A system and a method for automatic air collision avoidance

A method for avoiding collisions between own aircraft (1; 2) and one or more other aircraft (1; 2), each aircraft (1; 2) an automatic collision avoidance, wherein the method comprises : - computing (22) a flight path separation (5; 6) for own aircraft, wherein the flight path of separation (5; 6) is a prediction of the space within which the aircraft can be located with a certain probability if an avoidance maneuver occurs, and wherein the flight path of separation (5; 6) is computed with a predetermined frequency and based on a flight path separation received from other aircraft, - sending (23) of the own flight path separation to the other aircraft, - receiving (20; 29) of the flight paths of separation from the other aircraft, - detecting (28) a collision looming on the basis of own flight path separation and flight paths of separation from other aircraft, and - activation (32) of an avoidance maneuver after detecting an approaching collision, - characterized in that said detection a collision looming is based on the maneuvers of own aircraft commanded you during the time between sending the proper flight path computed separation to other aircraft and detecting the approaching collision.