Surface Ship, Deck-Launched Anti-Torpedo Projectile
AssigneeLockheed Martin Corporation
InventorsJyun-Horng Fu, Lance Hamilton Benedict, Antonio Paulic, Robert M. Krass
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Abstract
A surface ship, deck-launched anti-torpedo projectile is disclosed. The projectile has a blunt-end nose to create a cavitating running mode. The nose has a gradual, stepped, right-circular cylindrical or conic geometry. In some embodiments, the projectile includes a plurality of tail fins that are dimensioned and arranged to be within the generalized elliptical cavity that shrouds the projectile in the cavitating running mode.
Claims21
-20. (canceled)
A projectile that is physically adapted to travel through air, penetrate water, and travel under water in a cavity-running mode, comprising:
- a body;
- and
- a nose depending from the body, wherein:
- (a) the nose has a blunt forward end suitable for providing a cavity running mode at sufficient velocity;
- (b) the nose comprises a plurality of discrete, right-circular cylindrical sections of increasing diameter that define a stepped profile thereof;
- and
- (c) a center-of-gravity of the projectile is forward of a midpoint thereof.
A projectile that is physically adapted to travel through air, penetrate water, and travel under water in a cavity-running mode, comprising:
- a body;
- and
- a nose depending from the body, wherein:
- (a) the nose has a blunt forward end suitable for providing a cavity running mode at sufficient velocity;
- (b) the nose comprises a plurality of discrete, right-circular cylindrical sections of increasing diameter that define a stepped profile thereof;
- and
- tail fins, wherein the tails fins have shorter span and a longer chord relative to a span and a chord of a conventional tail fin that is designed based on aerodynamic or hydrodynamic considerations and without regard to cavity-running mode considerations.
A projectile that is physically adapted to travel through air, penetrate water, and travel under water in a cavity-running mode, comprising:
- a body, wherein in the body of the projectile, the diameter of the projectile decreases aft via a step change defining an aft-located reduced-diameter portion of the body;
- tail fins, wherein the tail fins are disposed in the aft-located reduced-diameter portion of the body;
- and
- a nose depending from the body, wherein the nose has a blunt forward end suitable for providing a cavity running mode at sufficient velocity.
Dependencies are inferred from the claim text.