Environmental Control Systems for Helicopters
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Product Code: ARP292
Revision Number: C
Date Published: 1998-01-01
Date Reaffirmed: November 2008
Issuing Committee:
Ac-9 Aircraft Environmental Systems Committee
Scope
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 th eoccupied 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 when 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.o aircraft ECS is discussed in AIR4362.
Product Status: In Stock
File Size:
757K
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| Current & Historical versions of this standard |
|---|
| Standard |
Date published |
?Status |
| ARP292C |
1998-01-01 |
Reaffirmed |
| ARP292B |
1970-10-26 |
Revised |
| ARP292 |
1954-12-01 |
Issued |
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