BIG RED

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.
maka_velli_005
Private
Private
Posts: 7
Joined: Fri May 06, 2005 4:54 pm

Mon May 09, 2005 8:55 pm

This is one of my first combustion cannons. It features a 4" SCH 40 chamber @ 18.5" long with a 3" SCH 40 barrel @ 36.5" long. It also has direct propane injection. Let me know what everyone thinks.
Attachments
Photo005.jpg
User avatar
CS
Moderator
Moderator
Posts: 1837
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah

Donating Members

Tue May 10, 2005 3:13 pm

Why did you make your gun with a 3" barrel? If you use a smaller size barrel and leave you chamber the same your gun will shoot alot farther and harder. Good job on the propane injection espically if it is your first gun.
User avatar
iamthewalrus
Corporal
Corporal
Posts: 559
Joined: Mon Feb 28, 2005 9:28 pm
Location: Iowa (SO BORING!!)

Tue May 17, 2005 9:52 pm

i think u should get a closer pic. what do u use for ignition, a bbq lighter, stungun, flint spark?? and i agree with pimp, make the barrel smaller, u'll get a lot more power and distance. also, does it have a chamber fan??
i got connections with the modfia, watch who ur talkin to noob.


talk to me on AIM at iamthwalrus3
maka_velli_005
Private
Private
Posts: 7
Joined: Fri May 06, 2005 4:54 pm

Sat May 21, 2005 2:06 pm

Yeah I use an electric BBQ ignitor. The ones you put a battery in. Also there is a chamber fan and I do get a lot of power from this cannon. I agree though a smaller but longer barrel would be better.
Image
Post Reply