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

In total there are 50 users online :: 2 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 Adsense [Bot] based on users active over the past 5 minutes

The Team
Global Moderators
global_moderators.png CS

more chamber volume = better?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
  • Author

more chamber volume = better?

Unread postAuthor: brettdotcom14 » Mon Jun 10, 2013 7:58 pm

If the chamber is bigger and you have a longer barrel will it shoot faster than a smaller chamber with smaller barrel?

Im trying to figure out how big to make my chamber

I dont want it to be too big that its awkward to hold but i want it big enough to be somewhat impressive. thats if size matters. id also like decent accuracy. pretty much a well rounded cannon. any suggestions?

Ill be using 4" for the chamber and shooting tennis balls
  • 0

Posts: 49
Joined: Tue Sep 06, 2005 8:50 pm
Reputation: 0

Unread postAuthor: ramses » Mon Jun 10, 2013 8:48 pm

Most definitely, up to a point... As you approach the speed of sound, pneumatics sort of reach their limit of muzzle velocity (although there are some cases where a pneumatic may have exceeded the speed of sound).

I would recommend downloadingGGDTand playing around with it.
  • 0

POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
User avatar
Major General
Major General
Posts: 1679
Joined: Thu May 29, 2008 6:50 pm
Reputation: 3

Unread postAuthor: Technician1002 » Mon Jun 10, 2013 9:31 pm

I definately recommend GGDT. As chamber size increases, the power increases but in a diminishing return fashion so after a certain size bigger makes little change. The barrel can actually be too big and start to lose performance even with an infinate chamber size due to flow friction in the barrel.
  • 0

Last edited by Technician1002 on Tue Jun 11, 2013 1:54 am, edited 1 time in total.
User avatar
Chief of Staff
Chief of Staff
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: jackssmirkingrevenge » Mon Jun 10, 2013 11:27 pm

ramses wrote:I would recommend downloadingGGDTand playing around with it.

  • 0

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
Donating Member
Donating Member
Posts: 24976
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 120

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google Adsense [Bot]

Reputation System ©'