Aircraft collision avoidance systems

aircraft collision avoidance system which actively interrogates other aircraft transponders

aircraft system which detects when there is a danger of flying into terrain features and warns crew

avionics system to identify and report the presence of nearby aircraft that present a collision risk

thumb|right|FLARM Logo FLARM is a proprietary electronic system used to selectively alert pilots to potential collisions between aircraft. It is not formally an implementation of ADS-B, as it is optimized for the specific needs of light aircraft, not for long-range communication or ATC interaction. FLARM is a portmanteau of "flight" and "alarm". The installation of all physical FLARM devices is approved as a "Standard Change", and the PowerFLARM Core specifically as a "Minor Change" by the European Union Aviation Safety Agency; and in addition the Minor Change also approves the PowerFLARM Core

set of technologies that use 3D in cockpit displays

aircraft system for detecting when the flight path may lead to a ground collision and warns crew