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SAE AIR 5020A:2012

SAE AIR 5020A:2012

$25.35

Time-Dependent in-Flight Thrust Determination

Published By Publication Date Number of Pages
SAE 2012-05-29 162
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The purpose and intent of Subcommittee E-33E’s effort, the reporting objectives, and the limitations inherent in the reported findings and recommendations are reviewed since these factors are the basis of the information contained in this document.
SAE E-33E Subcommittee was formed to assess the level of industry experience that exists in the area of thrust determination during aircraft time-variant operating conditions. A prime objective was to provide a center for gathering expertise and to be a forum for the exchange of ideas and viewpoints. The committee recognized that a practice for the rigorous treatment of time-dependent thrust did not exist and that several critical aspects of its accounting would need to be investigated.
The specific objectives of this document are:
  1. a

    To examine aircraft and engine operating conditions under which the quasi-steady thrust assumption is valid.
  2. b

    To determine the extent to which time-dependent (nonstationary) force accounting for engine net thrust and propulsion system throttle-dependent terms is required, consistent with existing and developing thrust-minus-drag techniques.
  3. c

    To report time-dependent thrust methodologies and measurement techniques used for flight and ground testing.
  4. d

    To present the results of a data review of state-of-the-art methodology appropriate to the determination of aircraft-installed thrust during quasi-steady and dynamic maneuvers.
  5. e

    To provide guidelines for validating and improving time-dependent thrust determination as appropriate to a specific program.

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SAE AIR 5020A:2012
$25.35