This ARP discusses design philosophy, system and equipment requirements, environmental conditions, and design considerations for helicopter environmental control systems (ECS). The helicopter ECS comprises that arrangement of equipment, controls, and indicators which supply and distribute dehumidified conditioned air for ventilation, cooling and heating of the occupied compartments, and cooling of the avionics. The principal features of the system are: a A controlled fresh air supply b A means for cooling (air or vapor cycle units and heat exchangers) c A means for removing excess moisture from the air supply d A means for heating e A temperature control system f A conditioned air distribution system The ARP is applicable to both civil and military helicopters where an ECS is specified; however, certain requirements peculiar to military applications, such as nuclear, biological and chemical (NBC) protection, are not covered.
SAE ARP292C-2014 history
2020SAE ARP292D-2020 Environmental Control Systems for Rotorcraft
2014SAE ARP292C-2014 Environmental Control Systems for Helicopters
1998SAE ARP292C-1998 Environmental Control Systems for Helicopters
1970SAE ARP292B-1970 Air Conditioning@ Helicopter@ General Requirements for
1961SAE ARP292A-1961 AIR CONDITIONING@ HELICOPTERS@ GENERAL REQUIREMENTS FOR
1954SAE ARP292-1954 AIR CONDITIONING, HELICOPTERS, GENERAL REQUIREMENTS FOR