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dc.contributor.advisorChandrasekhara, M. S.
dc.contributor.authorMedford, Christopher M.
dc.dateSep-12
dc.date.accessioned2012-11-14T00:02:50Z
dc.date.available2012-11-14T00:02:50Z
dc.date.issued2012-09
dc.identifier.urihttp://hdl.handle.net/10945/17417
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThis study investigates the aerodynamic effects of modifying the leading edge on an unmanned combat air vehicle (UCAV) 1303. Literature suggests that leading edge accelerations are reduced for rounder leading edges and stall characteristics are altered. These phenomena are examined using the previously tested 1/72 scale model with a 47-degree leading edge sweep and a cranked trailing edge delta wing with fuselage. The study consists of both flow visualization and aerodynamic force and moment measurements. The model is maneuvered in the NPS water tunnel where a five-component strain gage load balance system measures the forces experienced by it. The model is pitched at different rates with different degrees of yaw for these studies. This process is repeated for a modified leading edge with a radius double the baseline. Preliminary results show that the rounded leading edge acted as expected, alleviating signs of tip-stall in the normal force distribution and smoothing pitch-breaks in the pitching moment distribution. Rolling moment was shown to increase with angle of attack for the modified leading edge case.en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined
in Title 17, United States Code, Section 101. As such, it is in the
public domain, and under the provisions of Title 17, United States
Code, Section 105, is not copyrighted in the U.S.en_US
dc.titleThe Aerodynamics of a Maneuvering UCAV 1303 Aircraft Model and its Control through Leading Edge Curvature Changeen_US
dc.typeThesisen_US
dc.contributor.secondreaderHobson, G. V.
dc.contributor.departmentMechanical Engineering
dc.subject.authorUnmanned Combat Air Vehicleen_US
dc.subject.authorUCAVen_US
dc.subject.authorUCAV 1303en_US
dc.subject.authorTip Stallen_US
dc.subject.authorLeading Edgeen_US
dc.description.serviceEnsign, United States Navyen_US
etd.thesisdegree.nameMaster of Science In Mechanical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US


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