MIL-T-81571, MILITARY SPECIFICATION: THERMAL PROTECTIVE SYSTEMS, AIRCRAFT COCKPIT: GENERAL SPECIFICATION FOR (28 DEC 1967) [NO S/S DOCUMENT]., The purpose of this specification is to cover the requirements of a protective system which are installed in an aircraft as part of the airframe and airborne equipment to provide quick and positive protection automatically and/or manually to the aircrew members and their stations from the thermal radiation and luminous effects of nuclear weapon detonations. This specification does not cover such components as sensors and aircrew personal equipment which are part of the composite flash/thermal protective system.