Patent ID: 11905026
Assignee: ROLLS-ROYCE CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  G  Y | IPC B  G

Claim 12:
13. An airframe comprising:
a first electrical energy storage system (ESS) connected to a first electrical bus;
a second ESS connected to a second electrical bus;
a combustion motor configured to provide rotational mechanical energy to a first generator and a second generator, the first generator configured to convert the rotational mechanical energy into electrical energy for output onto the first electrical bus and the second generator configured to convert the rotational mechanical energy into electrical energy for output onto the second electrical bus;
a plurality of electrical propulsion units comprising:
a first set of electrical propulsion units connected to the first electrical bus; and
a second set of electrical propulsion units connected to the second electrical bus; and

a pilot interface comprising a respective control lever for each electrical propulsion unit of the plurality of electrical propulsion units, each of the respective control levers movable through a plurality of positions, the plurality of positions including:
a regeneration position;
an off position;
a maximum electric only position;
a maximum continuous dual source position; and
a maximum non-continuous dual source position.