DEVICE FOR AIDING THE GUIDANCE OF A FOLLOWER AIRCRAFT FORMING PART OF A PATROL, AS WELL AS A SYSTEM FOR AIDING A PATROL FLIGHT COMPRISING SUCH A DEVICE

A device for aiding the guidance of a follower aircraft forming part of a patrol, as well as a system for aiding a patrol flight employing such a device has a calculation unit for determining: (1) a first flight trajectory allowing a follower aircraft to follow a main lead aircraft in accordance with a main patrol configuration and (2) a second flight trajectory allowing the follower aircraft to follow an auxiliary lead aircraft in accordance with an auxiliary patrol configuration.