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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 ...
Unless otherwise noted, all Griffon-engined Spitfire variants used the strengthened Dunlop AH10019 "four spoke" pattern mainwheels. With the increasing use of hard-surfaced runways in the post-war years, many Spitfires were either manufactured or re-fitted with, larger mainwheels which were of a "three spoke" pattern.
The early Spitfire variants powered by the Rolls-Royce Griffon were adaptations of Mk Vc (early Mk XII) or Mark VIII (late Mk XII and Mk XIV) airframes. The later Griffon-engined Spitfire variants embodied new wings, tail units and undercarriages and were very different from any of the earlier Spitfire marks.
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 was a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II.
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 Spitfire crashed during an airshow at Woodford Aerodrome in 1992 with the loss of the pilot and the civil registration cancelled by the CAA. Ten years later, the registration G-ALGT was reassigned to RM689 for a new-build restoration by Rolls-Royce Heritage Hangar before being moved to long-term storage in 2010. [256] Spitfire F Mk.
In 1940, after receiving a request in March of that year from the Ministry of Aircraft Production for a high-rated (40,000 ft (12,000 m)) Merlin for use as an alternative engine to the turbocharged Hercules VIII used in the prototype high-altitude Vickers Wellington V bomber, Rolls-Royce started experiments on the design of a two-stage ...
On 24 February 1943, the first of the Rolls-Royce Griffon engined Spitfire variants, the F Mk XII was accepted into RAF service, with the first examples being delivered to 41 Squadron. The first operational flight was made on 3 April, with the Mk XII's first victory, a Junkers Ju 88 occurring two weeks later. [ 77 ]