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First pic of this year's Flatwater cannon

Posted: Wed Jan 23, 2013 8:22 pm
by wingshooter
Rockie has been on a weight loss regimen, and just finished plastic surgery. Here he is test firing the prototype at the Gilley Compound, northwest of Waco:


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Re: First pic of this year's Flatwater cannon

Posted: Wed Jan 23, 2013 8:34 pm
by Pancho McTavish
Rock....You dyed your hair! Hope that one is a little more reliable than the last FW cannon. Even a trained field artilleryman couldn't figure that one out!

Re: First pic of this year's Flatwater cannon

Posted: Wed Jan 23, 2013 8:49 pm
by steve voss
... and it begins. It's on. :D :D :D Good times.

Re: First pic of this year's Flatwater cannon

Posted: Thu Jan 24, 2013 10:18 pm
by Pancho McTavish
Maybe I'll bring mine up......

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Re: First pic of this year's Flatwater cannon

Posted: Thu Jan 24, 2013 10:19 pm
by Setters Forever
oh yeah!!!!!!!

Re: First pic of this year's Flatwater cannon

Posted: Thu Jan 24, 2013 11:25 pm
by wingshooter
What was your source on the barrel?

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 11:02 am
by kgb
Looks a little stubby. Shiny, though!

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 5:21 pm
by Pancho McTavish
Many years ago I got the barrel from a guy just as the Tulsa gun show was closing down on Sunday. He didn't want to carry it to his car and made me a deal on it. It sat for a few more years and I decided to do something with it. It had short trunions...maybe for a naval carriage....so a machinist patient of mine made them longer. I got the field carriage from the old Cannon Mania website. It's not an exact fit but it's close enough that it works fine unless you want to shoot high angle. The bore is 1". I've never fired a projectile of any kind from it but it makes a hell of a boom with a bit of Fg black powder. We truck it out to my brother's place outside the city limits every 4th of July and fire all day.

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 5:53 pm
by steve voss
Hmmm, I wonder how far we could launch a one inch ball with it?

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 6:03 pm
by Setters Forever
there must be a way to buy one inch ball bearings.....

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 6:46 pm
by fourtrax
Looks like """Rocky""" should have a damned fine chance of hittin the target.

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 8:39 pm
by Pancho McTavish
What is the internal bore pressure generated by a 1" steel ball of X weight in a 1" bore in front of a specified Fg black powder charge ignited by a burning fuze? What is the maximum PSI that an unknown alloy of cast? or milled? brass will safely withstand before bursting? If you don't have the answers to the above, I think we'll just call my cannon a "Salute Cannon"! :lol: :lol: :lol:

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 8:48 pm
by Setters Forever
you could shoot ping pong balls!

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 8:58 pm
by steve voss
Pancho McTavish wrote:What is the internal bore pressure generated by a 1" steel ball of X weight in a 1" bore in front of a specified Fg black powder charge ignited by a burning fuze? What is the maximum PSI that an unknown alloy of cast? or milled? brass will safely withstand before bursting? If you don't have the answers to the above, I think we'll just call my cannon a "Salute Cannon"! :lol: :lol: :lol:
Easy. The ball in front of two pounds of FFg will generate 7250 fps. at 4500 lup. The cannon will easily proof out in excess of 126,000 psi.

No problem.

Re: First pic of this year's Flatwater cannon

Posted: Fri Jan 25, 2013 9:13 pm
by Pancho McTavish
Two pounds of powder would just be a giant salute 'cause there wouldn't be room for the ball! :lol: :lol: :lol: