This invention relates to a non-lethal projectile to be fired using a paintball gun, and more particularly, but not exclusively, to an aerodynamic non-lethal projectile which is used for marking, inhibiting or administering medicinal or other chemical substances to live targets. According to a first aspect of the invention, there is provided a projectile comprising a body shaped to receive a capsule containing a substance, the body having a stabilizing member connected thereto for stabilizing the projectile in flight when the projectile is discharged from a weapon, and an annular member connected to the stabilising member at a rear end of the projectile for positioning the projectile relative to the weapon and relative to other projectiles to be discharged by the weapon.
1. A body for a non-lethal projectile, the projectile including a capsule containing a substance, the body being manufactured from a polymer and comprising a front end shaped to receive at least a part of the capsule containing the substance;
a stabilising member comprising a plurality of fins helically arranged relative to the body to cause the projectile to operatively spin along its longitudinal axis for stabilising the projectile in flight when the projectile is discharged from a gun; and
an annular airfoil surrounding the fins at a rear end of the body for improving the aerodynamic stability and accuracy of the projectile in flight, and for positioning the projectile relative to the gun and relative to other projectiles to be discharged by the gun.
2. A body for a projectile as claimed in claim 1 , wherein the annular airfoil has substantially the same outer diameter as the front end of the body.
3. A body for a projectile as claimed in claim 2 , wherein the body defines a volume.
4. A body for a projectile as claimed in claim 3 , wherein the volume at least partially receives the capsule.
5. A body for a projectile as claimed in claim 1 , wherein the fins extend from a rear end of the body to a position no further than half way towards the front end of the body.
6. A body for a projectile as claimed in claim 1 , wherein the polymer is a non-toxic, biodegradable, water-soluble polymer.
7. A non-lethal projectile comprising:
a body having an open front end, the body comprising:
a stabilizing member comprising a plurality of fins helically arranged relative to the body to cause the projectile to operatively spin along its longitudinal axis for stabilizing the projectile in flight when the projectile is discharged from a gun; and
an annular airfoil surrounding the fins at a rear end of the body for improving the aerodynamic stability and accuracy of the projectile in flight, and for positioning the projectile relative to the gun and relative to other projectiles to be discharged by the gun; and
a cap provided over the open end of the body, thereby forming an enclosed volume within the body for receiving a substance.