Patent ID: 11891166
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 15:
16. An aircraft comprising:
a first rotor and a second rotor;
means for providing thrust;
first means for generating power, the first power generating means to transition between (a) a first state in which the first power generating means is to drive rotation of the first rotor to control a rotational speed of the first rotor, (b) a second state in which the first power generating means is to refrain from controlling the rotational speed of the first rotor when the first rotor is autorotating during flight of the aircraft, and (c) a third state in which the first power generating means is to increase drag on the first rotor to control the rotational speed of the first rotor when the first rotor is autorotating, the first power generating means to refrain from driving the rotation of the first rotor when the first power generating means is in the third state, the first means for generating power to operate in the third state when transitioning from the first state to the second state; and
second means for generating power, the second power generating means to control a rotational speed of the second rotor,
the thrust providing means, the first power generating means, and the second power generating means to adjust rotation of the aircraft relative to one or more axes based on a thrust generated by the thrust providing means when the first power generating means has transitioned from the second state to the third state.