초록 ▼

Each engine of a multi-engine aircraft is monitored to determine if it has become inoperative during a critical flight mode such as takeoff or landing. If so, the propeller of the inoperative engine is feathered and the remaining engine or engines is uptrimmed. A “state machine”indicative of the var

Each engine of a multi-engine aircraft is monitored to determine if it has become inoperative during a critical flight mode such as takeoff or landing. If so, the propeller of the inoperative engine is feathered and the remaining engine or engines is uptrimmed. A “state machine”indicative of the various states of the aircraft is established and the present state of the aircraft is stored in a non-volatile memory; if an electrical power interruption occurs during a critical flight mode the identity of the present operating state may be quickly recalled for immediate refeathering of an inoperative engine and reuptrimming of the remaining engine or engines.

대표청구항 ▼

A method of controlling an aircraft, comprising the steps of: monitoring one or more parameter signals indicative of one or more corresponding parameters relating to said aircraft; identifying a present state of said aircraft according to predefined state criteria defined by the magnitudes of one or

A method of controlling an aircraft, comprising the steps of: monitoring one or more parameter signals indicative of one or more corresponding parameters relating to said aircraft; identifying a present state of said aircraft according to predefined state criteria defined by the magnitudes of one or more of said monitored parameter signals, said present state being one of a plurality of predefined operating states of said aircraft; storing said present state signal in a nonvolatile storage medium; providing one or more control signals for said aircraft at least partially in response to said present state signal; and checking for the presence of electrical power, and, upon detection of a restoration of electrical power after an interruption, retrieving said stored present state signal from said nonvolatile storage medium and providing one or more control signals to said aircraft at least partially in response to said retrieved present state signal.