PRC/PLAN Laser and Rail Gun Development Thread

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kurutoga

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Data of the experimental Chinese railgun appeared in a
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. All public info. This may not be the same thing PLAN purchased, but at least it gives us some ideas for reference.
  • Projectile weight: 10kg
  • Muzzle speed: 2500m/s roughly 7 times speed of sound
  • Rail length: 10m
  • Projectile energy: 32MJ (2500*2500*10/2)
  • Average acceleration: 32k g (g being acceleration of gravity)
  • Energy storage fully charged: 400MJ
  • Voltage: 7500V
  • Current: 4.3 million ampere
  • Energy released for each shot: 142MJ (this means for each full charge it can shoot 2.8 almost 3 times)
  • The total energy in electric pulse for each shot: 80MJ (this means 62 MJ is wasted in CPA discharge process, and 48MJ wasted on the railgun itself, think about cooling requirements)
  • Energy storage method: CPA (compensated pulsed alternator) at roughly 60MJ per cubic meter, not using capacitors
  • Entire system weight: 50 tons
  • Chinese railguns mentioned: 1MJ in 2006, 7MJ in 2010
There was some estimates done earlier in this thread, in that estimate each shot will consume 150MJ energy, pretty close to this one (142MJ)
 
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K

kurutoga

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nicky said:
this is how a railgun site looks
Click to expand...

The USN prototype is using capacitors, I am sure it is very advanced (has some advantages and are more hi-tech), but according to the paper I just quoted above, capacitors have less power density (30 times worse than CPA by volume). That probably explained why there are so many containers compared to the prototype on the Chinese ship.
 
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K

kurutoga

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still in Wu Han
 

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K

kurutoga

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Jura said:
LOL! "experimental"?! it's only talking like
"Our team has developed a co-simulation model of ..."

specs of anything REAL would be of course top secret
Click to expand...

I only translated some content (from Chinese to English) from the guy who translated selected parts of the content of the paper (from original text to Chinese) that mentioned the actual physical gun including details of the implementation with the specs. There was a section for physical results vs actual simulated results. I do not have direct access to the full paper. Not sure why the abstract section said that. It looks like the focus of the paper is their energy storage CPA (vs super capacitors)and simulations in various situations. If you do have the access please copy some content thanks
 
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nicky

nicky

Junior Member
2K: "still in Wu Han"
you mean those are photos of the day?
no wonder: they had just probably tested the gun somehwere near wuhan and now started some serious study of it, covering as much as they can all around.
might take off some elements for lab study or something somehere in the city.
 
K

kurutoga

Junior Member
Registered Member
nicky said:
2K: "still in Wu Han"
you mean those are photos of the day?
no wonder: they had just probably tested the gun somehwere near wuhan and now started some serious study of it, covering as much as they can all around.
might take off some elements for lab study or something somehere in the city.
Click to expand...

photographer said those were taken on 2/6
 
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