semi-valveless design
this is just a theory that's been floating around in my head for a while. A valve on th end of the barrel is opened and the unrestricted air flow fires the projectile.
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Unfortunately flawed.
Not only will it's power be limited (because for a considerable time, there will be pressure on both sides of the projectile, resulting in lower net force) but if the ball valve isn't opened very sharpish and cleanly, the projectile is just going to smash into it.
Not only will it's power be limited (because for a considerable time, there will be pressure on both sides of the projectile, resulting in lower net force) but if the ball valve isn't opened very sharpish and cleanly, the projectile is just going to smash into it.
Does that thing kinda look like a big cat to you?
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jackssmirkingrevenge
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...et voila, from semi-valveless to fully valvelessRagnarok wrote:if the ball valve isn't opened very sharpish and cleanly, the projectile is just going to smash into it.
yay!hectmarr wrote:You have to make many weapons, because this field is long and short life
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jackssmirkingrevenge
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It will be worse than if you put the ball valve between the barrel in the chamber, unfortunately the concept is fundamentally flawed.
hectmarr wrote:You have to make many weapons, because this field is long and short life
How is this different then having the ball valve before the barrel?
mobile chernobyl wrote:I can shoot a Canuter Valve off my '82 Chevy Ram F150 AT LEAST 3/4 Mile with 'ma cannon made of soup cans duct taped together, then I just squirt some bacardi 151 in the chamber and hold up my cigarrete lighta and WHOOSH! That thing flies at least 3/4 mile
because you start out with pressure on both sides of the projectile. I just cant imagine it not slowing the ammo down a bit.
I like to play blackjack. I'm not addicted to gambling, I'm addicted to sitting in a semi-circle.
Already suggested this idea, ya gotta remember that Ball Valves have a smaller inner diameter as well. The idea works, it's just not useful.
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Lentamentalisk
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plus, I would imagine it would be nearly impossible to pressureize it with out the projectile traveling at least half of the barrel length, due to the slight pressure buildup behind it...
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This should be possible in some way. But then instead I would use a burst disk, which could also be placed behind the projectile but then it wont be a semi-valveless again.