The Sukhoi Su-6 was a Soviet ground-attack aircraft developed during World War II. The mixed-power (rocket and piston engines) high-altitude interceptor Su-7 was based on the single-seat Su-6 prototype. == Design and development == Development of the Su-6 began in 1939, when the Sukhoi design bureau began work on a single-seat armoured ground-attack aircraft.
The Sukhoi Su-6 was a Soviet ground-attack aircraft developed during World War II. The mixed-power (rocket and piston engines) high-altitude interceptor Su-7 was based on the single-seat Su-6 prototype. == Design and development == Development of the Su-6 began in 1939, when the Sukhoi design bureau began work on a single-seat armoured ground-attack aircraft.
Source: Wikipedia "Sukhoi Su-6" · CC BY-SA 4.0
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