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Spitfire LF Mk Vb of 316 (Polish) "Warszawski" Squadron. This Spitfire has the "cropped" Merlin 45 series engine and the "clipped" wings. The British Supermarine Spitfire was one of the most popular fighter aircraft of the Second World War. The basic airframe proved to be extremely adaptable, capable of taking far more powerful engines and far ...
The Rolls-Royce Griffon engine was designed in answer to Royal Navy specifications for an engine capable of generating good power at low altitudes. Concepts for adapting the Spitfire to take the new engine had begun as far back as October 1939; Joseph Smith felt that "The good big 'un will eventually beat the good little 'un."
Supermarine Spitfire variants powered by early model Rolls-Royce Merlin engines mostly utilised single-speed, single-stage superchargers. The British Supermarine Spitfire was the only Allied fighter aircraft of the Second World War to fight in front line service from the beginnings of the conflict, in September 1939, through to the end in ...
The new engine had increased power resulting from engine improvements and engine limitations of +18 lbf/(sq in) and 3,000 rpm (5 minute combat). During the second half of 1943, production of the Merlin 63 powered F Mk IX was discontinued in favour of the Merlin 66 powered LF Mk IX. [ 32 ]
Spitfire 944; Supermarine Speed Spitfire; Supermarine Spitfire (early Merlin-powered variants) Supermarine Spitfire (Griffon-powered variants) Supermarine Spitfire (late Merlin-powered variants) Supermarine Spitfire operational history; Supermarine Spitfire prototype K5054; Supermarine Spitfire variants: specifications, performance and armament
The Spitfire's performance improved greatly as WWII progressed; for more information, see Supermarine Spitfire variants: specifications, performance and armament. Data from Spitfire: The History and Jane's Fighting Aircraft of World War II. [207] [208] General characteristics. Crew: 1; Length: 29 ft 11 in (9.12 m) Wingspan: 36 ft 10 in (11.23 m)
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The Spitfire was much slower at such a low level; the prototype was only capable of 290 mph (470 km/h) at this height. [1] Consequently, a record-breaking machine would have to be extensively modified. Rolls-Royce began work on a sprint version of the Spitfire's Merlin engine, to run on a special fuel mix. [1]