737 Graphite Composite Flight Spoiler Flight Service Evaluation.

Abstract

This flight service report was prepared in compliance with the requirements of contract NAS1-11668 and covers the flight service experience of 108 graphite-epoxy spoilers on 737 transport aircraft and related ground-based environmental exposure of graphite-epoxy material specimens for the period from July 1973 through March 1975. Four spoilers have been installed on each of 27 aircraft representing six major airlines operating throughout the world. A flight service evaluation program of at least 5 years duration is underway. As of February 28, 1975, a total of 294 280 spoiler flight-hours and 460 686 spoiler landings had been accumulated by this fleet. Based on visual, ultrasonic, and destructive testing, there has been no evidence of moisture migration into the honeycomb core and no core corrosion. Tests of removed spoilers and of ground-based exposure specimens after the first year of service indicate no significant changes in composite strength. (MM)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1975
Accession Number
ADA304693

Entities

People

  • Robert L. Stoecklin

Organizations

  • Boeing

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aging (Materials)
  • Aircrafts
  • Commercial Aircraft
  • Composite Materials
  • Environmental Exposure
  • Failure Mode And Effect Analysis
  • Graphitic Materials
  • Ground Based
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Mechanical Properties
  • New Zealand
  • Spoilers
  • Static Tests
  • Test And Evaluation

Readers

  • Aviation Science / Aeronautics.
  • Geochemistry
  • Reinforced Composite Materials