US Government As Represented by the Secretary of the Army

Gary M Miller

Ralph F Campoli

Edwin G Steiner

Thomas A Lynch

Curtis J Koch

John W Bannat

Elie L Barrieres

A plurality of discarding type segmented sabots are peripherally disposed rcumambient to the longitudinal axis of a subcaliber projectile to support the subcaliber projectile during launch. A prestressed notched bourrelet flange member screwedly attached to the forward sections of the sabot segments holds the sabot-projectile assembly together during launch. An aft bourrelet-obturator-slip ring assembly secures the rear sections of the sabot segments while transmitting only part of the rifling induced spin to the projectile. A self-adhering flexible base seal member is positioned in the aft end of the sabot segments to enhance efficient obturation of the propellant gases.

Discarding sabot munition

A hypervelocity projectile is provided with aluminum components, such as s and windshields, which possess a coating having high resistance to thermodynamic ablation on the aluminum components. The coating is formed by first producing a 'hard' anodic coating on the aluminum component by anodic oxidation of the aluminum in an acid electrolyte maintained below 10.degree. C, and sealing the hard coating with a hot aqueous solution of an alkali metal silicate of the formula Me.sub.2 O:x.SiO.sub.2, wherein Me is an alkali metal and x is at least about 2.0, e.g., a 5 - 10% aqueous solution of Na.sub.2 O:x.SiO.sub.2, wherein x is about 3.25.

Hypervelocity projectile with aluminum components of high resistance to

Growing community of inventors

Waterloo, IA, United States of America

Gary M Miller