> Seriously though, what's the purpose of such a thing? Mr. Tweed
> beat me to the math, but dumping 8 horsepower into a brick in less
> than a tenth of a second is a pretty non-trivial task

And thanks to Mr Tweed for those maths and construction ideas. The
pressure he's talking about doesn't seem so high

Actually I do have a compressor for something else, which is maybe
why I keep thinking air-gun. A percussive force doesn't sit easily with
me, mainly because if it all works this sled could be fired 1000 times
a day most days. I'm sure metal fatigue would be a factor. Somebody's
eventually going to get a faceful of sled and I'll get a faceful of fist

I can't say exactly what the application is. It's legitimate though, but
a niche market. So no, you won't all want one ;-)

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