ARP292C Environmental Control Systems for Helicopters

Reaffirmed

12/05/2014

Features
Issuing Committee
Scope
Content
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:
  1. a
    A controlled fresh air supply
  2. b
    A means for cooling (air or vapor cycle units and heat exchangers)
  3. c
    A means for removing excess moisture from the air supply
  4. d
    A means for heating
  5. e
    A temperature control system
  6. 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. The integration of NBC protection into aircraft ECS is discussed in AIR4362.
Meta TagsDetails
DOI
https://doi.org/10.4271/ARP292C
Pages
54
Citation
SAE International Recommended Practice, Environmental Control Systems for Helicopters, SAE Standard ARP292C, Reaffirmed December 2014, Revised January 1998, Issued December 1954, https://doi.org/10.4271/ARP292C.
Additional Details
Publisher
Published
Dec 5, 2014
Product Code
ARP292C
Content Type
Recommended Practice
Status
Reaffirmed
Language
English

Revisions