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Rapid-Transition Tests of a 1/4-Scale Model of the VZ-2 Tilt-Wing AircraftAn investigation of the longitudinal stability and control characteristics of a 1/4-scale model of the VZ-2 tilt-wing vertical-take-off- and-landing aircraft during rapid transitions has been made on the Langley control-line facility. Only the longitudinal characteristics were studied because with the control-line technique the other phases of the model motion are partially restrained. The rapid transitions from hovering to forward flight could be performed easily at any of the accelerations attempted; whereas, the transitions from forward flight to hovering were generally accompanied by a strong nose up pitching moment which at times was uncontrollable because of an inadequate amount of available pitch control. The model was more difficult to control during rapid decelerations than during slow decelerations and was also more difficult to control for rearward center-of-gravity conditions than for forward ones.
Document ID
19980227992
Acquisition Source
Headquarters
Document Type
Other - NASA Technical Note (TN)
Authors
Tosti, Louis P.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1961
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NASA-TN-D-946
L-1683
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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