[Public-List] Air cannon?

[gdinwiddie at alberg30.org]

Michael,

Perhaps, but that wasn't the lead salvo. I started with bottle rockets. 
Your father responded with larger rockets. I countered with calling, 
pretending to be the Coast Guard checking out a report of a distress 
flare. ... :-)

Those were fun times. I really miss having your parents across the river.

  - George

On 5/2/22 4:53 PM, Michael Grosh via Public-List wrote:
> 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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-- 
  ----------------------------------------------------------------------
   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
  ----------------------------------------------------------------------