AIRCRAFT LANDING AID VISUAL INDICATOR DEVICE AND METHOD FOR GUIDING AIRCRAFT LANDING

Described is a visual indicator device for landing aircraft (2) on the deck (3) of a ship (4), comprising a unit for measuring the instantaneous rolling motion angle of the ship (4), a light projection apparatus (6) designed to project, on a non-horizontal wall (5) of the ship (4), at least a first rectilinear segment (7) representing the horizon line.