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后坐力

早期海军舰炮以短距离的火炮后移来抵消强大的后坐力

后坐力，通常是指枪炮发射时产生的瞬间后退力量。

后退动量相等于枪的质量乘上枪后退的速度。后坐力所生的能量是可以利用动量守恒定律算出来，不过一般都是采直接测量。

小口径武器的后坐力通常由射手的身体吸收，非手持重型武器的后坐力则由搭载底座承受。

不同弹药的后坐力比照

  • 以格洛克22手枪作测试，空枪重1.43磅：
    • 9 mm Luger - 后坐力脉冲.78ms- 后坐力速度17.55ft/s - 后坐力能量6.84ft·lbf
    • .357 SIG - 后坐力脉冲1.06ms- 后坐力速度23.78ft/s - 后坐力能量12.56ft·lbf
    • .40 S&W - 后坐力脉冲.88ms- 后坐力速度19.73ft/s - 后坐力能量8.64ft·lbf
  • 以S&W .44 Magnum作测试，7.5寸枪管，空枪重3.125磅：
    • .44马格南 - 后坐力脉冲1.91ms- 后坐力速度19.69ft/s - 后坐力能量of 18.81ft·lbf
  • 以S&W 460作测试，7.5寸枪管，空枪重3.5磅：
    • .460 S&W Magnum - 后坐力脉冲3.14ms- 后坐力速度28.91ft/s - 后坐力能量45.43ft·lbf
  • 以S&W 500作测试，4.5寸枪管，空枪重3.5磅：
    • .500 S&W Magnum - 后坐力脉冲3.76ms- 后坐力速度34.63ft/s - 后坐力能量65.17ft·lbf

相关资讯

参考文献

  • Arthur B. Alphin, Any Shot You Want, The A-Square Handloading and Rifle Manual, On Target Press, 1996.
  • Edward F. Obert, Thermodynamics, McGraw-Hill Book Co., 1948.
  • Mc Graw-Hill encyclopedia of Science and Technology, volume ice-lev, 9th Edition, Mc Graw-Hill, 2002.

外部参考

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后坐力
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