Properties:

A group of items which when attached to a flight simulator shall produce realtime out of the window scenes of lights and surfaces represinting the visual environment. These scenes shall change with and be dictated by real-time progress of the simulated aircraft flight path. Day/dusk/night ambient illumination, landing light illumination and weather effects shall be simulated. May include but not limited to electronic interface subsystem, an image generator subsystem, an image display subsystem, data base, and operating, maintenance, and modeling software, and the like.