In the movie Aliens in the Attic the kids build a spud gun that they use to fight aliens invading Earth. It is also illegal to discharge any firearm within a certain (not many feet) distance from the highway. Dry ice launchers [ edit ] PVC dry ice cannon in use, 1.5kg (3 pounds) of concrete is poured at the bottom to reinforce it, and plastic sleeves are used to stiffen the lower (highest pressure) part. Just make sure nobody spots you and fire the cannon on your or a friends piece of land, between trees and far away from other homes if possible. New stuff". The Spudgun Technology Center. 14 January 2010 [6 July 2002] . Retrieved 16 August 2011.

For those of you who’ve ever felt the need to launch small pieces of potato at your fellow man (or woman), this is the perfect tool. If the barrel is less than 16 inches then it is NOT a rifle, and is a hand gun, and if the muzzel energy greater than 6 foot pounds it is classed as a section 5 firearm and is illegal for almost everyone. In Germany, a spud gun does not differ legally from any other firearm (for ones that use combustion to propel the projectile) or air rifle. The manufacture, acquisition and possession is therefore subject to the same requirements as for any other weapon of the same category. Since there is no known model developed before 1871, which would classify that model as an antique, spud guns are not subject to the eased regulations regarding antique weapons. Therefore any non-combusting spud gun with a maximum projectile energy of 7.5 joules can be owned by anyone without a license, while their manufacture still requires one. The legal possession of any other such weapon requires a gun license. Any combustion cannon with a potential muzzle energy of greater than 1 ft-lb (it may be 1 Joule, I forget) will fit into one of these groups.

Combustion powered spud guns typically have the least complex designs, the four basic elements of which are: now if you live in a top floor flat and start shooting potatoes out the window across a built up area.... i can see that problems would arise...

The Spud Gun is an old fashioned toy given new life. It's a miniature lethal vegetable weapon (there's a sentence I bet you never thought you'd read), which scoops bits of potato out of… well, a potato, and fires them at high pressure at whoever you aim at (unless you're a reaaaaally bad shot). In some jurisdictions spud guns are outlawed or have restrictions on their use and may require licenses and certification of the gun. Larda (31 July 2008). "Lardas First Hybrid - HyGaC20". SpudFiles. Archived from the original on 15 September 2012 . Retrieved 2009-06-01.Compared to the operation of other spud guns, dry ice bomb cannons are similar in firing principle to a light-gas gun of the pneumatic type; the plastic bottle performing the task of the burst disk albeit in a less controlled manner. When buying partner items like this one, your contract of sale will be with our Range Plus Partner instead of us. OSHA Safety Hazard Information Bulletin on the Use of Polyvinyl Chloride (PVC) Pipe in Above ground Installations". Occupational Safety and Health Administration. 20 May 1988 . Retrieved 16 August 2011. In Iron Man 3, Tony meets a boy named Harley, who owns a potato gun which he uses to threaten Tony. At the end of the movie, as thanks for his help, Tony builds Harley a newer and better potato gun.

A potato cannon is NOT considered a Firearm in the US, but it IS considered one here?I know, Gun Laws in the US are much, much less strict than they are here in the UK, and fair enough if governments have different considerations - but if a Potato Cannon is NOT considered a Firearm in the US, WHY is it in the UK? Sprinkler valve (otherwise known as a solenoid valve): The use of irrigation sprinkler valves as pneumatic valves has become increasingly popular for spudgunning. These valves are intended to be electrically triggered causing a solenoid to depressurise a diaphragm and allow airflow through. It is also possible to remove the solenoid and, instead, to actuate the valve manually with a blowgun to depressurise the diaphragm. Such modifications allow the valve to open as much as 3 to 5 times faster. Golf ball launchers: at some charity outings players can make a donation and launch a golf ball over 300 yards and use that as their tee shot. Usually the vendor hired by the event organizer launches the ball for safety and liability reasons. By the combustion of a gaseous fuel-air mixture; this is generally called a combustion launcher, and its pressure is limited primarily by the energy density of the fuel-air mixture (less than 100 psi (0.7 MPa) with all safe fuels). schmanman; etal. (March–April 2007). "(NEW) S.W.A.T v.3". SpudFiles. Archived from the original on 17 April 2013 . Retrieved 16 August 2011. Cannon with a calculated range exceeding 1 mile.Arabe, Katrina C. (23 April 2001). "A Dynamic Duo: Thermoplastics and Compressed Air Systems". Industry Market Trends. ThomasNet News . Retrieved 16 August 2011. The potato cannon can trace its origin to the World War II-era Holman Projector, which was a shipboard anti-aircraft weapon. [7] Launcher types [ edit ] In the TV series House, M.D. episode " The Dig", House is attending a spud gun show with Thirteen, where he uses the spud gun to threaten a teenage competitor who taunts House. By working with a variety of trusted Range Plus Partners, we’re able to offer our customers a wider selection of products.

Using steel and much higher pressures of 800psi (55bar) or more, but achieving these pressures is difficult. CO 2 gas, although it can reach these pressures, is not suitable due to its high density. So of you get yourself a cronograph.... determine the mass of your projectile you can calculate your energy at muzzle tune it till you get around 11.5 Foot Lbs with a barrel lengh over 16 inches then that's just an air rifle,, it you want to go shorter than 16 inch then your muzzel energy must drop to under 6 foot pounds! ok?Pierson, Hazel M.; Price, Douglas M. (Spring 2005). "The Potato Cannon: Determination of Combustion Principles for Engineering Freshmen" (PDF). Chemical Engineering Education. 39 (2): 156–159 . Retrieved 15 August 2011. [ permanent dead link] According to the NFA and GCA previously mentioned, it must be muzzle loaded, not rifled, or use any projectile which is intended to be used as a weapon. Any device using compressed air would be completely exempt from both. The highest projectile speed recorded from a spud gun is 933.3m/s (3,062ft/s) (approximately 2.7 times the speed of sound) with a 16.6-gram (256gr) 20mm plastic slug from a hybrid using a 20MPa (2,900psi) pre-ignition mixture of air and propane. [22] Steel: The very high-pressure rating of steel piping makes it a familiar sight on high-powered hybrid cannons. It is however much more expensive than any other common piping material. The extra weight and joining difficulties are also a consideration.