Search results
Results from the WOW.Com Content Network
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 ...
The performance increase was described by Jeffrey Quill as a "quantum leap" over that of the Mk Vb and another Spitfire airframe, R6700 was modified to take the new engine. Although design work on the Mk VII and VIII series was under way, these would take over a year to get into production and a counter to the Fw 190 was urgently needed.
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."
A.P 1565B Spitfire IIA and IIB Aeroplanes: Merlin XII Engine, Pilot's Notes (July 1940). London: Air Data Publications, 1972 (reprint). ISBN 0-85979-043-6. Air Ministry. 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 ...
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)
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
First of specialised engines for Spitfire Mk V variants and early Seafires. Merlin 45M 1,230 hp (917 kW) at 3,000 rpm 1,585 hp (1,182 kW) at 3,000 rpm, +18 psi (124 kPa) boost, 2,750 ft (838 m) Spitfire LF Mk.V: Version of Merlin 45 with "cropped" (smaller diameter) supercharger impeller allowing greater boost at low altitudes. Merlin 46