Gun tube

Details Gun tube Gun tube

1993-01-07

1994-08-16

Bentley, Stephen C.

Firearms

Barrels

Rifling or lining

29 11, F41A 2118

Patent

active

053375041

ABSTRACT:
The present invention relates to a gun tube having a spin curve with a variable spin angle as well as a rifling force R(x) over the path of the projectile (x) through the gun tube when a projectile is fired, as well as a predetermined caliber d, projectile mass m.sub.G, mass moment of inertia J about the longitudinal axis of the projectile, gas pressure force P(x) on the projectile bottom and projectile velocity v(x). In order to realize, within the framework of manufacturing tolerances, an accurate spin curve corresponding to diverse desired characteristics of the rifling force, it is provided that the rifling force R(x) is determined according to

REFERENCES:
patent: H275 (1987-06-01), Steiner
patent: 4924614 (1990-05-01), Hoffmann et al.
Cranz, "Innere Ballistik. Die Bewegung des Geschosses durch das Rohr und Ihre Begleit Erscheinungen", 1926, pp. 340-374.
Hanert, "Geschutz und Schuss. Eine Einfuhrung in die Geschutzmechanik und Ballistik", 1940, pp. 66-77.
Bethell, H. A., Modern Guns and Gunnery, 1910, pp. 76-77.
Rheinmetall, Handbook on Weaponry, 1982, pp. 572-579.

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