[Public-List] Air cannon?

[Michael Grosh]

That would have been highly amusing. I guess the specter of antes being
upped is there,  but the lead salvo being 8"
artillery...game,set,match,George.
Michael

On Mon, May 2, 2022, 10:04 George Dinwiddie via Public-List <
public-list at lists.alberg30.org> wrote:

> Michael,
>
> When we got an 8" PVC pipe to store the Sunfish rig, I told your father
> that it was a potato cannon. I got the idea to buy a sack of potatoes,
> char one end of each with a propane torch, and dump them on his pier.
>
> Never did it, of course. It seemed like a lot of work, and I'd already
> gotten the pleasure of thinking about it.
>
> - George
>
> On 5/2/22 7:04 AM, Michael via Public-List wrote:
> > My Daughter bought a potato cannon over the internet for some high
> > school science project-with my credit card. I still have it someplace.
> > PVC, uses a fire system/water sprinkler valve for a trigger (that kind
> > of valve is an immediate open/shut), it's caliber is actually tennis
> > ball. Charged up with 150 lbs of air, well, let's just say I wouldn't
> > want it aimed at me. That could be regulated by charging pressure.
> > The project involved students demonstrating non chemical projectile
> > delivery systems-trebuchets, catapaults etc. I don't think air cannons
> > were considered in the list of possibilities. The physics teacher's
> > quote was, after demonstrating, "Sarah, you are going to get me fired".
> > Anyway, if you want to give it a shot (pun not really intended) I can
> > look for it. You'll need 1/2 dozen tennis balls or so to dial in the air
> > pressure, I wouldn't plan on recovering the balls unless a big open
> > field is involved (or dingy recovery boat), and an air compressor. It
> > holds air for more than one shot, and it doesn't take a whole lot of air
> > volume (I think one of those 12 volt car compressors would do it).
> > Accurate enough to scare the begeesus out of something to about 75
> > yards, I'd say. Total range a lot more than that.
> > Michael Grosh
> > #220
>
> --
>   ----------------------------------------------------------------------
>    When I remember bygone days                         George Dinwiddie
>    I think how evening follows morn;            gdinwiddie at alberg30.org
>    So many I loved were not yet dead,           http://www.Alberg30.org
>    So many I love were not yet born.                          also see:
>                 'The Middle' by Ogden Nash     http://idiacomputing.com
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>
>
>
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