TACTILE SYSTEM FOR AIDING A HELICOPTER PILOT IN MAKING SOFT LANDINGS

摘要

A tactile warning system for warning a helicopter pilot of a pre-selected altitude during a landing maneuver includes a collective control arm for control of the aircraft and a tactile warning device operatively connected to the collective control arm. The system includes a radio altimeter for sensing the actual altitude, a computer and keyboard for inputting a pre-selected height above the ground into the computer memory. A signal generator generates a signal indicative of the actual altitude as the aircraft approaches the ground. Then, when the actual altitude is equal to or less then the pre- selected altitude the system activates the tactile device. The warning system indicative of reaching a pre-selected height is also combined with a tactile warning system for avoiding "hot starts" and for avoiding other dangerous conditions.