Hollow tube projectiles and launch systems thereof

摘要

A hollow tube projectile is configured with a leading edge to first exit a firearm barrel and a trailing edge to follow there through, the hollow tube projectile comprising an annular airfoil slug. A longitudinal cross section of the annular airfoil slug resembles an airplane wing having a rounded leading edge and a sharp trailing edge and an outer lift surface there around and an inner cylindrical surface. Three or more fins are distributed equidistantly around the annular airfoil slug, each fin having an inner edge complementary to the outer lift surface and an outer edge parallel to a major axis through the annular airfoil slug. The hollow tube projectile further comprises a launch wafer comprising a metal insert adapted to contain combustion gases during launch of the annular airfoil slug. The launch wafer is adapted to receive the metal insert and concentrically position it within a hollow tube cartridge.

主权项

1. A hollow tube projectile configured with a leading edge to first exit a firearm barrel and a trailing edge to follow there through, the hollow tube projectile comprising:
an annular airfoil body, a longitudinal cross section thereof resembling an airplane wing having a rounded leading edge and a sharp trailing edge and an outer lifting surface there around and an inner cylindrical surface; and a plurality of three or more fins distributed equidistantly around the annular airfoil body, each fin having an inner edge complementary to the outer lifting surface of the body and an outer edge parallel to a major axis through the hollow tube projectile.