Projectile hang times

Post questions and info about combustion (flammable vapor) powered launchers here. This includes discussion about fuels, ratios, ignition systems and anything else relevant to launchers powered by igniting things like hairspray or propane.

Postby SpudBlaster15 » Mon Nov 13, 2006 12:08 am

Just wondering, how long have you gotten a potato, fired from a combustion cannon, to hang in the air? Today I managed to get a potato fired out of my over/under cannon to hang for 17 seconds using starting fluid as fuel. I would like to know how this compares to the results of others.

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Postby BewareOfDog » Mon Nov 13, 2006 12:50 am

I've had tennis balls and golfballs hang for about that long, but with 5-6 foot barrels...

Getting a potato to seal well, and getting the mixture right, it would seem as though a 15 second hang-time is about average for most launchers with a barrel 4 feet or longer.- Yours sounds about average, if not a little better than. ;)
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Postby brogdenlaxmiddie » Mon Nov 27, 2006 11:36 am

i shot a potatoe section 200 yds with a 9 foot gun... barrel= 5 feet
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