Abstract:
A fire control system (55) azimuth command and elevation command provides a flight control system attitude reference in response to operation of the flight control system in a coupled aiming mode. The coupled aiming mode is engaged in response to the continuous operation of a pilot switch (920), the azimuth command and elevation command being below respective threshold magnitudes (940, 941), and the operation of the fire control system (55). During operation in the coupled aiming mode, the azimuth command and elevation command replace the yaw attitude feedback error signal and pitch attitude error signal, respectively, as the aircraft attitude reference. During integration of the fire control system and the flight control system, the flight control system is made less sensitive to small pilot command stick inputs below a stick input threshold magnitude, so that small or inadvertent pilot commanded yaw and pitch maneuvers will not affect the yaw and pitch attitude reference commanded by the fire control system azimuth and elevation commands. However, intended pilot commanded yaw and pitch maneuvers (70) maintain full authority at all times.
Abstract:
Système de commande de vol pour hélicoptère comportant un système de coordination automatique de virage qui fournit un signal coordinateur de commande de lacet au rotor arrère de l'hélicoptère. Sur commande, le système met en mémoire une assiette (par ex., signaux indicateurs de l'angle d'inclinaison latérale, vitesse au sol latérale et accélération latérale) qui permet de fournir une coordination automatique de virage, donnant ainsi au pilote une coordination automatique de virage sur des assiettes autre que celle où l'aéronefs reste horizontal.