Collective pitch on a quadcopter is much simpler than it is on the main rotor of a traditional helicopter. R/C and full-scale helicopters mix collective and cyclic pitch to articulate the main ...

and Rod Anderson to claim the record was far from a spring chicken. In fact, it was Bell's very first helicopter model to be commercially produced, introduced in 1946. Specs-wise, it doesn't seem ...

To do this, he added four servos on each arm of the quad, giving each rotor collective pitch, just like the tail rotor of a real helicopter. The result is a quadcopter that can fly upside-down ...

As such, the forward recovery was adapted so pilots simultaneously put the helicopter into a nose-down attitude and brought the power up to 70% by raising the collective. In contrast, the Vuichard ...