The Mikoyan-Gurevich Ye-8 was a supersonic jet fighter developed in the Soviet Union , intended to replace the MiG-21 (originally named MiG-23 ). Only two prototypes were built in 1960–61. The original MiG-21's air intakes were moved under the fuselage, freeing up the nose where a larger and more powerful radar , able to deliver longer range air-to-air missiles , could be built in. Canards were built to both sides of the nose, in front of the cockpit , (the horizontal stabilizers of MiG-21 were left at their original position).
4-495: The two prototypes flew in 1962. On 11 September 1962, the Tumansky R-21F-300 engine, also under development, exploded in midair at a speed of Mach 2.15. Test pilot Georgy Konstantinovich Mosolov , then one of the leading Soviet test pilots , was severely injured by debris from the compressor and had to eject at Mach 1.78. Due to unsolved technical problems, the aircraft's development was abandoned; some parts were used on
8-610: A new afterburner chamber and variable exhaust nozzle. The increased pressure ratio and turbine inlet temperature required components to be fabricated from advanced alloys. Several contemporary Soviet aircraft were planned to use the R-21, including the Sukhoi T-58 , Sukhoi T-6 and the Mikoyan-Gurevich Ye-8 . On September 11, 1962 an R-21, fitted to a Ye-8, exploded in mid-air after compressor failure; test pilot Georgy Mosolov survived
12-470: The MiG-23 , including R-23 missiles and their associated Sapfir-23 radar. Data from MiG: Fifty Years of Secret Aircraft Design General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era Related lists Tumansky R-21 The Tumansky R-21 was a Soviet turbojet engine of the 1960s. Used for development only,
16-459: The project was canceled. The Tumansky R-21 was developed at Tushino motor plant (part of OKB-300), headed by Nikolai Georgievich Metskhvarishvili , as a twin-spool axial-flow afterburning turbojet. It was based on the Tumansky R-11 with the goal of increasing thrust and airflow, using a new six-stage compressor with a larger diameter and different rotor blades than its predecessor as well as
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