Okay I'll get it rigged up and see how it goes. Thanks.

I'm 50% done with my 2nd cannon. The first one being from 12 years ago.

Reading here has really helped and I plan to be launching this weekend.

I've never installed a chamber fan but it appears to be an apocalyptic mistake to not have one.

I've found plenty of info on installing....good stuff.

I ...

That was just to see if anyone was actually reading my post.

Well done sir.

I just looked in the garage its actually a 330ft tape measure.

I'm in AZ and plan camp near some meadows near flagstaff.

I'll bring my quad and zip out to the impact points.

I'll collect what data I can relevant or not.

That was fast...thanks. Okay I'll try both methods and see if it makes any dif this weekend. I'm building my cannon this week for use this weekend.

Although there are variables involved I'm bringing a 100ft tape measure to see if I can document anything measurable.

Flame away. Sorry for not already knowing this.

If there is a newbie post area...let me know.

I've spend some hours reading the archives. I'm not looking to harvest uranium so the fuel rods can create steam to drive a turbine....or a potato.

My question is: Is it best practice to load the tater ...

It's been a while but for "safety" I remember making it a habit to not screw on the cleanout too tight.

One time I was experimenting with gasoline and the cleanout blew off hitting the plastic lawnchair right behind me making a perfect round hole in the back of it.

After that people listened when ...

Roger that. I'll just get the black ABS cellolose since that's all I can find.

That saves me a lot of hassle riding around. Thanks everyone.

Okay thanks man...I appreciate your help.

I went to homo depot, lowes, and ace, and all they had was the "cellulose core" schedule 40 stuff.

I read that stuff is no good, right? It sure seemed kinda light and brittle to me.

....i'm scouting out plumbing supply stores now.

I'd just buy one ...

I'm probably not explaining this right....

I didn't see any combustable cannons in the showcase that use a 4" ball valve rather than a cleanout to spray the fuel into.

I'm just looking to make something simple. No fan or fuel injection.

I made simple combustion cannon ten years ago that worked ...

Hi, I'm new around here. Got a question.

Screwing the cleanout off/on over and over can get old.

Has anyone tried a 4" Ball Valve as an alternative?

Maybe they can't handle the pressure? I've done some searching and haven't seen anything mentioning it.

I'm not worried about the cost if it ...