Aircraft Lighting Systems

Current aircraft lighting systems design involves both consideration of unaided eye viewing as well as compatibility with night vision goggles (NVG). The prospective lighting systems engineer must have knowledge of photometrics and radiometrics as well as an understanding of the NVG’s electro-optical characteristics. In checking a preliminary design concept, laboratory mock-ups must be performed using NVGs in conjunction with empirical test methods. Quantitative parameters are then established which allow preliminary specifications to be generated. A flightworthy mock-up should be built to provide dynamic verification of design concept. Applying this basic process to the UH-60A night vision lighting development program has resulted in some important findings. In particular the use of red light for warning indicators is permissible if modified to incorporate an infrared blocking filter. Also some general guidelines for infrared exterior lighting and interior blue-green integral lighting have emerged.