That's a good point you bring up. I tend to over think things and went for something with more bends. I assume by an "inline" you me an entire cannon that is joined tip to tail to create a line? But portability is a must. I have a Volkswagen Jetta so hauling this 4ft 10in cannon is going to be hard ...

Thanks for the help. And no, no reason for the T's. I changed my design and i decided to use old parts instead of spending more money. The valve is 1in so i used the orbit specs with 1 in. I'll see about putting the valve up by the barrel. I used GGDT with 39in^3 (just to make volume an even number ...

I'm very inexperienced with cannons. I've built a couple combustion cannons before, the biggest being 6 ft tall (ended up I built it out of DWV :oops: but it still worked :D ) I decided to step up the game though and get more technical. I have questions on valve specifications for use in GGDT and ...