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Application of winglets and/or wing tip extensions with active load control on the Boeing 747The application of wing tip modifications and active control technology to the Boeing 747 airplane for the purpose of improving fuel efficiency is considered. Wing tip extensions, wing tip winglets, and the use of the outboard ailerons for active wing load alleviation are described. Modest performance improvements are indicated. A costs versus benefits approach is taken to decide which, if any, of the concepts warrant further development and flight test leading to possible incorporation into production airplanes.
Document ID
19780021107
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Allison, R. L. (Boeing Commercial Airplane Co. Seattle, WA, United States)
Perkin, B. R. (Boeing Commercial Airplane Co. Seattle, WA, United States)
Schoenman, R. L. (Boeing Commercial Airplane Co. Seattle, WA, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Publication Information
Publication: NASA. Langley Res. Center CTOL Transport Technol., 1978
Subject Category
Aircraft Design, Testing And Performance
Accession Number
78N29050
Funding Number(s)
CONTRACT_GRANT: NAS1-14741
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19780021103Collected WorksCTOL Transport Technology, 1978
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