 The Queen Wasp was built to meet an Air Ministry Specification Q.32/35 for a pilotless target aircraft to replace the de Havilland Tiger Moth based de Havilland Queen Bee.Two prototypes were ordered in May 1936, one to have a wheeled landing gear for use by the Royal Air Force and the other as a floatplane for Royal Navy use for air-firing practice at sea.Powered by the Armstrong Siddeley Cheetah engine, a total of 65 aircraft were ordered, contingent on the success of the flight test programme.