Su-4, P.O.Sukhoj

Version of the Su-2 re-engined with the 2100hp M-90 engine.

Aircraft was flown in December 1941, but never went into production because engine remained experimental and was never adopted for mass manufacturing. Plus persisting tuning problems.

One built.

  • Enzo Angelucci, Paolo Matricardi "Combat Aircraft Of World War II" Vol. IV, 1940-1941, ISBN 0-517-56843-8;

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  • Su-4, Sukhoi
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