Patent ID: 9174742
Filing Date: 2015-11-03
Classification: B64D,G01C,G05D

Abstract:
1. A method to assist piloting of an aircraft, according to which a trajectory pointer representing a current flight trajectory vector and a pitch pointer indicating a current pitch angle value are shown on a pitch scale of a display screen, including the following steps: determining a pitch angle limiting value representative of a maximum admissible angle of attack, depending on a set of flight parameters and aircraft configurations, and displaying on the pitch scale of the display screen a maximum angle of attack pointer indicating the pitch angle limiting value and a dynamic safety envelope indicator, wherein the dynamic safety envelope indicator includes a graphical representation such that the maximum angle of attack pointer and trajectory pointer form upper and lower limits, respectively, with two vertical lines, each vertical line extending from an end of the maximum angle of attack pointer toward the trajectory pointer and the dynamic safety envelope being representative of a normal flight of the aircraft; wherein the display of one of the maximum angle of attack pointer and the said dynamic safety envelope indicator is shown using different colors, including a first color representing a normal flight situation, a second color representing a situation where a stall is imminent, and a third color representing a stall.