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 54 users online :: 4 registered, 0 hidden and 50 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Coaxial Questin

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

Coaxial Questin

Unread postAuthor: magnum9987 » Mon Jul 28, 2008 8:49 pm

I have settled on building a coaxial, for its compactness for combat use (Yay). I have settled on a 1.5 in barrel and 54in long. I only want the barrel to extend just outside the chamber, at most 4 in. I need to know will the gun still operate if 50in of the barrel is inside a combustion chamber 54 in long, for a total of 58 in in length?
  • 0

http://www.spudfiles.com/forums/viewtop ... Revolution in the absolute is not initiated by swords, guns, and bullets, but by words-
The New RobesPierre
User avatar
magnum9987
1st Lieutenant
1st Lieutenant
 
Posts: 274
Joined: Wed May 07, 2008 5:02 pm
Reputation: 0

Unread postAuthor: TwitchTheAussie » Mon Jul 28, 2008 9:00 pm

It will but it will perform poorly. According to whatever studies were done on coax combustions, they seem to lack more power than a conventional combustion.
  • 0

Raise your horns if you love metal.
spudgunning is like sex, once you've tasted, you can't wait til next time.
-
CpTn_lAw
User avatar
TwitchTheAussie
Brigadier General
Brigadier General
 
Posts: 980
Joined: Tue Feb 06, 2007 3:23 am
Reputation: 0

Unread postAuthor: magnum9987 » Mon Jul 28, 2008 9:02 pm

Damn! I will have to raise the diameter of the chamber
  • 0

http://www.spudfiles.com/forums/viewtop ... Revolution in the absolute is not initiated by swords, guns, and bullets, but by words-
The New RobesPierre
User avatar
magnum9987
1st Lieutenant
1st Lieutenant
 
Posts: 274
Joined: Wed May 07, 2008 5:02 pm
Reputation: 0

Unread postAuthor: frankrede » Mon Jul 28, 2008 9:05 pm

Or just build a pneumatic.....
in which coaxials are more common and effective.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: magnum9987 » Mon Jul 28, 2008 9:14 pm

not an option, i have a pathetic air compressor, and pneumatics arnt as good for a battlefield, which is my hope for the spuddy im building.
  • 0

http://www.spudfiles.com/forums/viewtop ... Revolution in the absolute is not initiated by swords, guns, and bullets, but by words-
The New RobesPierre
User avatar
magnum9987
1st Lieutenant
1st Lieutenant
 
Posts: 274
Joined: Wed May 07, 2008 5:02 pm
Reputation: 0

Unread postAuthor: frankrede » Mon Jul 28, 2008 9:19 pm

magnum9987 wrote:not an option, i have a pathetic air compressor, and pneumatics arnt as good for a battlefield, which is my hope for the spuddy im building.

O RLY?
http://www.spudfiles.com/forums/erg-sb- ... 15171.html
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: MrCrowley » Mon Jul 28, 2008 10:47 pm

magnum9987 wrote:pneumatics arnt as good for a battlefield

So that explains why most paintball guns are pneumatic in operation :roll:


Pneumatics are far better then combustions on the 'battlefield' until someone builds a working full auto or semi-auto combustion.
  • 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

Sponsored

Sponsor
 


Unread postAuthor: TurboSuper » Tue Jul 29, 2008 5:45 am

How crappy can your compressor be? You can charge a pneumatic with a bicycle pump.
  • 0

"If at first you dont succeed, then skydiving is not for you" - Darwin Awards

TurboSuper
Brigadier General
Brigadier General
 
Posts: 986
Joined: Thu Jun 16, 2005 1:44 pm
Reputation: 0

Return to Combustion Cannon Discussion

Who is online

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

Reputation System ©'