Patent ID: 11926443
Assignee: EFIX AVIATION LTD
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. A method for operating a rotorcraft comprising the steps of:
a) providing a rotorcraft having:
a fuselage,
at least three rotor system arms mounted on the fuselage,
each rotor system arm having a rotor system displaced from the fuselage, each rotor system including a mast having at least two rotor blades and an electric rotor motor coupled to the mast for driving the mast whereupon said at least two rotor blades act as a rotating rotor disc,
each rotor system of the at least three rotor systems having an individually controllable collective rotor blade pitch,
at least one rotor system of the at least three rotor systems having a controllable cyclic rotor blade pitch,
a forward propulsion unit mounted on the fuselage for providing forward propulsion to the rotorcraft; and

b) controlling the at least three electric rotor motors, the collective rotor blade pitch of each rotor system of the at, least three rotor systems, the cyclic rotor blade pitch of the at least one rotor system of the at least three rotor systems, and the forward propulsion unit in response to an input control indicating a desired maneuver to operate the rotorcraft for takeoff, gyro-cruising for straight and level forward flight, and landing,
wherein, after takeoff the controlling of the rotorcraft includes simultaneously pitching the rotorcraft upwardly and driving said forward propulsion unit, thereby at least partially autorotating the at least three rotor systems for said gyro-cruising for straight and level forward flight,
each said rotor system of said at least three rotor systems continuously rotating in the same direction for takeoff, gyro-cruising for straight and leveled flight, and landing.