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Five-Bladed Propeller
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The Spitfire’s development from racing seaplanes was evident throughout the evolution of the fighter. The original prototype had a two-bladed, fixed pitch propeller. The Mark 22 had a five-bladed, variable pitch propeller. This meant the pilot could change the angle at which the propeller bit into the air, greatly increasing the performance of the aircraft. Most biplanes had fixed-pitch propellers; most monoplanes of the 1940’s had variable pitch propellers.
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K5054, the original Spitfire prototype in 1936. More than 20,300 Spitfires of all types were built through 1952. The last version was the Mark 24.
A Mark 22 Spitfire in flight. The Mark 22 was a significant change from the K5054, almost a completely new aircraft. 287 were built.
Imperial War Museum - Duxofrd Aircraft
Supermarine Spitfire - Great Britain
Supermarine Spitfire - Wikipedia, the free encyclopedia
R. J. Mitchell - Wikipedia, the free encyclopedia
Biography of RJ Mitchell, designer of the Spitfire.
A short biography of RJ Mitchell.RJ Mitchell. A life in Aviation. Spitfire and Battle of Britain.
RJ Mitchell managed Supermarine which built the Battle of Britain Spitfire, flying boats and Schneider Trophy winning aircraft. RJ Mitchell is remembered for the Spitfire and Schneider Trophy.
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