Hydra-class sloop

Class overview
Name	Hydra-class steam sloop
Builders	Chatham Dockyard
Operators	Royal Navy
Preceded by	HMS Gorgon
Succeeded by	Merlin-class sloop
Built	1837–1839
In commission	1838–1870
Completed	3
Retired	3
General characteristics
Type	Steam sloop
Displacement	1,096 long tons (1,114 t)
Tons burthen	817 tons bm
Length	list error: <br /> list (help); 165 ft (50 m) (gundeck); 143 ft 7.25 in (43.77 m) (keel)
Beam	32 ft 10 in (10.01 m)
Draught	13 ft (4.0 m)
Depth of hold	20 ft 4 in (6.20 m)
Propulsion	list error: <br /> list (help); Boulton and Watt beam engine; Iron tubular boilers; 220 hp (164 kW); Side paddles
Speed	9 knots (17 km/h; 10 mph) (under steam)
Complement	135
Armament	list error: <br /> list (help); • 2 × 32-pounder guns; • 2 × 8 in (200 mm) guns

The Hydra-class were a class of three paddlewheel steam sloops of the British Royal Navy designed by the Surveyor of the Navy William Symonds and his Chief Clerk John Edye.

Ships

HMS Hydra
- Ordered 18 September 1837
- Launched 13 June 1838
- Out of service 13 May 1870

HMS Hecla
- Ordered 15 March 1838
- Launched 14 January 1839
- Out of service 15 June 1863

HMS Hecate
- Ordered 12 March 1838
- Launched 30 March 1839
- Out of service 1865

^ Davis, Peter (2009). "William Loney RN - Ships". home.wxs.nl. Retrieved 13 January 2012.
^ Harrison, Simon (2012). "British Hydra Class". threedecks.org. Retrieved 13 January 2012.

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