TYPE: Escort fighter, fighter-bomber
ACCOMMODATION: Pilot only
POWER PLANT: Two Rolls-Royce Peregrine liquid-cooled engines, rated at 885 hp each
PERFORMANCE: 360 mph at 15,000 ft
COMMENT: The Westland Whirlwind was a British twin-engine heavy fighter developed by Westland Aircraft.. A contemporary of the Supermarine Spitfire and Hawker Hurricane, it was the Royal Air Force’s first single-seat, twin-engine, cannon-armed fighter. When it first flew in 1938, the Whirlwind was one of the fastest and most heavily-armed combat aircraft in the world. Protracted development problems with its Rolls-Royce Peregrine engines delayed the project and only a relatively small number of Whirlwinds, in total 116 aircraft, were built. During the Second World War, only three RAF squadrons were equipped with the Whirlwind, and despite its successful use as a fighter and ground-attack aircraft it was withdrawn from service in 1943. At least 67 Mk.I fighters were converted into Mk.II aircraft, nicknamed “Whirlibombers”. Lessons learned from the Whirlwind influenced the development of the high altitude fighter Westland Welkin (Ref.: 23).