A RC helicopter is not a toy. Helicopter blades are really dangerous, and a helicopter is at least 10 times harder to control than a quad drone. Flying a RC helicopter is like balancing a stick on your finger, with strange inertia and with optical feedback only. The drones have built-in stabilization circuits, but this is optional (and quite expensive) for RC helicopters. Most RC helicopters cannot hover by themselves, the hovering is actively controlled by the handler at all times.
The blades are long, very strong (usually carbon fiber) and the linear speed at the end point can reach more than 100km/h. Even a smaller 450-class RC helicopter blade can break a bone, and that was a class 700 one. Compared to that, the small drones are realy friendly - most of the drone propellers can be stopped by a finger without getting hurt.
The blades are long, very strong (usually carbon fiber) and the linear speed at the end point can reach more than 100km/h. Even a smaller 450-class RC helicopter blade can break a bone, and that was a class 700 one. Compared to that, the small drones are realy friendly - most of the drone propellers can be stopped by a finger without getting hurt.