Standard:

• AIR1277

Reaffirmed:

• 1991-10-01

Revised:

• 1976-05-01

Revision:

• Historical. Access the latest revision: AIR1277B

Issuing:

• Ac-9 Aircraft Environmental Systems Committee

Scope:

This document contains information on the cooling of modern airborne electronics, emphasizing the use of a heat exchange surface which separates coolant and components. It supplements the information contained in AIR64 for the draw through method and in AIR728 for high Mach Number aircraft. Report contents include basic methods, characteristics of coolants, application inside and outside of the "black box" use of thermostatic controls to improve reliability and system design. Characteristics of typical cooling components are treated sufficiently to permit selection and to estimate size and weight.

History:

Standard	Published	Revision	Status
AIR1277B	2005-02-09	Latest	Reaffirmed
AIR1277A	1998-01-01	Historical	Reaffirmed
AIR1277	1976-05-01	Historical	Reaffirmed

AKA:

• SAE AIR 1277

Sector:

• Aerospace

Topic:

• Human Factors
• Environmental control systems
• Air conditioning
• Air supply
• Cabin pressurization
• Smoke detection
• Passenger compartments
• Noise
• Engine cooling systems
• Safety
• Tests and Testing