The Longitudinal Stability, Control Effectiveness, and Control Hinge Moment Characteristics Obtained From a Flight Investigation of a Canard Missile Configuration at Transonic and Supersonic Speeds Page: 4 of 45
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2 NACA RM L50I27
INTRODUCTION
As part of the general research program on guided missiles, the
Langley Pilotless Aircraft Research Division has been conducting a series
of flight tests to determine the stability and control characteristics of
a canard missile configuration. The aerodynamic parameters are necessary
for the analysis and design of various automatic stabilization systems
and will also provide useful aerodynamic design data for estimating the
stability and control characteristics of similar configurations.
The longitudinal stability, control, hinge-moment, and drag charac-
teristics obtained from the flight test of a 600 delta wing canard missile
configuration at the Langley Pilotless Aircraft Research Station at
Wallops Island, Va. are presented for a Mach number range of 0.7 to 1.45.
The results were obtained through the use of a model utilizing a pro-
grammed control system.
The rolling stability and control derivatives and aileron hinge-
moment characteristics of this configuration using wing-tip ailerons
have been reported in reference 1. Results of the flight test of a model
incorporating a roll-stabilization system were presented in reference 2.
SYMBOLS
c wing chord, feet
c wing mean aerodynamic chord (1.49 ft)
Sw total wing area in one plane (2.89 sq ft)
Ce canard control-surface mean aerodynamic chord (0.387 ft)
Se canard control-surface exposed area (0.192 sq ft)
t wing thickness, inches; or time, seconds
W weight (115.4 lb)
ly moment of inertia about Y-axis (20.0 slug-ft2)
p mass density of air, slugs per cubic foot
Coefficient of viscosity, slugs per foot-seconds
V velocity of model, feet per seconde~a;i~i~if~l~~
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Niewald, Roy J. & Moul, Martin T. The Longitudinal Stability, Control Effectiveness, and Control Hinge Moment Characteristics Obtained From a Flight Investigation of a Canard Missile Configuration at Transonic and Supersonic Speeds, report, November 24, 1950; (https://digital.library.unt.edu/ark:/67531/metadc58681/m1/4/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.