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METHOD OF REDUCING BOTTOM BODY RESISTANCE IN FORM OF PROJECTILE OR BULLET AND BODY IN FORM OF PROJECTILE OR BULLET
METHOD OF REDUCING BOTTOM BODY RESISTANCE IN FORM OF PROJECTILE OR BULLET AND BODY IN FORM OF PROJECTILE OR BULLET
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机译:减小弹药或子弹形式的下体抗性的方法和弹药或子弹形式的下体抗性的方法
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摘要
FIELD: weapon and ammunition.;SUBSTANCE: method consists in forming a vacuum in the bottom part of the body and sucking out the medium, including a boundary layer, from the lateral surface of the body to its bottom through a channel connecting the side surface and the bottom of the body. Moreover, a stream of atmospheric air is formed in the channel, which is made in the form of a helical surface. The helical stream rotates the body around the longitudinal axis. The device for reducing the bottom resistance of the body in the form of a projectile or bullet includes a body in the form of a projectile or bullet with a channel connecting the side surface and the bottom of the body. And the channel is made in the form of a helical surface, which through the holes in the nose of the body communicates with the atmosphere. The channel in the form of a helical surface is located between the body (shell) and the central body part, made in the form of a parallelepiped with a rectangular base, the ribs of which are twisted about the longitudinal axis by 180°.;EFFECT: decreasing the bottom resistance of the body in the form of a projectile or bullet.;3 cl, 2 dwg
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