초록 ▼

A windshear warning apparatus which separately compares a plurality of signals derived from horizontal and vertical inertial acceleration and air mass acceleration components to indicate incipient windshear. The compared signals are substantially equal under normal wind conditions but are significan

A windshear warning apparatus which separately compares a plurality of signals derived from horizontal and vertical inertial acceleration and air mass acceleration components to indicate incipient windshear. The compared signals are substantially equal under normal wind conditions but are significantly different under windshear conditions. A signal proportional to the product of the magnitude and rate of change of the total or resultant inertial acceleration of the aircraft is used to provide a warning of a significant windshear condition.

대표청구항 ▼

Windshear detection and warning apparatus for an aircraft having flight control instrumentation responsive to normal command signals for directing the aircraft along a predetermined flight path, said apparatus comprising means responsive to signals which vary in accordance with the vertical and hori

Windshear detection and warning apparatus for an aircraft having flight control instrumentation responsive to normal command signals for directing the aircraft along a predetermined flight path, said apparatus comprising means responsive to signals which vary in accordance with the vertical and horizontal components of aircraft acceleration relative to the ground and relative to the sustaining air mass for providing windshear warning signals proportional to deviations in excess of a predetermined value between said vertical components of said ground and air mass acceleration signals and between said horizontal components of said ground and air mass acceleration signals, means responsive to the angle of attack of the aircraft for providing a command signal corresponding to the maximum safe angle of attack of said aircraft, switching means for removing said normal command signal from said control instrumentation and for supplying said angle of attack command signal thereto, and means responsive to said windshear warning signals for signalling the operation of said switching means, wherein said windshear warning signals further include a component proportional to the magnitude and rate of rotation of a resultant acceleration vector derived by the vector addition of said vertical and horizontal components of said ground acceleration signals.