Abstract: The systems and methods of the present disclosure generally provide a plurality of onboard and off board positioning, anti-collision, and path following systems that may provide an accurate picture of where each aircraft, proximate a given airport, is located at any given moment in time. The systems and methods may also include determining what obstacles are around each aircraft, and what path the aircraft should follow while taxiing around the airport. Any given aircraft may be automatically navigated along a determined route using at least one engines-off taxiing system.

Abstract: A brake monitoring system comprises a wear pin that is operatively connected to a brake to be monitored, wherein the wear pin can translate along a longitudinal axis of the wear pin and not rotate about the longitudinal axis; a wear gear rotationally affixed to the wear pin to enable the wear gear to rotate as the wear pin translates; and a counting device operatively adjacent the wear gear, wherein the counting device measures one of an amount of rotation of the wear gear and a rate of rotation of the wear gear.

Abstract: A brake monitoring system comprises a wear pin that is operatively connected to a brake to be monitored, wherein the wear pin can translate along a longitudinal axis of the wear pin and not rotate about the longitudinal axis; a wear gear rotationally affixed to the wear pin to enable the wear gear to rotate as the wear pin translates; and a counting device operatively adjacent the wear gear, wherein the counting device measures one of an amount of rotation of the wear gear and a rate of rotation of the wear gear.