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  2. Supermarine Spitfire variants: specifications, performance ...

    en.wikipedia.org/wiki/Supermarine_Spitfire...

    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 ...

  3. Supermarine Speed Spitfire - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Speed_Spitfire

    In 1937 the idea was raised of attempting a new world landplane speed record with a modified Spitfire. At the time the record of 352 mph (566 km/h) was held by Howard Hughes flying a Hughes H-1 racing aircraft.

  4. Supermarine Spitfire (Griffon-powered variants) - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spitfire...

    A top speed of 423 mph (681 km/h) at 18,500 ft (5,639 m) was predicted. However, constant problems with the development of the Griffon meant that the decision to proceed with building a Spitfire with this engine didn't come to fruition until 1942, with the successful flight trials of the Mk IV.

  5. Fastest propeller-driven aircraft - Wikipedia

    en.wikipedia.org/wiki/Fastest_propeller-driven...

    Also not formally accepted by the FAI, which was not present due to wartime conditions, are speeds recorded in a dive during high-speed tests with the Supermarine Spitfire, including Squadron Leader J.R. Tobin's 606 mph (975 km/h) in a 45° dive in a Mark XI Spitfire (date unknown) and Squadron Leader Anthony F. Martindale's breaking 620 mph ...

  6. Supermarine Spitfire - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spitfire

    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.

  7. Supermarine Spiteful - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spiteful

    The enlarged tail improved handling but caused a further drop in top speed. [12] The Spiteful was found to be faster than the Spitfire, but the increase in speed was not as great as had been expected. The Spiteful had more adverse compressibility effects and poorer stalling characteristics than its predecessor. [13]

  8. Supermarine Spitfire prototype K5054 - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spitfire...

    The rudder was oversensitive, and the top speed was just 330 miles per hour (530 km/h), little faster than Sydney Camm's new Merlin-powered Hurricane. [ 4 ] Ground resonance testing of the aircraft at Farnborough took place in April.

  9. Supermarine Spitfire (late Merlin-powered variants) - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spitfire_(late...

    The maximum power of the Merlin 66 was 1,720 hp (1,280 kW) at 5,750 ft (1,283 kW at 1,752 m) and the maximum speed of the Spitfire LF Mk IX was 404 mph (650 km/h) at 21,000 feet (6,400 m). [34] The Merlin 66 introduced a new Bendix-Stromberg injection carburettor, which replaced the earlier S.U float carburettor.