Dragonfly-class river gunboat

The Dragonfly class was a class of river gunboats. 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. The class consisted of:
 * HMS Dragonfly - lost in the Banka Strait, 14 February 1942.
 * HMS Grasshopper (T85) - lost in the Banka Strait, 14 February 1942.
 * HMS Locust (1939)
 * HMS Mosquito (T94) - lost on 1 June 1940, off Dunkirk.
 * HMS Scorpion (1937) - upgunned variant. Lost in the Banka Strait, 13 February 1942.
 * HMS Bee - cancelled, March 1940.