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

Cheers Phoenix Thats what I was after I know of the CA-15 (witness the quiz thread) but strangely never thought to check up on its performance before.


I knew of the Tu-114 too, but it is a turb-prop, not piston powered.

As impressive as the D0335 was however I still maintain that this was the fastest production piston fighter

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.