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一等兵

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发表于 2013-12-24 21:34
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本帖最后由 U-571 于 2014-9-20 19:57 编辑
动感炮神 发表于 2013-12-24 21:19 
“145mm上部装甲带+110mm主水平装甲倾斜段+45mm防雷装甲”等效于“107mm”?这是怎么算出来的?
先把45mm刨掉不说,你这个数据思路奇特啊——因为上装的存在,110主水平装甲抗弹能力反而下降3毫米?145被通过后,被帽必然脱落,而且炮弹动能会有明显衰减。不知这些考虑了没?
另外,南达船壳+135能等效于152?这个匪夷所思了。从角度来看,38露天甲板在防御大落角炮弹时的效能应该远比船壳有效。
除了俾斯麦,其他船的等效换算都一目了然,但是到了俾斯麦上立刻变得无法理解了。
麻烦贴一下怎么换算。
怎么算的?你看懂原文了吗?107是指等效于107mm厚度的水平装甲。
110mm是68度倾斜的,如果炮弹着角是15度的话,打这块就是37度,当然是不利于抗弹的。
俾斯麦的等效不行是有原因的,作者说:“As will be seen in the analysis of the BISMARCK's deck protection below, the 1.97" deck has the unfortunate property that it will deflect a completely penetrating projectile at high obliquity downward, decreasing the impact obliquity against the lower armor deck and reducing the protection afforded by the lower deck at a range of striking velocities and impact obliquities that the ship would otherwise be protected against. If the weather deck were reduced in thickness to only 1.5" (38 mm), which is common in its contemporaries, it would not do this to battleship-caliber projectiles and it would be more effective! This is one of the few cases where increasing the armor decreased the protection it afforded! This will be analyzed in detail below.”
炮弹在打穿50mm的露天甲板后会往下转,也就是说会发生转正,因此命中主水平装甲的时候的入射角就会变小,所以更容易将其打穿。但如果厚度缩小到38mm的话,就不会让战列舰级别的炮弹发生转正。
怎么换算,原文里有,自己去看。 |
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