RECENT GENERAL ELECTRIC ENGINE DEVELOPMENT TESTING FOR IMPROVED SERVICE LIFE (AIRCRAFT ENGINES)

More exact simulation of engine in-service operating conditions by accelerated development test program improvements are reviewed for lessons learned by General Electric towards earlier identification/solution of engine life extension problems. Improvements are discussed for the following GE development aircraft engine families: T700 (small turboshaft), F101 (augmented turbofan), F404 (augmented low bypass turbofan), and CFM56 (high bypass fan), Improved design features, analysis and test simulation of mission cycles, and component test techniques, and, in general, increased emphasis on demonstrating required minimum service life prior to production are discussed. Tests include low cycle fatigue and life cycle, and accelerated mission and simulated mission endurance. Possible future direction of these efforts is indicated for consideration in general engine specification revisions.

  • Availability:
  • Supplemental Notes:
    • Presented at SAE Aerospace Meeting, San Diego, 27-30 November 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Turnbull, R C
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00399184
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 780990, HS-025 602U
  • Files: HSL, USDOT
  • Created Date: Oct 31 1985 12:00AM