24-class sloop

HMS Sir Bevis
Class overview
Operators
Preceded byFlower class
Built1917–1918
In commission1918–1946
Planned24
Completed22
Cancelled2
Lost1
General characteristics
TypeSloop
Displacement1,320 long tons (1,341 t) standard
Length
  • 258 ft (79 m) p/p
  • 267 ft 6 in (81.53 m) o/a
Beam35 ft (11 m)
Draught10 ft 6 in (3.20 m)
Propulsion
  • 4-cylinder triple expansion engine, 2,500 ihp (1,900 kW)
  • 2 cylindrical boilers
  • 1 screw
Speed17 knots (20 mph; 31 km/h)
Range260 tons of coal
Complement82
Armament

The 24 class was a class of minesweeping sloops. They were derived from the preceding Flower-class sloop, but designed to appear double-ended. Twenty-four ships to this design (hence the class name) were ordered between December 1916 and April 1917 under the Emergency War Programme for the Royal Navy in World War I, although two of them were cancelled before launch. All were named after famous racehorses (winners of The Derby), but they were not named Racehorse class as the Admiralty realised that this could easily be confused in communications with the Racecourse class of paddle minesweepers, and they officially became the 24 class.

Like the Flower-class sloops, they were single-screw fleet sweeping sloops used almost entirely for minesweeping, although only ten were completed by the Armistice in 1918. However, they had identical deckhouses and gun shields at either end of the vessel, with straight stems and sterns. Furthermore, four of those completed had the single mast aft of the centrally-located funnel, and the rest had the mast forward of the funnel. The symmetrical design was completed with fake anchors at the stern to confuse enemy targeting.