The 737 Graphite Composite Flight Spoiler Flight Service Evaluation
The 737 Graphite Composite Flight Spoiler Flight Service Evaluation
- New search for: R. L. Stoecklin
- New search for: R. L. Stoecklin
The fourth annual flight service report was prepared in compliance with the requirements of contract NAS1-11668 and covers the flight service experience of 111 graphite-epoxy spoilers on 737 transport aircraft and related ground-based environmental exposure of graphite-epoxy material specimens for the period from May 1977 through April 1978. Spoilers have been installed on 28 aircraft representing seven major airlines operating throughout the world. An extended flight service evaluation program of 10 years is presently under way. As of April 30, 1978, a total of 977,853 spoiler flight-hours and 1,481,453 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 fourth year of service continue to indicate modest changes in composite strength properties. The flight service program has been amended to include gathering of inflight moisture absorption data by three of the spoiler-participating airlines. The exterior-mounted specimens will be periodically removed and evaluated.
Document information
The 737 Graphite Composite Flight Spoiler Flight Service Evaluation
1978
48 pages
Report
No indication
English
Air Transportation , Composite Materials , Commercial aircraft , Boundary layer control , Spoilers , Graphite composites , Composite materials , Artificial weathering tests , Corrosion environments , Maintenance , Nondestructive tests , Destructive tests , Boeing 737 aircraft , Carbon fiber reinforced plastics , Epoxy matrix composites , Graphite reinforced composites