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dc.contributor.authorIntaratep, Nanyapornen
dc.date.accessioned2014-03-14T20:39:48Zen
dc.date.available2014-03-14T20:39:48Zen
dc.date.issued2002-05-31en
dc.identifier.otheretd-06112002-115347en
dc.identifier.urihttp://hdl.handle.net/10919/33519en
dc.description.abstractThe inboard-winglet concept was examined for its flow characteristics by testing for pressure coefficients over the wing and winglet surface in the Virginia Tech Stability Wind Tunnel over a range of freestream velocity and angle of attack. The results were analytically applied to calculate aircraft performance of a roadable aircraft, Pegasus II, which used the inboard-winglet concept in its design. The results proved that this concept has the potential to increase a wing lift coefficient at the right combination of thrust setting and freestream velocity better than a conventional wing-propeller arrangement. The lift coefficient inside the winglet channel was approximated as 2D in behavior. It is also shown that the winglets produce thrust at a positive-lift wing configuration. In the Pegasus II, the vertical stabilizers act like inboard winglets and produce a thrust component from its resultant force, giving 5.2% improvement in its effective aspect ratio and resulting in an induced-drag decrease. With an application of the new wing concept, the Pegasus II performance is comparable to other general aviation aircraft.en
dc.publisherVirginia Techen
dc.relation.haspartetd.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectroadable aircraften
dc.subjectaerodynamicsen
dc.subjectconceptual designen
dc.subjectpropeller-induced flowen
dc.subjectinboard wingleten
dc.titleThe Investigation of an Inboard-Winglet Application to a Roadable Aircraften
dc.typeThesisen
dc.contributor.departmentAerospace and Ocean Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineAerospace and Ocean Engineeringen
dc.contributor.committeechairMarchman, James F. IIIen
dc.contributor.committeememberDevenport, William J.en
dc.contributor.committeememberSchetz, Joseph A.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06112002-115347/en
dc.date.sdate2002-06-11en
dc.date.rdate2003-06-20en
dc.date.adate2002-06-20en


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