METHOD AND SYSTEM FOR SETTING A ROTARY WING AIRCRAFT TO HOVER FLIGHT IN DIRECTIONAL STABILITY OR HEADING MODE BASED ON ITS FORWARD SPEED

摘要

The present invention relates to a method and a hovering system (1) for rotary wing aircraft (10). A first mode of operation makes it possible, when the longitudinal speed U x of said aircraft (10) is greater than a first threshold speed V threshold1, to approach a stop position S with a trajectory holding relative to the ground, the flight instructions of an autopilot (15) being a soil ground angle TK ground, a deceleration rate Ga of the forward speed Va of said aircraft (10), a slope P and a heading .PSI. second operating mode allows, when said longitudinal speed U x is less than a second threshold speed V threshold 2, to perform a hovering at said stop position S with a heading behavior, said flight instructions being said longitudinal speed U x, a lateral velocity V y, a vertical velocity W z and said heading .PSI., Said velocities U x, V y and W z being progressively reduced to zero speed after any action of a pilot of said aircraft (10) .