Blunt-leading-edge raked wingtips
An airplane having a fuselage (11), opposed main wings (12), and blunt-leading-edge raked wingtips (8) is provided. Each main wing includes an outboard end (9) and a leading edge (14) having an outboard end leading-edge nose and nose radius. One blunt raked wingtip (8) is located at each main wing o...
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| creator | KENNETH D. VISSER LOUIS L. LEGRAND BERNARD P. PAUL JR MICHAEL S. HOFFMAN LARRY L. HERRICK STEVEN S. OGG STEPHEN L. WELLS C. BYRAM BAYS-MUCHMORE |
| description | An airplane having a fuselage (11), opposed main wings (12), and blunt-leading-edge raked wingtips (8) is provided. Each main wing includes an outboard end (9) and a leading edge (14) having an outboard end leading-edge nose and nose radius. One blunt raked wingtip (8) is located at each main wing outboard end (9) and includes a leading edge (20) swept back from the main wing leading edge (14). Each blunt raked wingtip (8) further includes a plurality of local airfoils each having a leading-edge nose radius and a chord. The nose radius is greater than about 2% of the local chord for the majority of the airfoils. The relative bluntness of the raked wingtips minimizes boundary-layer separation, drag associated with boundary-layer separation, and premature buffeting of the aircraft during low speed flight. |
| format | Patent |
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LEGRAND</creatorcontrib><creatorcontrib>BERNARD P. PAUL JR</creatorcontrib><creatorcontrib>MICHAEL S. HOFFMAN</creatorcontrib><creatorcontrib>LARRY L. HERRICK</creatorcontrib><creatorcontrib>STEVEN S. OGG</creatorcontrib><creatorcontrib>STEPHEN L. WELLS</creatorcontrib><creatorcontrib>C. BYRAM BAYS-MUCHMORE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KENNETH D. VISSER</au><au>LOUIS L. LEGRAND</au><au>BERNARD P. PAUL JR</au><au>MICHAEL S. HOFFMAN</au><au>LARRY L. HERRICK</au><au>STEVEN S. OGG</au><au>STEPHEN L. WELLS</au><au>C. BYRAM BAYS-MUCHMORE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Blunt-leading-edge raked wingtips</title><date>1998-12-30</date><risdate>1998</risdate><abstract>An airplane having a fuselage (11), opposed main wings (12), and blunt-leading-edge raked wingtips (8) is provided. Each main wing includes an outboard end (9) and a leading edge (14) having an outboard end leading-edge nose and nose radius. One blunt raked wingtip (8) is located at each main wing outboard end (9) and includes a leading edge (20) swept back from the main wing leading edge (14). Each blunt raked wingtip (8) further includes a plurality of local airfoils each having a leading-edge nose radius and a chord. The nose radius is greater than about 2% of the local chord for the majority of the airfoils. The relative bluntness of the raked wingtips minimizes boundary-layer separation, drag associated with boundary-layer separation, and premature buffeting of the aircraft during low speed flight.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AEROPLANES AIRCRAFT AVIATION CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COSMONAUTICS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HELICOPTERS PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING |
| title | Blunt-leading-edge raked wingtips |
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