公开(公告)号：US3800706A

公开(公告)日：1974-04-02

申请号：US20340171

申请日：1971-11-30

Applicant: DYNAMIT NOBEL AG

Inventor： GAWLICK H ,  SCHATZ A ,  MOTHES H

IPC: F42B10/54 ,  F42B13/20 ,  F42B15/14

CPC classification number: F42B10/54

Abstract: Training ammunition in the form of a projectile having spin braking means arranged in the front part thereof. The spin braking means includes a central bore extending from the tip of the projectile partially therethrough with the rear portion of the central bore being in communication with the outer surface of the projectile via discharge channels arranged about the central bore. The rear portion of the central bore is provided with a deflecting lobe having a cross section which increases rearwardly for directing the air flow into the discharge channels in order to minimize turbulence in the air flow. The central bore and discharge channels operate in the manner of a rotary compressor with radial rotors in that air flow therethrough during the flight of a spin stabilized projectile effects braking of the projectile in a predetermined manner to reduce the flight range of the projectile. With known flight characteristics of a projectile, the cross-sectional size of the central bore and discharge channels can be selected to produce a predetermined braking effect and a predetermined flight range for the projectile.

Abstract translation: 训练具有布置在其前部的旋转制动装置的弹丸形式的弹药。 旋转制动装置包括从射弹的尖端部分地延伸穿过的中心孔，中心孔的后部经由围绕中心孔布置的排放通道与射弹的外表面连通。 中心孔的后部设置有偏转凸角，其具有向后增加的横截面，用于将空气流引导到排出通道中，以使空气流中的湍流最小化。 中心孔和排放通道以具有径向转子的旋转压缩机的方式运行，因为在自旋稳定的抛射体的飞行期间的空气流以预定的方式实现弹丸的制动，以减少射弹的飞行范围。 具有弹丸的已知飞行特性，可以选择中心孔和排放通道的横截面尺寸，以产生预定的制动效果和弹丸的预定飞行范围。