FAA AC 25.939-1:1986

FAA AC 25.939-1:1986 Evaluating Turbine Engine Operating Characteristics Gives guidelines for the evaluation of turbine engine (turbojet, turboprop, and turboshaft) operating characteristics for subsonic transport category airplanes. These guidelines describe a method of d

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Table of Contents

1PURPOSE
2RELATEDFEDERALAVIATIONREGULATIONS(FAR)
3BACKGROUND
4DEFINITIONS
5ENGINEOPERATINGCHARACTERISTICS
6FACTORSAFFECTINGENGINEOPERATINGCHARACTERISTICS
7FLIGHTTESTEVALUATIONOFENGINEOPERATINGCHARACTERISTICS
8GROUNDANDFLIGHTTESTPROCEDURES
9IN-FLIGHTOPERATEDAUXILIARYPOWERUNITS
APPENDIX1SUMMARYOFDEFINITIONS
APPENDIX2RECOMMENDEDTESTCRITERIA

Abstract

Gives guidelines for the evaluation of turbine engine (turbojet, turboprop, and turboshaft) operating characteristics for subsonic transport category airplanes. These guidelines describe a method of demonstrating compliance with the applicable airworthiness requirements.

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