"The Mark 8 Fire Control Computer was developed by Bell Laboratories during World War II. It was initially requested by the USN Bureau of Ordnance as an alternative to the Ford Instruments Mark I Fire Control Computer, in case supplies of the Mk I were interrupted or were unable to be manufactured in the required numbers.[1] The Mk 8 computer used all electric methods of computation, in contrast to the Mk 1, which performed most computations via mechanical devices. The Mk 8 was found to be more accurate than the Mk 1 and substantially faster in reaching a fire control solution,[2] but by the time it was developed and tested in 1944, supplies of the Mk 1 were found to be sufficient in quantity. The USN extensively tested the Mk 8 and may have incorporated some of its technology into the post war Ford Instruments Mk1A computer. The Mk 8 technology was similar to that used in the M9 gun data computer used by the US Army for coast defence fire control and in the SCR-584 radar system computer."
看了以上这一英文危机的条目我眼珠子都快掉下来了。
1. 二战时期美国海军只有一型Mark 8 的舰炮火控计算机，但他们叫做Rangekeeper而不是Fire Control Computer，Rangekeeper是指用来指挥6英寸以上的大型对海主炮的火控计算机。同时期英国的舰炮火控计算机叫做Fire Control Table，但编号型式是用罗马数字，第八型叫做Mark VIII，而不是Mark 8 。这两国海军叫做第八型的舰炮火控计算机都是在1930年代开发的，上文应是指美国的吧，美国的Mark 8 Rangekeeper在1933年首装于波特兰级，上文却说是美国海军兵工局在二战期间要求开发来作为Mark I 生产能量不足的替补，于1944年测试。福德仪器公司的Mark I 是在1916年首装于得克萨斯号上的，从1916到1944近卅年，Mark I 到Mark 8 这中间的其他型号都被条目编撰给吃掉了，直接想用Mark 8 来替补Mark I 。
2. 就算条目内的Mark I 和Mark 1 不是笔误，是两种型号，那么福德仪器公司还真有一型Mark 1 Computer，请注意这次是"Computer"了，不过Mark 1 Computer火控的对象却不是Mark I 和Mark 8 的6英寸以上大型对海主炮，而是5英寸高平两用炮，所以开发Mark 8 来弥补Mark 1 之不足也是牛头不对马嘴。
mathewwu 发表于 2013-12-13 01:06
"The Mark 8 Fire Control Computer was developed by Bell Laboratories during World War II. It was i ...
Annals of the History of Computing, Volume 4, Number 3, July 1982 Electrical Computers for Fire Control, p218-46
內的1.9 Fire Control for Naval Dual-Purpose Guns
應該就是此條目的原型，並提到該計算機(文中也是稱為Mark 8)曾在U.S.S. Wyoming上艦試驗
楼主
发表于 2013-12-13 02:05
