초록 ▼

A system for warning the pilot when the aircraft has reached a high yaw condition. A differential in pressure or angle of attack between the port and starboard sides of the aircraft is measured and converted into a measured sideslip angle. If the measured sideslip angle exceeds a predetermined maxim

A system for warning the pilot when the aircraft has reached a high yaw condition. A differential in pressure or angle of attack between the port and starboard sides of the aircraft is measured and converted into a measured sideslip angle. If the measured sideslip angle exceeds a predetermined maximum acceptable sideslip angle, a warning device, such as a rudder pedal shaker, is activated. The maximum acceptable sideslip angle is determined as a function of the ability of the aircraft flight controls to counteract a rolling moment generated by the yaw condition.

대표청구항 ▼

A method for providing a warning signal in an aircraft, having flight control surfaces for generating a rolling moment about an axis of the aircraft, of an excessive yaw condition, the method comprising the steps of: a. measuring yaw conditions of the aircraft while airborne and generating a first o

A method for providing a warning signal in an aircraft, having flight control surfaces for generating a rolling moment about an axis of the aircraft, of an excessive yaw condition, the method comprising the steps of: a. measuring yaw conditions of the aircraft while airborne and generating a first output of aircraft sideslip angles as a function of the measured yaw conditions; b. generating values of warning slideslip angles as a function of aircraft airspeed by determining projected rolling moments of the aircraft when the aircraft is at projected sideslip angles and projected aircraft airspeeds, the warning sideslip angles including those sideslip angles at which the projected rolling moments of the aircraft will equal or exceed a maximum counteracting rolling moment which can be generated by the aircraft flight control surfaces; c. comparing the measured sideslip angles with the warning sideslip angles; and d. generating the warning signal when at least one of the first output sideslip angles equals or exceeds the warning sideslip angles.