Mikoyan-Gurevich Ye-8

The Mikoyan-Gurevich Ye-8 (Russian: Микоян и Гуревич Е-8) (originally named MiG-23) was a supersonic jet fighter developed in the Soviet Union, intended to replace the MiG-21. 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 installed on both sides of the nose, in front of the cockpit. They were installed to counteract the Mach Tuck Effect, which shifts the center of lift further back the faster the aircraft flies. And to increase the maneuverability, by increasing the pitch and roll rate through manipulation of the airflow over the wings, by changing the orientation of the canards. The horizontal stabilizers of MiG-21 were left at their original position. The Tumansky R-21F-300 engine, also under development, has been fitted.
The two prototypes flew in 1962. On 11 September 1962, the Tumansky R-21F-300 engine, 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...