Helicopter integrated fire and flight control system having turn coordination control

Abstract From the Canadian patent

During operation of a flight control system in a coupled aiming mode, wherein a fire control system (55) azimuth command and elevation command provide an aircraft attitude reference a bank angle, calculation function (1077) provides a bank angle signal to place the aircraft in a roll angle which results in a substantially coordinated turn. The bank angle signal is determined primarily as a function of an aiming line of sight heading rate for small azimuth commands, and is determined primarily as a function of aircraft heading rate for large azimuth commands. Additionally the, bank angle initially comprises a component as a function of aircraft lateral acceleration for driving aircraft …