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16inch 发表于 2012-11-10 20:24 
我去其他地方看过很多帖子，不少人都认为英国舰炮有上强装药的潜力，但是那仅针对MKVII 14寸和MKI 15寸，几 ...
因为16寸本来设计初速是823，因为试射的时候炮管烧蚀严重，甚至有膛线剥离的倾向，才把初速降下来的。这要是强装药得是什么效果？
"British Battleships of World War Two" credits these guns as being originally designed with a muzzle velocity of 2,700 fps (823 mps) and a maximum range of 41,983 yards (38,389 m). The very first test firings of these guns found that they had a serious wear problem, with a barrel life of only 180 rounds. It was also found that there was a considerable loss of accuracy during continuous firing, as there was a tendency for the projectiles to strip the rifling out of the guns ". . . due to the hammering action of the short bodied, long headed projectile on its way down the bore . . ." As a result, the rifling in the liners was changed (known as Mark II rifling) for newer guns, the powder charge and chamber size were reduced to the figures shown in the tables above and the diameter of the projectile driving band was increased. Even with these changes, the barrel life and accuracy still compared poorly with the previous 15"/42 (38.1 cm) Mark I.
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发表于 2012-11-10 19:49
发表于 2012-11-10 20:17
