Patent ID: 9409654
Filing Date: 2016-08-09
CPC Classification: B64D

Claim Text:
1. A method for generating a low airspeed warning in an aircraft, the method comprising: receiving engine thrust data; receiving aircraft altitude data; determining, in a processor, when the aircraft altitude is within a predetermined altitude band; and, when the aircraft altitude is within the predetermined altitude band, (i) determining, by the processor, a low airspeed threshold that is a function of engine thrust, and (ii) generating a low airspeed alert indicative of the low airspeed threshold, wherein generating a low airspeed alert comprises receiving, in the processor, a stick shaker speed; receiving, in the processor, a minimum operating speed; and determining, by the processor, when engine thrust is below a predetermined minimum thrust; and when engine thrust is below the predetermined minimum thrust, modifying a combination of the minimum operating speed and the stick shaker speed by a first scale factor equal to a first predetermined value.