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Revision A, July 1, 2004

Complete Document

(R) Method of Evaluating Pneumatic Ground Power Units

Includes all amendments and changes through Reaffirmation Notice , October 2015

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Product Details:

  • Revision: Revision A, July 1, 2004
  • Published Date: October 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 13
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This SAE Aerospace Information Report (AIR) covers, and is restricted to, the behavior of air under conditions of critical and subcritical flow at temperatures less than 500 °F.


This AIR is intended to provide basic information and theoretical background on a proper type of test equipment and calculation procedures for use in measuring air in critical and subcritical flow conditions, as are usually encountered in jet engine starting applications and to provide guidance in the construction of test apparatus. Additionally, a method for simplifying the calculations performed by technicians is presented.
AIA/NAS Aerospace Standards