Abstract: A process of making and filling an envelope shaped as a ring airfoil for use as a projectile. The envelope is formed of resilient material into a tubular shape with an outer wall portion and an inner wall portion located along the tubular extent thereof with a foldable portion therebetween. The walls are relatively moved to form a payload cavity by moving the inner wall to nest within the outer wall by folding at the foldable portion with the ends contiguous. The foldable portion forms the leading edge of the airfoil. The trailing edge is formed by joining the contiguous ends. Payload filling and final sealing steps complete the airfoil projectile shape.

Abstract: A pre-loaded grenade launcher attachable to the muzzle of a gun is constred of inexpensive plastic and contains a grenade. After quick attachment of the launcher to a gun, and launching of the grenade, the launching attachment is discarded and may be replaced by another pre-loaded launcher.

Abstract: Measuring apparatus including a core, interior to and stationary relative a spinning shell, having a cavity in sliding seal engagement with the interior of the spinning shell. The cavity is axially aligned with an aperture in the surface of the spinning shell, captures fluid pressure when the cavity and aperture are radially aligned and transmits the pressure to a transducer exterior to the aerodynamic test chamber.

Abstract: A rotatable airfoil non-lethal sting projectile comprising a hollow closed circular ring wing surrounding a central open area. The projectile consists of an aerodynamic lifting body of a thick ring wing geometry which uses spin imparted to it from a launching means for its gyroscopic stability. The combination of aerodynamic stability characteristics and high spin rate (i.e. above 2,000 rpm) results in a flat trajectory and extended range capability.The projectile is intended as a riot control weapon. Impact is non-lethal, but may be painful. The subsonic launch velocity, the non-metallic light weight structure, the soft resilience, and relatively large size of the projectile avoids serious bodily harm due to impact with a person even at point-blank range.

Abstract: A rotatable airfoil projectile comprising a hollow closed circular ring wing surrounding a central open area with a non-lethal riot control agent positioned within the hollow ring. The projectile consists of an aerodynamic lifting body of a thick ring wing geometry which uses spin imparted to it from a launching means for its gyroscopic stability. The combination of aerodynamic stability characteristics and high spin rate (i.e. above 2,000 rmp) results in a flat trajectory and extended range capability.The projectile ruptures on impact due to centrifugal and impact forces to distribute the non-lethal riot control payload about the target area. The sub-sonic launch velocity avoids bodily harm due to impact with a person even at point-blank range.

Abstract: This invention relates to a method for assessment of the condition, and cge of condition, of the liquid fill for chemical projectiles by analyzing the vibrational characteristics of the projectile and fill. It is a method by which the condition of the liquid fill in a projectile can be assessed without requiring cutting, drilling, and/or altering the structure of the shell or payload. This non-destructive technique can be used with projectiles filled with toxic or hazardous materials and can occur within the confines of storage buildings. The system for incorporating the method of the invention includes a projectile which is freely suspended and then struck with a device causing the projectile and the fill to vibrate. The natural vibrational characteristics of the projectile and fill are measured and recorded and can be compared to model data to ascertain any changes in the physical characteristics of the fill.

Abstract: This invention offers a simple, inexpensive solution to both the dispersion nd orientation problems, and can also be very effective for inducing scanning of the ground in flight of a munition, for target location. A munition, such as a cylindrical body, is provided with two curved, full-length wings or fins attached longitudinally along an upper half of the cylindrical body, both directed concavely against the air flow. (An example is shown in FIG. 1). As munitions so equipped with said wings are dropped and descend through the air of their own power, several effects are achieved. First, the munitions will land right side up. Secondly, dispersal of plurality released munitions will occur and not land lumped-up in a single group for instance. Slots and tabs can be cut in opposite corners of the wings to produce a pin-wheel effect which will improve ground coverage in scanning.