Structure and control system of an aircraft equipped with rotors for lift and vertical flight, and with a pusher-propeller for horizontal thrust

摘要

The invention concerns a rotary-wing aircraft equipped with counter-rotating coaxial rotors for lift and vertical flight, and with a pusher-propeller for horizontal thrust. Both the devices are operated by means of only one power unit. The flight conditions are obtained by the joint use of the collective pitch change of the rotors and the pitch change of the propeller.