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发表于 2015-10-12 22:30
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先澄清Mk 14和Mk 15的光路问题：我楼上说的山不转路转的比喻不太恰当，现在重新定义一下。机械瞄准具的准星与照门的概念应该都很清楚了，那么光学瞄准望远镜前方的物镜相当于准星，后方的目镜就相当于照门。在Mk 14的测角光路设计上是准星固定，让照门光环在瞄准窗内移动，在瞄准手移动火炮（或俗称dummy gun假炮的指挥仪）把照门套住目标的过程中由照门的反射镜组测量提前角。在Mk 15的测角光路设计上则刚好相反，是照门固定，瞄准手移动火炮以准星套住目标过程中由准星的反射镜组测量提前角。所以前者是转照门，后者是转准星。
然后来说扰动式瞄准法：根据1958美海军火控教范“26A1. Some relative-rate systems offset the line of sight from the fore-and-aft axis of the sight case by the amount of computed lead angle, so that the sight case itself is aligned with the gun bore axis. These systems are known as disturbed-line-of-sight systems. Most lead-computing sights are of this type. Other systems, however, measure the lead angles and transmit them to a computer which makes up the gun orders, while leaving the sight telescope, fixed in relation to the sight case, in the line of sight. These are known as undisturbed-line-of-sight systems. Gun Sight Mark 15 and Gun Fire Control System Mark 63, which are examples of disturbed-line-of-sight systems, are described in some detail in this chapter. ” Mk 14和Mk 15的瞄准线一样是不与火炮射击线同轴的，所以都是“disturbed-line-of-sight system扰动式”。
最后关于日语“斜视式、直视式”的问题，由于你原先没提到“扰动式、非扰动式”这两组名词在日语中是与前两者对应的，那么我必须撤回40楼对“斜视式、直视式”的解释。至于Mk 57的瞄准法，我先前受 https://www.youtube.com/watch?v=z_HUZSk8c2c 这个影片影响，以为是Draper团队的设计都是“扰动式”的，再经查证才知道是霍普金斯大学T团队开发的，而且正如你所说是“非扰动式”的设计，谢谢你的指正。
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发表于 2015-10-7 14:58
