F-16 and A-10 Diffraction Optics Head Up Display (HUD) Flight Test Evaluation,

Advances in avionic systems and display technologies that provide a night attack capability require an approach to testing that is markedly different from the classical flight test approach. Improvements in computers, sensors and cockpit displays have dictated innovative test planning to insure that all integrated system performance requirements are fully addressed. Introduction of Wide Field-of-View WFOV diffraction optics Head up Displays HUDs provide potentially more capability than has been previously available. A direct head-up, pilot-to-real-world interface via video raster and stroke written symbology permits low level maneuvering flight at night and provides at least a survivable capability. Integration of the WFOV HUD with the F-16 and A-10 aircraft provides a potentially useful capability that could make single seat night attack a realistic and effective alternative. This paper examines the major planning activities and test results of the F-16 and A-10 HUD evaluations and provides a synopsis of relevant test procedures and test techniques applicable to HUD testing in general and night video raster testing in particular. The unique test requirements and safety aspects of night attack system testing are also addressed.