Experimental Estimation of Power Effects on Neutral Point Location

Show full item record

Title: Experimental Estimation of Power Effects on Neutral Point Location
Author: Pisoni, Joseph
Advisors: Dr. Charles (Chuck) Hall, Committee Chair
Abstract: Two approaches were taken to estimate the power effects on the neutral point of an unmanned aerial vehicle. The first approach was the solution of two simultaneous equations for the aircraft pitch stiffness, Cma. The second approach was the comparison of a computer code predicted, power-off neutral point location to a flight data estimated power-on neutral point. The approaches are explained and each was attempted. Flight-testing was conducted with a UAV weighing 23 lbs. and a wingspan of 7.5 ft. The solution of two simultaneous equations was not completed due to flight-testing mishaps and time constraints. This failure led to the second approach. The computer code/flight estimation of power effects on the neutral point was completed. The result was estimates for the power effects on the neutral point and the change in the propeller normal force with changes in angle of attack, (CNp)α. Aircraft designers can use these estimates to better predict static stability of future aircraft designs.
Date: 2004-02-11
Degree: MS
Discipline: Aerospace Engineering
URI: http://www.lib.ncsu.edu/resolver/1840.16/1885


Files in this item

Files Size Format View
etd.pdf 1.005Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record