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http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q9

http://www.wired.com/science/discoveries/news/2007/06/underwater_guns

]]>http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q8« sykeo56 : Fine. What if I take off the cannon and slap a pistol grip on it? Does it count then?
No idea, but since you'll be in the shop anyay, make me one!]]>http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q7http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q6http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q5« tragluk:The A-10 is hardly what anyone would describe a 'Firearm'Fine. What if I take off the cannon and slap a pistol grip on it? Does it count then?

I wonder what it is in water that makes it such a great backstop and do those same physics apply regardless of the speed of the projectile?

Plain and simple: viscosity.]]>http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q4« tragluk : The A-10 is hardly what anyone would describe a 'Firearm'

I wonder what it is in water that makes it such a great backstop and do those same physics apply regardless of the speed of the projectile?I'm thinking it's the two hydrogen atoms and one oxygen atom. :-)]]>http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q3
I wonder what it is in water that makes it such a great backstop and do those same physics apply regardless of the speed of the projectile?]]>http://www.plime.com/plime-com/l/61910/1/rss0_91.rss#q2A-10 Thunderbolt

Although the A-10 can carry considerable disposable stores, its primary built-in weapon is the 30 mm GAU-8/A Avenger Gatling gun. One of the most powerful aircraft cannons ever flown, it fires large depleted uranium armor-piercing shells. In the original design, the pilot could switch between two rates of fire: 2,100 or 4,200 rounds per minute. This was changed to a fixed rate of 3,900 rounds per minute. The cannon takes about half a second to come up to speed, so 50 rounds are fired during the first second, 70 or 65 rounds per second thereafter. The gun is accurate; it can place 80% of its shots within a 40-foot (12.4 meter) circle from 4,000 feet (1,220 meters) while in flight. A two-second burst, therefore, will result in about 100 hits on a tank-sized target. The GAU-8 is optimized for slant range of 4,000 feet (1,220 m) with the A-10 in a 30 degree dive.

I've read elsewhere that the canon on this plane can only be fired in short bursts, because the recoil is more powerful than the thrust of the engines!]]>