Hecla-class bomb vessel

	Ships of William Edward Parry's Arctic expedition, HMS Griper and HMS Hecla
Class overview
Name	Hecla
Builders	Mrs Mary Ross, Rochester; Barkworth & Hawkes, North Barton (Hull); Pembroke Dockyard; Chatham Dockyard; Deptford Dockyard; Plymouth Dockyard;
Operators	Royal Navy
In service	1814 - 1857
Planned	12
Completed	8
Cancelled	4
Lost	2
Retired	6
General characteristics
Type	Bomb vessel
Tons burthen	372 1⁄94 tons bm
Length	105 ft (32.0 m) (overall); 86 ft 1.25 in (26.2 m) (keel);
Beam	28 ft 6 in (8.7 m)
Depth of hold	13 ft 10 in (4.22 m)
Propulsion	Sails
Sail plan	Full rigged
Complement	67
Armament	Main deck: 10 × 24-pounder carronades + 2 × 6-pounders; 2 × mortars (1 × 13in + 1 × 10in);

The Hecla class was a class of bomb vessels of the Royal Navy of the early 19th century. They were designed for use as bomb or mortar ships and were very heavily built. Eight ships were launched; all were converted for use as exploration or survey ships. Four ships of the class are known for the role they played in Arctic and Antarctic exploration.

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