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Subject: How close is this diagram and the specs to the real thing? If real, who let the word out?
Nanheyangrouchuan    5/12/2005 11:34:27 AM
http://jczs.sina.com.cn/2005-05-12/1140288294.html picure of a supposed US rail gun system with specs near the bottom of the story http://jczs.news.sina.com.cn/2004-10-10/1741234119.html story about the development, cost and more specs
 
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ArtyEngineer    RE:How close is this diagram and the specs to the real thing? If real, who let the word out?   5/12/2005 12:12:26 PM
Sorry dont read chinese!! Is there an english language verison of the website?
 
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doggtag    RE:How close is this diagram and the specs to the real thing? If real, who let the word out?   5/12/2005 5:35:06 PM
I do not recall if it was in an issue of Jane's Defence Weekly, or what. But I do remember reading an article in some defense-related magazine, with the same picture and more, several months ago. There were even contractor weblinks for more info. I'm digging...
 
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Nanheyangrouchuan    Artiengineer   5/12/2005 5:44:21 PM
SYSOPS turned off pictograph character input otherwise I could walk you through the stats that are listed, the cost that is given, etc. If I can pinch off some time today or tomorrow morning I'll list the stats according the numbers given.
 
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doggtag    Found this so far   5/12/2005 7:40:15 PM
General Atomics had an advertisement in JDW several weeks ago. Their website lists this program: http://www.ga.com/atg/railgun.php and their electromagnetics group lists some additional interesting projects (like EM launch and recovery for a future US CVN) http://www.ga.com/atg/ems.php at the bottom is a similar picture to that in the sina link.
 
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Nanheyangrouchuan    RE:How close is this diagram and the specs to the real thing? If real, who let the word out?   5/12/2005 7:56:50 PM
2005年4月29日报道 A British article is cited as the source. It was designed at an American university (can't make out the pin yin translation, de ke sa si {Duquense? Duke? ). In march of 2005 in London, there was a conference related to artillery in England and the gun was revealed (doesn't mention if this was an open or closed exhibition). The article discusses the existence of the gun before the USN became interested in it. projectile engergy at muzzle: 64 million joules intial velocity: 2500 meters/second
 
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Nanheyangrouchuan    translated stats from first link (the one with the diagram)   5/12/2005 8:15:53 PM
maximum range: beyond 500,000 meters projectile velocity: 1600 meters/second ****correction to first projectile energy statement. The first stat, at 64 million joules, is the naval variant, all stats up to here are for the naval variant. Land variant projectile energy: 20 million joules initial velocity: 1400 meters/second maximum range: beyond 100,000 meters land variant projectile velocity: 700 meters/second
 
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Nanheyangrouchuan    summary of second link   5/12/2005 8:30:27 PM
1. Cites a russian article (October 10, Russia New Society newspaper) 2. There will be tests this July for the Naval variant. 3. The article discusses modifications to the shell that allowed an extension of the range by 370,000 meters (I get the impression there is a coating on the shell that burns off, projecting the shell from being melted by the heat of the rail gun. 4. Discusses the possibility of an aircraft variant in the near future. 5. Bullet velocity is around Mach 4. There are other discussions of modifications to speed, etc. I hope this is all old news.
 
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EW3    RE:translated stats from first link (the one with the diagram)   5/12/2005 8:36:37 PM
That's the same stuff from Janes. Thought the school was in Texas though.
 
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EW3    RE:summary of second link   5/12/2005 8:41:10 PM
Actually the second link is new stuff. Interesting. We will certainly hear about it if it gets tested in July. Yes, there is a coating that will melt away, it's apparent in all the documents as they report "initial projectile weight" specifically. You shoot this from the front of an aircraft and the plane will stop in midair, or go backwards for a while. Might be interesting to point it out the back of a plane ;) Propulsion plus weapon in one package. Besides the power requirements are huge.
 
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Nanheyangrouchuan    RE:translated stats from first link (the one with the diagram)   5/12/2005 9:55:23 PM
Then "De Ke Sa Si" is possibly pin yin for Texas.
 
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