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US 4,524,695 AGranted
Finned subcaliber projectile
AssigneeEtat Francais
InventorsBernhard Bisping, Klaus Gersbach, Hans Luther, Walter Simon, Peter Wallow, Patrick Montier, Pierre A. Moreau, Jean C. Sauvestre
Life of this patent
Estimating the term…
Abstract
The technical area of the present invention relates to an anti-tank weapon comprising a finned projectile of the arrow type and a launching shoe. The projectile of the invention comprises a shoe 2 the rear portion of which has fins 10 provided with pins 11 which rest against the compression cone 7 of the tube of the weapon. These fins make it possible to obtain practically constant compressive pressure and assure a proper guidance of the projectile during the barrel phase. Application to the field of armaments.
Claims18
Ammunition to be launched from a barrel of a weapon comprising:
- a finned subcaliber-sized projectile;
- a combustible tubular case surrounding a rear part of said projectile and containing a propulsive charge;
- at least two longitudinal shell portions together comprising a launching shoe for launching movement with said projectile along a barrel of a weapon, said shoe being partially disposed within said tubular case and having an inner portion in form locking engagement with said projectile to prevent axial shifting between said shoe and said projectile while said shoe and said projectile are within said barrel but allow radial separation of said longitudinal shell portions from said projectile upon exit of said shoe and said projectile from said barrel;
- said shoe comprising a tubular middle portion extending between a front portion and a rear portion of said shoe;
- said front portion being disposed forward of said tubular case and being caliber-sized to create a seal between a combustion chamber and a front part of said barrel of said weapon;
- said rear portion having recesses to permit passage of propulsive gases toward said front portion and having above caliber-sized projections extending through holes in said tubular case to frictionally engage a forcing cone of said barrel, the frictional engagement between said projections and said forcing cone being such as to limit movement of said shoe during launch until said propulsive gases reach a forcing pressure.
3 more elements
Ammunition to be launched from a barrel of a weapon comprising:
- a finned subcaliber-sized projectile;
- a non combustible tubular case surrounding a rear part of said projectile and containing a propulsive charge;
- at least two longitudinal shell portions together comprising a launching shoe for launching movement with said projectile along a barrel of a weapon, said shoe being partially disposed within said tubular case and having an inner portion in form locking engagement with said projectile to prevent axial shifting between said shoe and said projectile while said shoe and said projectile are within said barrel but allow radial separation of said longitudinal shell portions from said projectile upon exit of said shoe and said projectile from said barrel;
- said shoe comprising a tubular middle portion extending between a front portion and a rear portion of said shoe;
- said front portion being disposed forward of said tubular case and being caliber-sized to create a seal between a combustion chamber and a front part of said barrel of said weapon;
- said rear portion having recesses to permit passage of gases toward said front portion and having above caliber-sized projections to frictionally engage a forcing cone of an internal surface of said tubular case, the frictional engagement between said projections and said forcing cone being such as to limit movement of said shoe during lauch until said propulsive gases reach a forcing pressure.
3 more elements
Ammunition to be launched from a barrel of a weapon comprising:
- a finned subcaliber-sized projectile;
- a non-combustible tubular case surrounding a rear part of said projectile and containing a propulsive charge;
- at least two longitudinal shell portions together comprising a launching shoe for launching movement with said projectile along a barrel of a weapon, said shoe being partially disposed within said tubular case and having an inner portion in form locking engagement with said projectile to prevent axial shifting between said shoe and said projectile while said shoe and said projectile are within said barrel but allow radial separation of said longitudinal shell portions from said projectile upon exit of said shoe and said projectile from said barrel of said weapon;
- said shoe comprising a tubular middle portion extending between a front portion and a rear portion of said shoe;
- said front portion being disposed forward of said tubular case and being caliber-sized to create a seal between a combustion chamber and a front part of said barrel of said weapon;
- said rear portion having recesses to permit passage of propulsive gases toward said front portion and having projections extending at least partially through hole in said tubular case to limit movement of said shoe during launch until said propulsive gases reach a forcing pressure, said projections shearing at an inner surface of said tubular case to allow movement of said shoe when said propulsive gases reach said forcing pressure.
3 more elements
Dependencies are inferred from the claim text.