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发表于 2015-8-22 17:55
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The Evolution of Battleship Gunnery in the U.S. Navy, 1920-1945中提到美国学习英国的射击模式：
In the late thirties, so called "offset" battle practices were adopted from a British model. In these practices the optical line of sight of the fire control instruments was offset four to seven degrees (70-120 mils) by means of beam-splitting prisms so that a phantom image of the target ship could be optically superimposed upon a shot pattern falling several hundred yards astern. There remained, however, constant fear of a truly catastrophic accident, and the discovery of several cases of crossed or omitted prisms meant that the practices were very conservatively conducted, and never entirely trusted.
下注：Later, the offset system was changed so that prisms were not required. Instead, the guns themselves were offset about 70 mils from the director line of fire, equating to a 2,000 yard offset at normal battle ranges. One advantage of the older optical system was that it permitted ship to ship "duels," which must have been much more interesting (and realistic) than shooting at target sleds.
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发表于 2015-8-17 18:44
发表于 2015-8-17 21:10
发表于 2015-8-18 01:36
