Aircraft power plant, an aircraft, and a method of piloting said aircraft

摘要

An aircraft power plant (2) having at least two engines (3, 4), each co-operating with respective control means (5) including respective memories (6), each memory (6) containing information for causing said engine (3, 4) to operate with a plurality of distinct utilization envelopes at iso-damage. Said power plant (2) includes determination means (10) for determining a first utilization envelope (101) for application during a takeoff stage of flight and a second utilization envelope (102) for application during a cruising stage of flight following the takeoff stage of flight, and a third utilization envelope (103) for application during a landing stage of flight following the cruising stage of flight.

主权项

1. An aircraft power plant having at least two engines, each engine controlled by with respective control means including a memory, each memory containing information for causing the engine to operate with a plurality of distinct utilization envelopes at iso-damage, each utilization envelope having at least two distinct contingency utilization ratings for use by an engine operating in the event of a failure of at least one other engine, and each defined by a developed contingency power and by a duration of utilization for the contingency power, wherein the power plant includes determination means for determining a first utilization envelope for application during a takeoff stage of flight and a second utilization envelope for application during a cruising stage of flight following the takeoff stage of flight, and a third utilization envelope for application during a landing stage of flight following the cruising stage of flight, the determination means communicating with each of the control means to specify which first utilization envelope, second utilization envelope, and third utilization envelope are to be used during the flight, each memory including instructions enabling the control means to apply the utilization envelope that corresponds to a current stage of flight in order to control the at least two engines.