Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 53 users online :: 5 registered, 0 hidden and 48 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Lund Technologys - LVVWS

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

Lund Technologys - LVVWS

Unread postAuthor: mobile chernobyl » Sun Nov 20, 2011 9:41 pm

I ran a search on this here, and it was only briefly mentioned in the VARGAS thread.

Fairly interesting concept they have here - maybe not on the chemistry side of things, but they have a very nice implementation of a semi-automatic combustion gun at least!

For those that haven't heard of it yet - the LVVWS, or Lund Variable Velocity Weapons System is a gun that seemingly just use electrolysis to "split" water and provide a variable amount of propellant to a projectile which is in most cases - a rubber bullet. They are advertising this on the basis that it can be a less-than-lethal weapon, and instantly convert to a, well lethal weapon?

take a look on their website for yourself!
http://lundtechnologies.com/products.html

and a patent:
http://www.freepatentsonline.com/7254914.pdf

Image

Interesting... :idea:

One possible benefit of the electrolysis is that it supplies both the oxidizer and fuel, so venting the combustion chamber may not be as much of an issue... (although looking through the patent, it seems they address the exhaust gasses)

Another benefit of electrolysis is that it can power a small onboard fuel cell, which can then perform even more electrolysis and it will never need batteries! PM MACHINE!!!! [/boyntonstu talk]

Just so everyone is clear - the fact that it uses "browns gas" or whatever you want to call it is not the interesting part (although using onboard electrolysis is clever!), the fact that it is a repeatable self-contained unit is!
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Re: Lund Technologys - LVVWS

Unread postAuthor: MrCrowley » Sun Nov 20, 2011 11:23 pm

mobile chernobyl wrote:Another benefit of electrolysis is that it can power a small onboard fuel cell, which can then perform even more electrolysis and it will never need batteries! PM MACHINE!!!! [/boyntonstu talk]

[youtube]http://www.youtube.com/watch?v=8X_Ot0k4XJc[/youtube]

:D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: D_Hall » Sun Nov 20, 2011 11:32 pm

Odd.

I mean, a 12 gauge with a box magazine (Saiga 12 or similar) can be non-lethal or VERY lethal with just a swap of a magazine. And that's a proven, reliable, cheap system.

What's the advantage of the LVVWS over something like that?
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: mobile chernobyl » Sun Nov 20, 2011 11:42 pm

D_Hall wrote:Odd.

I mean, a 12 gauge with a box magazine (Saiga 12 or similar) can be non-lethal or VERY lethal with just a swap of a magazine. And that's a proven, reliable, cheap system.

What's the advantage of the LVVWS over something like that?


Very true, and much less to go wrong, a simple jam can easily be field serviceable. However you don't want to be in the thick of the action and think, "oh no, I'm almost out of water!" or "my batteries are almost dead!" or some other comical situation you might get yourself into with a portable electrolysis unit.
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: irisher » Sun Nov 20, 2011 11:47 pm

Most auto-shotguns dont work with less than lethal ammo.
  • 0

User avatar
irisher
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 420
Joined: Mon Dec 29, 2008 2:53 am
Reputation: 0

Unread postAuthor: mobile chernobyl » Sun Nov 20, 2011 11:49 pm

irisher wrote:Most auto-shotguns dont work with less than lethal ammo.


Not enough gas generated from them for the auto-loading mechanism? makes sense.
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: jackssmirkingrevenge » Mon Nov 21, 2011 1:00 am

  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Sponsored

Sponsor
 


Unread postAuthor: MrCrowley » Mon Nov 21, 2011 1:27 am

jackssmirkingrevenge wrote:You're better off hanging an FN303 under the barrel of your assault rifle.

Are you? :wink:
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: jackssmirkingrevenge » Mon Nov 21, 2011 1:57 am

MrCrowley wrote:Are you? :wink:


Yes, I have no interest in baseball :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: POLAND_SPUD » Mon Nov 21, 2011 6:50 am

What's the advantage of the LVVWS over something like that
Answer:
With the incorporation of an automatic range finder, the velocity can be automatically varied to ensure efficacy and safety.


don't ask me if it is practical or better than existing system... they already have real assault rifles with real bullets, which are pretty damn good crowd dispersal weapons :D
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: jackssmirkingrevenge » Mon Nov 21, 2011 8:56 am

POLAND_SPUD wrote:With the incorporation of an automatic range finder, the velocity can be automatically varied to ensure efficacy and safety.


TheDaystate Mk.4already has a built in chrony that regulates the strength of the solenoid hammer based on the velocity of the previous shot.

I don't suppose it's a great technological leap to also hook it up to a digital rangefinder and adjust velocity accordingly, though then you've altered the trajectory so you would also need to hook it up to a digital sight that would (maybe through augmented reality) also change the crosshair.

At the end of the day, seems like quite a bit of money and effort to spend on not injuring hippies...
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Gippeto » Mon Nov 21, 2011 9:23 am

jackssmirkingrevenge wrote:At the end of the day, seems like quite a bit of money and effort to spend on not injuring hippies...



Hmmm...how'd my coffee suddenly end up on the monitor screen? :lol:

That IS priceless. :wink:

Edited for shpelunk
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: mobile chernobyl » Mon Nov 21, 2011 9:48 am

jackssmirkingrevenge wrote:
At the end of the day, seems like quite a bit of money and effort to spend on not injuring hippies...


LOL :D

Barrett has a slightly more lethal form of the optical range finder, but it doesn't control the power, it does make suggestions on the round to use though. The shooter is left to make the sighting adjustments...
http://www.gunblast.com/Barrett-BORS.htm
  • 0

Last edited by mobile chernobyl on Mon Nov 21, 2011 10:10 am, edited 1 time in total.
User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Unread postAuthor: jackssmirkingrevenge » Mon Nov 21, 2011 10:06 am

Image

:D :D :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Re: Lund Technologys - LVVWS

Unread postAuthor: velocity3x » Mon Nov 21, 2011 11:36 am

mobile chernobyl wrote:They are advertising this on the basis that it can be a less-than-lethal weapon, and instantly convert to a, well lethal weapon?



I witnessed a demo of the LVVWS late last year at Nellis AFB. IMO, it has 2 modes. It can escalate from "slightly annoying" at close range to "mildly annoying" at close range. I suppose it could be "lethal"..... if one held it by the muzzle, swinging it wildly like a baseball bat. Self-promoting articles should be viewed with caution.
  • 0

User avatar
velocity3x
Brigadier General
Brigadier General
 
Posts: 827
Joined: Fri Jun 05, 2009 3:09 pm
Location: Yuma, Arizona
Country: United States (us)
Reputation: 7

Next

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'