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Nikitin-Schyevchyenko IS

The Nikitin-Schyevchyenko IS series, (Istrebitel Skladnoi – folding fighter), were single seat polymorphic fighters designed and produced in the USSR from 1938.

 

A test pilot in Nikitins bureau decided to look in to the feasibility of an aircraft, that took off and landed as a bi plane but which had the ability for the lower wing to fold into the upper- offering increased speed and maneuverability as well as STOL capabilities. The first version was to be armed with 4 ShKas machine guns, when development continued this was changed to 2 ShKas and 2 Berezin UB, and the final version was intended to have tricycle landing gear. However, there were man design problems and the design afforded no more performance than fighters then entering production, namely the Yak 1, Mig 1, and Lagg-1.

 

Among other problems that the plane had, the lower wing became stick inside of the top wing on a few test flights and because the landing gear was mounted in this lower wing, belly landings had to be made.

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Uploaded on July 2, 2016