Ring airfoil glider with augmented stability
First Claim
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1. A method for launching a ring airfoil projectile from a weapon, comprising:
- providing a ring-shaped projectile having an outer diameter, the wall of the projectile having the cross-sectional shape of an airfoil, the projectile having a center of gravity, the projectile having an aerodynamic center of pressure;
explosively propelling the projectile within the weapon;
spinning the projectile as it travels within the weapon; and
aerodynamically stabilizing the projectile by placing the center of pressure behind the center of gravity.
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Abstract
In one embodiment, a less lethal munition including a ring airfoil projectile. The flight trajectory of the projectile has increased accuracy resulting from the aerodynamic stabilization of the projectile. In some embodiments, the projectile is both aerodynamically stabilized and spin stabilized.
160 Citations
18 Claims
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1. A method for launching a ring airfoil projectile from a weapon, comprising:
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providing a ring-shaped projectile having an outer diameter, the wall of the projectile having the cross-sectional shape of an airfoil, the projectile having a center of gravity, the projectile having an aerodynamic center of pressure; explosively propelling the projectile within the weapon; spinning the projectile as it travels within the weapon; and aerodynamically stabilizing the projectile by placing the center of pressure behind the center of gravity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification