Homebuilt coaxial-rotor helicopter. Your browser does not support the video tag. Previously: Breguet G.111 coaxial rotor helicopter - photos Sikorsky H-2 coaxial rotor helicopter - photo de Lackner HZ-1 personal helicopter - photo and video Electric eight-rotor personal aircraft - GIF Farmer-built aircraft - photos
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nova_robotics (Oct 19, 2023), Ralphxyz (Oct 22, 2023)
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