Utilization of Drones for Pipeline and Oil Field Infrastructure Inspe…
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
Yeair! is the next generation quadcopter solution. – yeair!
World's First Hybrid Gasoline/Electric Quadcopter Is Here