Azalea class sloop

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HMS Azalea
Class overview
In commission:1915–1935
General characteristics
Type: Minesweeper
Displacement: 1,250 tons
Length: 255 ft 3 in (77.80 m) p/p
267 ft 9 in (81.61 m) o/a
Beam: 33 ft 6 in (10.21 m)
Draught: 11 ft 9 in (3.58 m)
Propulsion: 1 × 4-cylinder triple expansion engine
2 × cylindrical boilers
1 screw
Speed: 17 knots (31 km/h)
Range: 2,000 nmi (3,700 km) at 15 kn (28 km/h) with max. 260 tons of coal
Complement: 79 men
Armament: Designed to mount 2 × 4 or 4.7 inch guns and 2 × 3 pdrs (47 mm) AA. A few had no 3-pdrs.

The Azalea class of twelve minesweeping sloops were built under the Emergency War Programme for the Royal Navy in World War I as part of the larger "Flower Class", which were also referred to as the "Cabbage Class", or "Herbaceous Borders". The third batch of twelve ships to be ordered, in May 1915, they differed from the preceding Acacia class only in mounting a heavier armament, with either 4.7 inch or 4 inch guns instead of the 12-pounders of the earlier class.

They were single-screw Fleet Sweeping Vessels (Sloops) with triple hulls at the bows to give extra protection against loss when working.


See also


  • Jane's Fighting Ships of World War I, Janes Publishing, 1919
  • The Grand Fleet, Warship Design and Development 1906-1922, D. K. Brown, Chatham Publishing, 1999, ISBN 1-86176-099-X