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Yeair! hybrid gasoline/electric quadcopter boasts impressive numbers | Quadcopter, Drone quadcopter, Hybrids
The DroneHub - Introducing Yeair, the first gas powered quadcopter by the German manufacture Airstier. By using 4 combustible engines Yeair is capable of 60 min flight time, 100km/62 mph, 55km/34 mile
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