Precision guided extended range artillery projectile...

Aeronautics and astronautics – Missile stabilization or trajectory control – Externally mounted stabilizing appendage

Reexamination Certificate

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Details

C244S003270, C102S473000, C102S501000

Reexamination Certificate

active

06764042

ABSTRACT:

TECHNICAL FIELD OF THE DISCLOSURE
This disclosure is directed to projectiles such as used in artillery, and more particularly to interfaces between the explosive payload and the propelling charge.
BACKGROUND OF THE DISCLOSURE
Projectiles for artillery systems must survive an extremely severe environment during launch. This includes high pressure, shock waves and extreme accelerations from the initial explosion of the propellant charge. The severe environment also includes a muzzle exit event on the projectile structure, which results in rapid depressurization and dynamic depressurization loads. The gun used to launch the projectile typically has a muzzle brake, requiring any fins to clear the brake before deploying. This is a significant design requirement, which is difficult to achieve for most systems.
SUMMARY OF THE DISCLOSURE
A tactical base for a guided projectile is described, and includes a base structure including a plurality of fin slots. A plurality of deployable fins are pivotally mounted to the base structure and supported for movement between a stowed position and a deployed position.


REFERENCES:
patent: 4332360 (1982-06-01), Topliffe
patent: 4334657 (1982-06-01), Mattson
patent: 6126109 (2000-10-01), Barson et al.
patent: 2001/0030260 (2001-10-01), Niemeyer et al.

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