Driving rear rotor of model helicopter involves driving rear rotor directly with electric motor and moving at least one blade relative to center piece by varying revolution rate of rear rotor

摘要

The method involves driving the rear rotor directly with an electric motor and moving at least one blade relative to a center piece by varying the revolution rate of the rear rotor. The rear of the model helicopter is controlled by increasing or reducing the revolution rate of the electric motor drive (R). An independent claim is also included for the following: a model helicopter.