A VISUAL GUIDANCE SYSTEM (VGS). THE FUNCTION OF THE VGC IS TO PRESENT AIRCRAFT PERFORMANCE AND CONTROL INFORMATION TO THE PILOT WITHIN THE FORWARD FIELD OF VIEW. THIS IS DONE BY PROJECTING A CRT GENERATED IMAGE INTO THE FIELD OF VIEW VIA A REFLECTING COMBINER, SHEET OF GLASS. THE VGS CONSISTS OF A MODULAR AVIONICS UNIT (MAU), OVERHEAD UNIT AND COMBINER. THE MAU IS THE COMPUTER THAT RECEIVES AND PROCESSES AIRCRAFT SENSOR DATA, PILOT INPUT ETC TO THE OVERHEAD UNIT.

CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. CN: 90142080, INSTRUMENTS AND APPIANCES FOR AERONAUTICAL NAVIGATION, OTHER THAN INERTIAL NAVIGATION SYSTEMS.