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The Mark III was the fastest Spitfire yet, achieving 60 mph (97 km/h) in 13.4 seconds, [1] and reaching a top speed of 95 mph (153 km/h). Average fuel consumption was 33mpg. [1] The Mark III continued production into 1971, well after introduction of the Mark IV. [1] Interior
Experimental low-speed research aircraft with highly-swept wings in support of F23/49 (i.e. English Electric P.1) Short SB.5 [57] M.101 NA.28 1950, 1952 Three-seat anti-submarine aircraft Fairey Firefly AS.7 [58] N102 1950 Two-seat trainer for Royal Navy Boulton Paul Sea Balliol [59] ER.103 1950 Delta-wing research aircraft capable of Mach 1.5
Depending on the supercharger fitted, engines were rated as low altitude (e.g.; Merlin 66, Griffon III), where the engine produced its maximum power below about 10,000 feet (3,000 m), medium altitude (Merlin 45), where the engine produced its maximum power up to about 20,000 feet (6,100 m), and high altitude (Merlin 70), where the engine produced its maximum power above about 25,000 feet ...
Also, in June 1938, the Heinkel He 100 V2 set a new record of 394.6 mph (635.0 km/h), which was very close to the maximum speed the as yet unflown Speed Spitfire was likely to achieve; the first flight of the modified Spitfire took place on 11 November 1938 and, in late February 1939, the maximum speed reached was 408 mph (657 km/h) at 3,000 ft ...
Audio recording of Spitfire fly-past at the 2011 family day at RAF Halton, Buckinghamshire Supermarine Spitfire G-AWGB landing at Biggin Hill Airport, June 2024. The Supermarine Spitfire is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II.
British military aircraft designations are used to refer to aircraft types and variants operated by the armed forces of the United Kingdom.. Since the end of the First World War, aircraft types in British military service have generally been known by a service name (e.g. 'Spitfire'), with individual variants recognised by mark numbers, often in combination with a letter to indicate the role.
VR971, the last of the 22,000 aircraft built under the Spitfire/Seafire program, left the production line at Supermarine on 28 January 1949. The maximum level speed for this mark was: 451mph at 20,000ft or 433mph at 24,000ft, ceiling: 43,100ft, range: 405 miles plus 15 minutes combat. [32]
Pilot's Notes for Spitfire Mark F.VII – Merlin 64 or 71 engine; Mark F.VIII-Merlin 63,66 or 70 engine. Air Publication 1565G & H -P.N. London, UK: Air Ministry, December 1943. Air Ministry. Pilot's Notes (3rd edition) for Spitfire IX, XI & XVI; Merlin 61, 63, 66, 70 or 266 Engine. Air Publication 1565J, P & L -PN. London, UK: Air Ministry ...