Supercavitating underwater projectile
AssigneeAtlantic Research Corporation
InventorHermann L Miskelly
Life of this patent
Estimating the term…
Abstract
A supercavitating underwater projectile adapted to be fired from a gun or the like, comprising a front end or nose portion and a rear end portion. An auxiliary rocket motor is disposed within the rear end portion of the projectile for providing additional thrust after the projectile has been fired. Vents are disposed within the projectile and are in communication with the rocket motor and the exterior of the projectile for venting some of the combustion gases from the rocket motor to the exterior of the projectile near the nose portion thereof to increase the size of the cavitation bubble formed as the projectile travels through the water and thereby reduce hydrodynamic drag on the projectile.
Claims12
A supercavitating underwater projectile adapted to be fired from a gun, comprising a front end portion and a rear end portion;
- an auxiliary rocket motor disposed within the rear end portion of the projectile for providing additional thrust after the projectile has been fired;
- and
- vents disposed within the projectile and in communication with said rocket motor and the exterior of the projectile for venting some of the combustion gases from said rocket motor to the exterior of the projectile near said front end portion thereof to increase a size of the cavitation bubble formed as the projectile travels through the water and thereby reduce hydrodynamic drag on the projectile.
A supercavitating underwater projectile adapted to be fired from a gun, comprising:
- a nose portion;
- an elongated housing mounted on said nose portion and extending rearwardly therefrom, said housing having a plurality of nozzles at the rear end portion thereof;
- an auxiliary propellant disposed within said housing between said nose portion and said nozzles for providing additional thrust after the projectile has been fired;
- and
- vents disposed within said nose portion and said housing in communication with said propellant and the exterior of the projectile for venting some of the combustion gases from said propellant to the exterior of the projectile to increase a size of the cavitation bubble formed as the projectile travels through the water to reduce hydrodynamic drag on the projectile.
Dependencies are inferred from the claim text.