|F-class escort ship|
|Built:||1936 - 1939|
|Displacement:||712 Tons standard, 1028 tons full load|
|Length:||75.94 meters (80.20 meters after rebuild)|
|Propulsion:||2 shaft, Brown-Boveri geared steam turbines, 2 boilers 14,000 shp|
|Speed:||28 knots (51.9 km/h)|
The F class escort ships were a class of fleet escorts (Ger: Flottenbegleiter) used by the Kriegsmarine during the Second World War. Ten ships were built in total, of a type roughly comparable to British frigates or American destroyer escorts. They were the only such type of ship built by the Kriegsmarine. The ten ships were not given names, but were designated F 1 through F 10.
The ships were built by Germaniawerft (F 1 - F 6), Kiel, Blohm & Voss (F 7, F 8) and Wilhelmshaven dockyard (F 9, F 10). They entered service between 1936 and 1939. The ships were originally conceived as fast fleet or convoy escort ships that could also perform anti-submarine and minesweeping work. They were also used as a testbed class for a new high-pressure steam power plant intended for use in future destroyers.
As a class, they were overloaded and over-engined, which contributed to severe hull stress and very poor sea-keeping characteristics; these flaws were partially remedied by extensive rebuilds between 1938 and 1940. The power plants likewise proved to be prone to frequent breakdowns, and most of the ships were removed from operational service during the later years of the war after machinery failures meant the ships spent more time in repair than in use. With the exception of fleet service and convoy duties between 1939 and 1941, they spent most of the war in use as tenders or U-boat training ships.
One ship, F 9, was sunk in December 1939 after being torpedoed by HMS Ursula. The others survived the war and were scrapped or sunk as target ships.
- Conway's All the World's Fighting Ships 1922-1946
- page from german-navy.de
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