and
F4 were rebuilt from c. mid-1939 to c. mid-1940.
F2 was assigned to the 23rd. and 25th U-boat flotilla,
F4 was used for training U-boat crews.
By 1944, the situation in the east had become desperate. With enough dedicated torpedo retrieval ships built over the war, the Flottenbegleiter were called back into their original function. For this, the new mast and crane were removed again and additional weapons installed. The 105mm cannons returned,
F2 got an elevated 20mm quad and
F4 a 37mm twin. Both ships served as guard- and escort ships in the Baltic Sea until the end of the war.
Both ships survived the war and were given to Great Britain as war prizes.
F2 sank in 1946, while ankored at a bouy in Scapa Flow and
F4 was scrapped in 1949.
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