This report presents the results of wind tunnel test BVWT 067, the Phase II test of a two phase test program, performed in the Boeing-Vertol V/STOL wind tunnel on a powered four prop tilt wing full span model equipped wtih cyclic pitch propellers for longitudinal control. Items evaluated through transitional flight, include cyclic pitch effectiveness, descent performance with cyclic pitch inputs, the effect of cyclic on longitudinal ana la-ceral/directional stability plus the influence of cyclic actacn on the effectiveness of the aircraft surface controls (stabilizer for longitudinal trim and differentially deflected flap3/spoiler for roll/yaw control). An in-ground effect investigation with a moving ground plane was also conducted to establish the influence of the ground on cyclic pitch effectiveness ana on stability characteristics with cyclic pitch inputs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.