Analysis of Wind-Tunnel Stability and Control Tests in Terms of Flying Qualities in Full-Scale Airplanes Page: 7 of 60
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F stick force, pounds
x linear travel at top of control stick, feet
change in hinge-moment coefficient per degree
da change in angle of attack
L.F. maximum allowable load factor
change in pitching-moment coefficient per degree
dit change in stabilizer setting
change in elevator hinge-moment coefficient
dit per degree change in stabilizer setting
g acceleration of gravity, feet per second per second
Aan change in normal acceleration in g units
t time, seconds
DETERM ..INATION O P FLYING QUALITIES
The requirements for satisfactory flying qualities
of airplanes have been given in reference 1 under three
main headings, namely:
I. Requirements for Longitudinal Stability and
II. Requirements for Lateral Stability and Control
III. Stalling Characteristics
The present paper follows the outline of reference 1 and
each of the flying-quality requirements is quoted directly.
I. Requirements for Longitudinal Stability and Control
I-A: Characteristics of uncontrolled longitudinal
"W0en elevator control is deflected and released
quickly, the subsequent variation of.normal accele-
ration and elevator angle should have completely dis-
appeared after one cycle."
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Kayten, Gerald G. Analysis of Wind-Tunnel Stability and Control Tests in Terms of Flying Qualities in Full-Scale Airplanes, report, October 1943; (digital.library.unt.edu/ark:/67531/metadc279513/m1/7/: accessed February 17, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.