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Rolls-Royce Merlin 23. This is a list of Rolls-Royce Merlin variants. Engines of a similar power output were typically assigned different model numbers based on supercharger or propeller gear ratios, differences in cooling system or carburettors, engine block construction, starting system, or arrangement of engine controls.
There were three sub-variants for low altitude (LF Mk VIII), medium altitude (F Mk VIII) and high altitude (HF Mk VIII) which were powered respectively by the Merlin 66, Merlin 63 and Merlin 70 engines. [23] Spitfire Mark VIII taxies to the end of the Red Road airstrip in Calcutta, India.
Further improvements were introduced throughout the Merlin range: 1943 saw the introduction of a Bendix-Stromberg pressure carburettor that injected fuel at 5 pounds per square inch (34 kPa; 0.34 bar) through a nozzle directly into the supercharger, and was fitted to Merlin 66, 70, 76, 77 and 85 variants.
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 ...
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 ...
A total of 287 Mk 22s were built: 260 at Castle Bromwich and 27 by Supermarine at South Marston. [46] The Mk 22 was used by only one regular RAF unit, 73 Squadron [47] based on Malta. However 12 squadrons of the Royal Auxiliary Air Force used the variant and continued to do so until March 1951. The Mk 22 was also used at Flying refresher schools.
The Beast (mk2) at Wings and Wheels in 2014.. In the 1960s, engineer Paul Jameson put a Rolls-Royce Meteor engine into a chassis he built himself. [3] He did not get around to building a body, and sold the car to Epsom-based automatic transmission specialist John Dodd, who had supplied the automatic gearbox.
Supermarine Spitfire; Supermarine Spitfire (early Merlin-powered variants) Supermarine Spitfire (late Merlin-powered variants) Supermarine Spitfire (Griffon-powered variants) Supermarine Seafire; Supermarine Spitfire prototype K5054; Supermarine Aircraft Spitfire