Dragonfly-class gunboat
| Class overview | |
|---|---|
| Name | Dragonfly class | 
| Builders | Vosper Thornycroft, Yarrow Shipbuilders, J S White | 
| Operators | Royal Navy | 
| Subclasses | HMS Scorpion | 
| Built | 1937-1938 | 
| In commission | 1938-1968 | 
| Planned | 6 | 
| Completed | 5 | 
| Cancelled | 1 | 
| Lost | 4 | 
| Retired | 1 | 
| Scrapped | 1 | 
| General characteristics | |
| Type | River gunboat | 
| Displacement | 585 long tons (594 t) | 
| Length | 197 ft (60 m) | 
| Beam | 33 ft (10 m) | 
| Draught | 5 ft (1.5 m) | 
| Installed power | 
 | 
| Propulsion | 2 shafts; 2 geared steam turbines | 
| Speed | 17 knots (31 km/h; 20 mph) | 
| Complement | 74 | 
| Armament | 
 | 
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.