MIL-STD-1179 Lamps, Reflectors And Associated Signaling Equipment For Military VehiclesThis standard applies to all military combat, special purpose and tactical transport vehicles, both tracked and wheeled. Administrative and commercial vehicles are not within the scope of this standard, since total compliance with Motor Vehicle Safety Standard MVSS No. 108 is required for these vehicles. Infrared secure lighting photometric requirements apply to new military vehicles starting with serial number 1 manufactured after September 1, 1988. Retrofit, rebuild, or other modifications of military vehicles built before September 1, 1988 will conform to Secure Lighting Requirements upon determination of need and discretionary judgment by the appropriate modifying Government agent.

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MIL-STD-1179E

FIGURE 3.  Sum of the percentages of grouped minimum candlepower.

4.2  Vehicle lighting equipment location.

4.2.1  Headlamp location.  Headlamps shall be located on the front of the vehicle and as shown in tables II, IV and V so that they will clear all portions of the vehicle and its appurtenances.

4.2.2  Lamp and reflector location.  Lamps and reflectors shall be located so that their beam pattern and visibility shall be unobstructed by any part of the vehicle, throughout the range of the photometric and visibility angles specified.  Lamps and reflectors shall not be mounted on extension brackets or in any other manner that will increase their damage potential beyond that of lamps and reflectors mounted directly on the vehicle.

4.2.3  Service lighting equipment location.  When lamps, reflective devices, and associated signaling equipment are required to be "within X inches of the extreme edge of the vehicle" or "within X inches of the extreme front (rear) of the vehicle", measurements shall be taken as follows:

a.   Measurements from the extreme edge of the vehicle shall be from a vertical plane tangent to the outer edge of the vehicle (exclusive of signal lamps, marker lamps, outside rear view mirrors, with doors and windows closed and wheels in a

straight-ahead position) and parallel to the longitudinal axis of the vehicle, to the outboard edge of the luminous surface of the lamp or reflector, or where a multiple-compartment lamp or multiple lamps are used, to the outboard edge of the luminous surface of the outermost compartment or lamp.

b.   Measurements from the extreme front (rear) edge of the vehicle shall be from a vertical plane tangent to the extreme front (or rear) edge of the vehicle (exclusive of winch projections or trailer tongues) and perpendicular to the longitudinal axis of the vehicle, to the front (or rear) edge of the luminous surface of the lamp or reflector, or where a multiple compartment lamp or multiple lamps are used, to the front (or rear) edge of the luminous surface of the forward (or rearward) compartment or lamp.

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