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Originally posted by waynos
Can anyone come up with a verifyable piston fighter capable of more than 494mph?
Originally posted by shots
According to aerospace.org the official highest speed record (piston Poswered) is held by a Grumman F8F Bearcat 528.33 mph Record was set on 21 August 1989.
On the afternoon of May 25 1948 a silver aircraft flew over Melbourne at an unprecedented 502mph. This aircraft carried a number of innovative design features, performed very well, and was considered by many people to be the ultimate piston engined fighter. The brainchild of Lawrence Wackett, . of the Commonwealth Aircraft Corporation (C.A.C) it was totally Australian in design and manufacture. It was the CA-15.
The Do-335 was one of a small group of aircraft marking the pinnacle of international piston-engined development. It was the fastest production piston-engined fighter ever built, attaining 846 kilometers per hour (474 mph) in level flight at a time when the official world speed record was 755 kph (469 mph). Powered by two 1800-hp engines in a unique low-drag configuration and weighing 9600 kg (21,000 lb) loaded, it was an exceptional heavy fighter. This very innovative design also featured an ejection seat, for pilot safety, and a jettisoning fin
After setting a number of records, including a speed record for fastest turboprop-powered aircraft that still stands today, the first of 31 Tu-114s entered service with Aeroflot. The enorous plane was used on long-range domestic and international routes. Among the cities served by the Tu-114 were Delhi, Havana, Montreal, Paris, and Copenhagen. Additional flights were made to Tokyo in operated jointly with Japan Air Lines and flown by mixed Soviet-Japanese crews.
Max Level Speed at altitude: 540 mph (870 km/h) at 26,250 ft (8,000 m), Mach 0.78
The demonstration led to an order for two prototypes in June 1943 under Specification "12/43". The first prototype performed its initial flight on 28 July 1944, with Geoffrey de Havilland JR at the controls. The prototype was in the air only 13 months after the beginning of the detailed design effort. Performance exceeded predictions, with a top speed of 780 KPH (485 MPH) and a blazing climb rate of 1,370 meters (4,500 feet) per minute. A production order followed.
The P-47M was, essentially, developed collaterally with the XP-47J. The "J" was fitted with a high output version of the P&W R-2800. Specifically, the R-2800-57. This engine made 2,800 hp @ 2,800 rpm at 35,000 feet. This is in War Emergency Power. The aircraft actually attained 507 mph at an altitude of 34,300 feet.
On 12 December 1942 Philip Lucas reached 575 mph (mach 0.76)at 20,000 feet in a full throttle dive from 27,000 feet in the prototype Tempest V. Thereafter tests were flown on production aircraft, often firring their guns in dives at around 550mph to see if the wings came off
....diving trials with spitfire PR.XI's in the late summer of 1943.......sqn leader James Tobin recorded Mach 0.92 between 25,000 and 30,000 feet (a figure later amended to Mach 0.90, but still a speed of around 650mph TAS); of course no spitfire would have retained its wings had it fired its guns at this speed.