Which Is Better

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
Post Reply

Barrel Diameters

Poll ended at Wed Apr 19, 2006 10:07 pm

2" diameter
0
No votes
4" diameter
0
No votes
smaller then 2"
0
No votes
smaller then 2"
0
No votes
smaller then 2"
0
No votes
 
Total votes: 0
Damien
Private
Private
Posts: 18
Joined: Sat Jan 07, 2006 9:27 pm

Mon Jan 09, 2006 10:07 pm

which is better for combustion launchers

curved chamber or chamber in-line with barrel

chamber bigger than barrel or same size diameter

chamber same length or shorter

NOTE FROM PIMPMANN22: I de-cap locked your subject. No need to cap lock seeing as its already got "[Poll]" in white letters in front of it.
Top
User avatar
Atlantis
Corporal 5
Corporal 5
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida

Tue Jan 10, 2006 2:39 pm

In-Line definetly. If the chamber were the same size there would be no choke point but, you'd have a really long chamber. Go with a bigger chamber. Chamber volume should be about 1.5 times greater than the barrel's volume. I'm sure someone here would like to explain that.
Top
User avatar
drac
Corporal 4
Corporal 4
United States of America
Posts: 899
Joined: Sun Apr 24, 2005 8:56 am
Location: Avon, NY
Been thanked: 2 times

Tue Jan 10, 2006 8:33 pm

Wrong section. But yeah, i think Inline is best for combustions.
Top
taterjim
Specialist
Specialist
Posts: 123
Joined: Sat Jul 23, 2005 10:14 am

Wed Jan 11, 2006 10:15 pm

I once experimented with a combustion that had the same size chamber and barrel. Believe me it was lousy. The chamber needs to be ,in my opinion ,at or near twice the size of the barrel to have any performance.The only exception I have to that is that my tennis ball barrel 2.5" works well with a 4" chamber.
Top
Post Reply

Return to “Combustion Cannons”