Patent ID: 8561939

Claim:
An apparatus comprising: an electric motor; a first drive train providing drive from the electric motor to a landing gear wheel; a second drive train providing drive from the electric motor for an aircraft system which is operational at least when the aircraft is in flight, the aircraft system including an environmental control system; a first coupling arrangement configured to connect and disconnect the first drive train; a second coupling arrangement configured to connect and at least partially disconnect the second drive train; and a control arrangement configured to control the first coupling arrangement and the second coupling arrangement such that the first drive train is connected when the second drive train is at least partially disconnected and the first drive train is disconnected when the second drive train is connected, control the first coupling arrangement to disconnect the first drive train when the aircraft is in flight and to connect the first drive train when the aircraft is on the ground such that the first drive train is configured to drive the landing gear wheel during taxiing, and at least partially disconnect the second drive train when the aircraft is on the ground and to connect the second drive train when the aircraft is in flight such that the second drive train is configured to provide drive for the environmental control system to pressurize the aircraft when the aircraft is in flight.