Azalea-class sloop

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HMS Azalea IWM SP 000329.jpg
HMS Azalea
Class overview
Name: Azalea class
Operators:  Royal Navy
Built: 1915
In commission: 1915–1935
Completed: 12
Lost: 2
General characteristics
Type: Minesweeper
Displacement: 1,250 tons
  • 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)
  • 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: 2 × 1 – QF 4 inch Mk IV guns, BL 4 inch Mk IX guns or QF 4.7 inch Mk IV guns and 2 × 1 – 3-pounders (47 mm) AA. A few had no 3-pounders.

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 (119 mm) or 4-inch (102 mm) guns instead of the 12-pounder guns 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.



  • 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

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