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Composite Flight Service Evaluation Program for Helicopters

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Abstract:

Progress on NASA and U.S. Army Research and Technology Laboratories sponsored programs to evaluate composite structural components in flight service on commercial and military helicopters is described. Four composite components—the vertical fin, forward fairing, baggage door, and litter door—are to be installed on Bell 206L helicopters operating in widely different climatic areas. Concurrent with the flight evaluation, test specimens will be exposed on ground racks in each area. Helicopter components and ground exposure specimens will be withdrawn and evaluated at five intervals during 10 years of service and environmental exposure. Composite tail assemblies—including the tail boom, horizontal stabilizer, and vertical fin—will be installed on Bell OH‐58 helicopters operatng at four U.S. Army bases having distinct climatic conditions for evaluation over a period of 2 years. The status of these programs is reviewed including results of design and certification/ qualification activities and the flight service evaluation plans.

Document Type: Research Article

DOI: https://doi.org/10.4050/JAHS.26.70

Publication date: 1981-10-01

More about this publication?
  • The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

    Journal subscribers who are AHS members log in here if you are not already logged in.

    Authors can find submission guidelines and related information on the AHS website.

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