AIRCRAFT STALL WARNING/PROTECTION WITH TIME-VARYING MAXIMUM ANGLE OF ATTACK SETTINGS FOR ICING CONDITIONS

摘要

This non-limiting technology proposes to modify the maximum angle of attack setting (α_setting) of the Stall Protection or Stall Warning Systems continuously or continually, according to the elapsed time since icing is first detected and/or the deicing system was activated. A changing maximum angle of attack setting maintains approximately the same angle-of-attack margin to the stall angle-of-attack by taking into account improvements in the stall angle of attack due to inflight icing removal and icing prevention by operation of an inflight deicing system. The aircraft flying with an angle of attack closer to the critical angle of attack is capable of producing a higher coefficient of lift.