Philomel-class gunvessel

Jeanette (the former HMS Pandora) at Le Havre in 1878
Class overview
Operators	Royal Navy
Preceded by	Intrepid-class gunvessel
Succeeded by	Cormorant-class gunvessel
Built	1859 - 1867
In commission	1860 - 1906
Completed	20
Cancelled	6
General characteristics
Type	Wooden screw gunvessel
Displacement	570 tons
Length	145 ft (44.2 m) oa 127 ft 10.25 in (39.0 m) pp
Beam	25 ft 4 in (7.7 m)
Depth of hold	13 ft (3.96 m)
Installed power	About 325 ihp (242 kW)
Propulsion	Single 2-cyl. horizontal single-expansion steam engine Single screw
Sail plan	As designed: Schooner (or "gunboat") rig Later: Often a barquentine or barque rig
Speed	About 9.5 knots (18 km/h)
Complement	60
Armament	One 68-pdr muzzle-loading smooth-bore gun Two 24-pdr howitzers Two 20-pdr breech-loading guns

The Philomel-class gunvessel was a class of wooden-hulled screw-driven second-class gunvessels built for the Royal Navy between 1859 and 1867, of which 26 were ordered but only 20 completed.^[1] They had a mixed history, with some serving for as little as 5 years, and others surviving into the 1880s. Two of the class were sold and used as Arctic exploration vessels, both eventually being lost in the ice.