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THE DYNAMICS OF SPINNING BODIES AT LARGE ANGLE OF ATTACK
ADVANCED TECHNOLOGY CORP SANTA BARBARA CALIF
A theoretical study was conducted to determine the motion of nonstabilized rolling and spinning bodies at very large angles of attack. From numerical integration of the non-line r sixdegrees-of-fre dom equations of motion it was found that a rolling cone-cylinder body couldACHIEVE A SELF-SUSTAINED SPINNING MOTION FOR LARGE RANGES OF BOTH CENTER-OF-GRAVITY POSITION AND Reynolds number. The stability of the autorotative motion was investigated using linear theory. For configuratio s representative of current small missiles descent velocities as low as approximately 100 ftsec were achieved with spinning motion. Stable spins could be ini i ted from small angle of attack either by supplying a pitch impulse or effecting aerodynamic destabilization. Author
AF29 600 2936