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In the late 1930s, more modern gliders with improved aerodynamics were developed in various Soviet cities, designed to set new competition records. Among these models was the JAI-9 (Russian: ХАИ-9) single-seat monoplane glider designed by AV Kovalenko built by JHA students in 1937.
The JAI-9 wing presented a cantilever configuration with high aspect. In the JAI-9, for the first time, the TsAGI flaps were installed. It is worth noting the JAI-9 high wing loading.
The pilot was located in a cockpit closed by a transparent cover, which barely protruded in the contours of the glider's fuselage.
The tests showed that the JAI-9 flew well and was easy to control in the air.

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