Quiet landing attitude modifier for airplane

摘要

The present invention provides a method of modifying the pitch attitude of an aircraft during landing, comprising: commanding the flaps to move to a landing setting; providing a current value for a flight condition parameter; providing a current flaps setting; comparing said current value to at least one threshold value; if said current value exceeds said threshold, determining a new flaps setting capable of producing an improvement in at least one of a selected aft body contact margin and a selected nose gear contact margin for the aircraft; and adjusting the flaps to said new flaps setting.

主权项

1. A method of modifying a pitch attitude of an aircraft during landing comprising:
commanding trailing edge flaps to move to a landing setting; providing a current value for a flight condition parameter; providing a current trailing edge flaps setting; comparing said current value of the flight condition parameter to a plurality of thresholds having an acceptable range between said plurality of thresholds; and if said current value of the flight condition parameter is outside the acceptable range: (1) adjusting the trailing edge flaps to a new flaps setting; (2) keeping the trailing edge flaps in the new flaps setting for a predetermined time period; and (3) after the predetermined time period if said current value of the flight condition parameter is outside the acceptable range and the trailing edge flaps are not in final trailing edge flap positions then repeating (1), (2), and (3) until the current value of the flight condition parameter is within the acceptable range or the trailing edge flaps are in the final trailing edge flap positions.