Category: USSR
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Polikarpov I-153DM Ramjet Powered Biplane
Polikarpov I-153DM Ramjet Powered Biplane The Polikarpov I-153DM was one of the Soviet Union’s most unusual experimental fighter aircraft, combining the proven Polikarpov I-153 “Chaika” biplane with pioneering ramjet propulsion. The suffix DM, short for Dopolnityelnyi Motor (“supplementary engine”), referred to the installation of two underwing ramjet engines designed to boost the aircraft’s speed without… Read more
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Nikitin-Shevchenko IS Polymorphic Fighter
Nikitin-Shevchenko IS Polymorphic Fighter The Nikitin-Shevchenko IS (Istrebitel Skladnoi – “Folding Fighter”) was one of the most unconventional Soviet fighter aircraft projects of the Second World War era. Designed by Vasily Nikitin and test pilot Vladimir Shevchenko, the aircraft was conceived in the late 1930s as a “polymorphic fighter” capable of transforming between a biplane… Read more
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Sukhoi Su-15 (1949)
Sukhoi Su-15 (1949) The Sukhoi Su-15 was an early Soviet jet fighter prototype developed in the immediate post-war period. It must be distinguished from the later supersonic interceptor that shared the same designation. One of the most distinctive aspects of the Su-15 lay in its propulsion arrangement. It was powered by two Klimov RD-45 turbojets,… Read more