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战斗力 鹅
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注册时间 2011-4-3
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引用第1446楼justice于2012-07-10 01:50发表的 :
衣阿华主炮杀伤半径是半个足球场
United States of America
16"/50 (40.6 cm) Mark 7
http://www.navweaps.com/Weapons/WNUS_16-50_mk7.htm
This was possibly the best battleship gun ever put into service. Originally intended to fire the relatively light 2,240 pound (1,016.0 kg) AP Mark 5 projectile, the shell handling system for these guns was redesigned to use the "super-heavy" 2,700 pound (1,224.7 kg) AP Mark 8 before any of the USS Iowa class (BB-61) battleships were laid down. This heavier projectile made these guns nearly the equal in terms of penetration power to the 46 cm (18.1") guns of the Japanese Yamato class battleships, yet they weighed less than three-quarters as much.
As modernized in the 1980s, each turret carried a DR-810 radar that measured the muzzle velocity of each gun, which made it easier to predict the velocity of succeeding shots. Together with the Mark 160 FCS and better propellant consistency, these improvements made these weapons into the most accurate battleship-caliber guns ever made. For example, during test shoots off Crete in 1987, fifteen shells were fired from 34,000 yards (31,900 m), five from the right gun of each turret. The pattern size was 220 yards (200 m), 0.64% of the total range. 14 out of the 15 landed within 250 yards (230 m) of the center of the pattern and 8 were within 150 yards (140 m). Shell-to-shell dispersion was 123 yards (112 m), 0.36% of total range.
The Armor Piercing shell fired by these guns is capable of penetrating nearly 30 feet (9 m) of concrete, depending upon the range and obliquity of impact. The High Capacity (HC) shell can create a crater 50 feet wide and 20 feet deep (15 x 6 m). During her deployment off Vietnam, USS New Jersey (BB-62) occasionally fired a single HC round into the jungle and so created a helicopter landing zone 200 yards (180 m) in diameter and defoliated trees for 300 yards (270 m) beyond that.
A persistent anecdote is that the Iowa class suffered from alignment problems until after the Battle of Leyte Gulf. William Jurens, a noted expert on US naval weaponry, together with Iowa crewmembers and the staff at NSWC Dahlgren, performed a search of the official records for detailed data on this specific problem, but could find nothing in the files suggesting that the alignments were in any way out of the ordinary. Mr. Jurens' suspicion is that there may have been an oblique reference to an alignment problem in some document that was taken out of context; perhaps they were waiting for parts.
The Iowa class battleships are the sole survivors of the battleship era that can still be placed into service, although they now exist mainly as memorials.
The weapon is constructed of liner, A tube, jacket, three hoops, two locking rings, tube and liner locking ring, yoke ring and screw box liner. Some components were autofretted. As typical of USN weapons built in the 1940s, the bore was chromium plated for longer barrel life. Uses a hydraulically operated Welin breech block that opens downwards. The screw box liner and breech plug are segmented with stepped screw threads arranged in fifteen sectors of 24 degrees each.
可能是这里吧，用来震倒一片树林让直升机起降可能有一个足球场那么大，用来挖坑也就15X6m。重点是这是HC弹，用于shore bombardment使用高装药的高爆弹才有面积杀伤的效果，你想靠铁疙瘩去挖大坑根本不可能。另外这炮的muzzle speed是810m/s，终末速度有1Mach就不错了，何来3Mach
那个提ML-20的，榴弹炮拆迁靠的是专门的AC弹（anti-concrete），AC弹的特点是采用多层压紧的装药产生多级震波来破环建筑。你还真以为投些铁疙瘩就能拆迁了？
火力投射不考虑杀伤半径就没有意义。 |
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楼主: 真炮灰
沪公网安备 31010702007642号 )
发表于 2012-7-10 01:50
要击级那么肉肉的，[strike]还顶着一个生殖器，[/strike]当然是众矢之的啦
飞行型去高山上采矿不是挺好，还增加了对抗飞机的手段
