MIL-H-18325B, MILITARY SPECIFICATION: HEATING AND VENTILATING SYSTEMS, AIRCRAFT, GENERAL SPECIFICATION FOR (04-MAY-1959) [NO S/S DOCUMENT]

MIL-H-18325B, MILITARY SPECIFICATION: HEATING AND VENTILATING SYSTEMS, AIRCRAFT, GENERAL SPECIFICATION FOR (04-MAY-1959) [NO S/S DOCUMENT]., This specification covers the general requirements for aircraft heating and ventilating systems.