q*d
发帖数: 22178 | 1 当然现在是还在研究prototype阶段的,
我认为这种电磁炮是原理上的升级换代,
一门大炮也得多少钢材,炮弹还得不少推进的炸药呢,
光炮弹的推进炸药的体积,能省个至少50%吧? |
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q*d
发帖数: 22178 | 3 这种音速超过5倍以上的物体属于高超音速范围,
空气摩擦产生的温度据说是一个很大的问题 |
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q*d
发帖数: 22178 | 4 打卫星得超过第一宇宙速度7.9Km/s吧,
这才7Mach,2.2Km/s.
真能打卫星了,估计也能发射卫星了 |
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q*d
发帖数: 22178 | 5 二战时美帝研制的近炸引信,
里面的电子管的玻璃可以承受10000g的过载 |
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t******t
发帖数: 15246 | 6 发射卫星必须用超长导轨，40000G的加速度只能射铁疙瘩。 |
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q*d
发帖数: 22178 | 7 激光现在有谱吗?
拦导弹因为导弹有战斗部,把装药点炸了你就成功了,
人家发来一个钢球,你只能把它烧化了 |
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t******t
发帖数: 15246 | 8 卫星上精密的东西太多了，都这么加固，有效载荷不知道增加多少 |
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t******t
发帖数: 15246 | 9 动能弹的有效拦截只能是动能打击，在某个飞行阶段扰动它一下，动能弹的精度要求很
高，一点扰动就可以了。
当然如果有超大功率激光，直接把动能弹体烧变形得不成样也可以。 |
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q*d
发帖数: 22178 | 10 什么叫要维持那么大的磁场?
发射完了电路就断了,
也就发射那一瞬间要强磁场,大电流 |
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p****t
发帖数: 11416 | 11 无制导纯粹动能弹的精度是没有保证的
有制导的话激光把制导头烧了就行 |
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q*d
发帖数: 22178 | 12 现在在大气层里面有靠谱的强激光吗?
人家这个电磁炮,好歹看着靠谱了
求很 |
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p****t
发帖数: 11416 | 13 美帝不是刚做了激光打导弹的实验么？
我和你的观点恰恰相反，目前激光炮比这个电磁炮靠谱多了 |
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q*d
发帖数: 22178 | 14 我知道有在外太空里发射激光的,
另外,强激光的成本看起来很高 |
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t******t
发帖数: 15246 | 16 能量是大问题，在太空里，那必须打反应堆上去了。成本，如果比起动能拦截弹来说应
该还是省的。 |
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c*********r
发帖数: 19468 | 17 前提是你有前置部署的机载激光器
比方说，tg有了这种电磁炮，用来轰台湾
美帝要防就得用搭载ABL的747在台海巡逻，这根本是不可能的事情
地基激光器做末端防御基本上没有多大用处 |
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C*********g
发帖数: 3728 | 18 打天顶星人，需要各种各样花哨的炮弹。打地球人，这就足够了。 |
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w********r
发帖数: 14958 | 19 10-20 年之后的美帝完胜 今天的美帝。
我等军迷长叹葡萄太酸阿。 |
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a***e
发帖数: 27968 | 20 claim而已
又不是什么200km全程试射，等等吧 |
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a***e
发帖数: 27968 | 21 不知道这东西得怎么做才能精确平衡2分钟的飞行的横风影响
达到5m的精度，5/200000=0.09秒
不知道坦克2000米直射能不能到5cm的弹着精度
可视距离上补偿测量应该简单不少，虽然炮口稳定度可能差点 |
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a***e
发帖数: 27968 | 23 还差4倍
就是说整个电路的packaging都得是这个强度的
不知道黑匣子什么指标 |
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a***e
发帖数: 27968 | 25 这个磁场是脉冲式的
还是要大线圈，散热还得好
总不能打一炮换一套线圈吧
估算一下，10kg重，10cm口径，产生25000g的加速，需要多大的电流*磁场？
25M A*T, 25特斯拉的磁场，1百万安的电流
ITER听说是50KA,15T的水准，这鬼东西得是300KA,90T的，维持0.005秒
很恐怖的说，会不会打开结界？ |
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a***e
发帖数: 27968 | 26 看着这磁场得怎么屏蔽制导线路的电磁感应？
还是炮射制导炮弹靠谱 |
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t******t
发帖数: 15246 | 29 加速器里面哪有90T的磁场，90T的磁场，只有美国FSU的NATIONAL HIGH FIELD LAB的
PULSE MAGNET可以达到，人家那一个磁体就是一栋楼。
10-20T应该不是什么难事 |
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q*d
发帖数: 22178 | 31 这个我不是很了解,
大概知道,100T以上的磁场,一般都是脉冲的吧. |
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q*d
发帖数: 22178 | 35 我看过他们的强磁实验室,
似乎都是拿来做材料研究的,
所以那磁场只要在一个较小的范围内有那么强就可以了 |
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w********r
发帖数: 14958 | 37 有夹具，夹着弹头发射出去。
弹头有制导，有战斗部。
可打200公里，pinpoint accuracy， 2020-2025可装上战舰。 |
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h*******r
发帖数: 847 | 38 未来版本确有此功能，见最后一句
Tulsa-based GWACS Defense develops sniper-busting technology
Shel Jones, vice president of business development at GWACS Defense Inc. ,
wears a wrist monitor attached to a high-tech device for detecting the
source of sniper fire. SHERRY BROWN / Tulsa World
Shel Jones, vice president of business development at GWACS Defense Inc. ,
wears a wrist monitor attached to a high-tech device for detecting the
source of sniper fire. SHERRY BROWN / Tulsa World
Jonathan Turkelson, a GWACS Def... 阅读全帖 |
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p*******r
发帖数: 2204 | 39 http://defense.aol.com/2011/09/20/air-force-clears-f-22-to-fly-
Air Force Clears F-22 To Fly Again; Imposes Extra Safety Measures
National Harbor: The Air Force has cleared the nation's highest performance
fighter, the F-22, for return to flight but the service, unable to pinpoint
the reasons for at least one worrying incident of what clearly appeared to
be hypoxia, has decided to increase medical monitoring of pilots.
"We now have enough insight from recent studies and investigations that a
ret... 阅读全帖 |
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h*******2
发帖数: 5093 | 40 飞行员自己背着氧气瓶飞乐， 真惨啊
performance
pinpoint |
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t*n
发帖数: 14458 | 41 某大国未调查清楚事故原因就继续运行高速运载工具
http://defense.aol.com/2011/09/20/air-force-clears-f-22-to-fly-
Air Force Clears F-22 To Fly Again; Imposes Extra Safety Measures
National Harbor: The Air Force has cleared the nation's highest performance
fighter, the F-22, for return to flight but the service, unable to pinpoint
the reasons for at least one worrying incident of what clearly appeared to
be hypoxia, has decided to increase medical monitoring of pilots.
"We now have enough insight from recent studies and ... 阅读全帖 |
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S***a
发帖数: 3956 | 42 each pilot will be equipped with "certain protective equipment and data
gathering equipment,"
这算啥，人体实验么？
performance
pinpoint |
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g**1
发帖数: 10330 | 43 我共的进度如何？
Raytheon Awarded Naval Power System Contract
$10 million system will power future weapons
TEWKSBURY, Mass., Jan. 30, 2012 /PRNewswire/ -- Raytheon Company (NYSE: RTN)
has been awarded a $10 million contract from Naval Sea Systems Command to
develop a pulsed power system that will enable projectiles to reach great
distances without the use of an explosive charge or rocket motor.
The contract for the preliminary design of a Pulse Forming Network (PFN) is
part of a larger effort by the U.S... 阅读全帖 |
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发帖数: 1 | 44 前几天美海军第六次试射LRASM远程隐形反舰导弹，仅提供点所知细节，令人咂舌
此次是该导弹生产型号的第6次试射，也就是说从生产线下来，而不是实验室手工攒出
来。
与以往不同的是，此次全程逼真模拟了实战条件：
由B1B轰炸机携带, 在加州海面上空作战高度发射，具体射程未透露，估计800公里左右
。开始按预定路线飞行，中途切换为自主巡航。
预定海域近百公里范围内分散摆了十几条船，遥控航行。船上安装了各式电磁干扰装置
，还有防空雷达。图片可以看到船上一个白色发射物，疑为GPS阻塞干扰。反正全不管
用，干扰没用，雷达也没探到。
导弹在目标区上空盘旋，准确地将预设的目标靶船从十几条肉盾船中自主识别出来（用
了pinpoint 这个词），然后下降高度，贴海攻击成功。
令人咂舌 |
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U*E
发帖数: 3620 | 45 Pilots of the Asiana Airlines jet that crashed at San Francisco
International Airport over the weekend allowed the Boeing 777's speed to dip
dangerously low, and then apparently ran out of time to correct their
landing approach, according to preliminary data released by investigators.
While stopping short of pinpointing pilot error as the likely cause of the
fiery crash that killed two teenage passengers and injured dozens of others,
National Transportation Safety Board Chairman Deborah Hersman ... 阅读全帖 |
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l****z
发帖数: 29846 | 46 The Pentagon confirmed on Thursday the secret deployment in Afghanistan over
the past several weeks of the XM25, the newest advancement in small arms.
The XM25 is a revolutionary new Individual Airburst Weapon (IAW) system that
will change the face of war, much like the longbow, gunpowder and nuclear
weapons.
The XM25 is a revolutionary next generation of grenade launchers. Unlike the
single-shot M-79 "Bloop Tube" of Vietnam era, or the M203 tube slung under
M4 rifles, the XM25 is a semi-automat... 阅读全帖 |
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l****z
发帖数: 29846 | 47 到底有多少同性恋？一项最新研究估计，1.7%美国成年人认为自己是同性恋，1.8%认为
是双性恋，8.2%自称曾有过同性性行为
SAN FRANCISCO (AP) — How many gay men and lesbians are there in the United
States? Gary Gates has an idea but acknowledges pinpointing a solid figure
remains an elusive task.
Gates is demographer-in-residence at the Williams Institute on Sexual
Orientation Law and Public Policy, a think tank based at the University of
California, Los Angeles. For the institute's 10th anniversary this week, he
took a scholarly stab at answering the qu... 阅读全帖 |
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l****z
发帖数: 29846 | 48 The economic downturn has not led to more crime—contrary to the experts'
predictions. So what explains the disconnect? Big changes in American
culture, says James Q. Wilson.
When the FBI announced last week that violent crime in the U.S. had reached
a 40-year low in 2010, many criminologists were perplexed. It had been a
dismal year economically, and the standard view in the field, echoed for
decades by the media, is that unemployment and poverty are strongly linked
to crime. The argument is str... 阅读全帖 |
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l****z
发帖数: 29846 | 49 By Thomas Lifson
The Reuters news service once again has made itself a laughingstock by
publishing a mistake-riddled hit piece on Marco Rubio, all but ruling him
out as a vice presidential nominee for the GOP because of alleged financial
problems. Many of which turned out to be untrue. Five corrections were
necessary.
Matt Lewis of the Daily Caller outlines a total of 7 falsehoods or
exaggerations in the story. Dylan Byers of Politico spoke to Reuters staff
who refused to go on the record (an in... 阅读全帖 |
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l****z
发帖数: 29846 | 50 May 7, 2012 by Michael Laprarie
One year after the killing of Osama Bin Laden by US Special Forces, the
President is eager to take credit for what many consider the high point of
his first term. But many questions about the mission still remain.
In an op-ed published in the Wall Street Journal last week, former Attorney
General Michael Mukasey revealed several embarrassing details about the
executive operations of the mission:
A recently disclosed memorandum from then-CIA Director Leon Pa... 阅读全帖 |
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