The Zhukovsky Central Aerohydrodynamic Institute (TsAGI) together with VR-Technologies Design Bureau of the Russian Helicopters Holding held the second stage of aerodynamic trials of the lifting rotor of the light coaxial VRT500 helicopter, TsAGI said. Read full news at this link...
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A mock up of the VRT500 light helicopter unveiled at HeliRussia 2018 (Picture source : Rostec)
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