Underwater projectile type weapon - has expanding collar on missile forming seal against launcher tube

摘要

The underwater weapon comprises a tubular launcher containing a projectile (14), whose rear end encloses a combustion chamber for the propellant charge. A collar (18) protruding from the rear end forms a seal against the launcher tube, and has expansion characteristics matching those of the tube. It forms an inverted-pot-shaped chamber (20) under the projectile. USE/ADVANTAGE - No gas leakage on launching and improved accuracy of aiming.