Dragonfly-class gunboat

The Dragonfly class was a class of twin shaft river gunboats of the Royal Navy. Six were planned and five were built: of those five, four were lost in the Second World War. One of the four was HMS Scorpion, a slightly upgunned and better powered version.

Class overview
NameDragonfly class
BuildersVosper Thornycroft, Yarrow Shipbuilders, J S White
Operators Royal Navy
SubclassesHMS Scorpion
Built1937-1938
In commission1938-1968
Planned6
Completed5
Cancelled1
Lost4
Retired1
Scrapped1
General characteristics
TypeRiver gunboat
Displacement585 long tons (594 t)
Length197 ft (60 m)
Beam33 ft (10 m)
Draught5 ft (1.5 m)
Installed power
  • 2 Admiralty 3-drum boilers
  • 3,800 shp (2,800 kW)
Propulsion2 shafts; 2 geared steam turbines
Speed17 knots (31 km/h; 20 mph)
Complement74
Armament
  • 2 × single 4 in (102 mm) guns
  • 1 × single 3.7 in (94 mm) Mark V howitzer
  • 8 × machine guns
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