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A solid-state external lighting system modification for the KC-135

This paper documents the development and demonstration of a solid-state NVIS-friendly visible and near-IR external lighting system modification for the KC-135. The system addresses current needs of tanker aircraft during night air-toair refueling operations, and consists of solid-state visible and near-IR light-emitting diode based programmable replacements for selected existing incandescent lights on the exterior of the aircraft. The system utilizes a novel means of controlling output modes from light fixtures, is rapidly installable at the unit level, and entails only form-fit replacement of existing controls and light fixtures while utilizing only existing mounting provisions and wiring in the aircraft. Although the current design is specific to the KC-135, the system principle is applicable for installation or retrofit to any aircraft. The genesis of the concept, component design, integration on a KC-135 test aircraft platform, and the results of ground demonstration assessment are described.