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'In-Plane' and 'Out of Plane' Stability Derivatives of Slender Cones at Mach 14,

TLDR
In this article, a 10-deg. circular cone with various spherical and conical (45 degrees) nose bluntness of 1.7, 10% and 25% was investigated in ARL's Mach-14 wind tunnel.
Abstract
: A 10-deg. circular cone with various spherical and conical (45 degrees) nose bluntnesses of 1.7%, 10% and 25% was investigated in ARL's Mach-14 wind tunnel. Test results confirm that the static and dynamic stability coefficients are not equal in pitch and in yaw for nonzero angles of attack if the pitching moment becomes a nonlinear function of angle of attack due to nose flunting. The inequality of the in plane and out of plane stability derivatives was found at small angles of attack which are only fractions of the cone half angle. (Author)

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Symmetric Missile Dynamic Instabilities

TL;DR: In this paper, the authors defined axial and transverse moments of inertia for a symmetric ballistic missile and defined the parameters of the two yaw model arms for a single-axis symmetric missile.
Journal ArticleDOI

Nonlinear Limit Motions of a Slightly Asymmetric Re-entry Vehicle

TL;DR: In this paper, the existence of one-, two-, and three-mode stable limit motions is studied by quasi-linear analysis and the results verified by numerical integration of the exact differential equation.
Journal ArticleDOI

Determination of Nonsymmetric Aerodynamics of Re-entry Missiles

TL;DR: In this article, a linear and nonlinear theory which abandon the usual relations between pitch and yaw stability derivatives is developed to account for nonsymmetric aerodynamics, and the numerical integration method using parametric differentiation and a newly developed approach to determine modal amplitudes, frequencies, and damping rates by the numerical inversion of Laplace transformations to begin a differential corrections procedure.
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