Monday, February 04, 2008
The U.S. Navy test fired an incredibly powerful new big gun designed to replace conventional weaponry aboard ships. Sci-fi fans will recognize its awesome power and futuristic technology. The big gun uses electromagnetic energy instead of explosive chemical propellants to fire a projectile farther and faster. The railgun, as it is called, will ultimately fire a projectile more than 230 miles (370 kilometers) with a muzzle velocity seven times the speed of sound (Mach 7) and a velocity of Mach 5 at impact. The test-firing, captured on video, took place Jan. 31 in Dahlgren, Va., and Navy officials called it the "world's most powerful electromagnetic railgun." The Navy's current MK 45 five-inch gun, by contrast, has a range of less than 23 miles (37 kilometers). The railgun has been a featured weapon in many science fiction universes, such as the new "Battlestar Galactic" series.
In this photo provided by the U.S. Navy, particle debris ignites as a test slug exits the an Electromagnetic Railgun (EMRG) laboratory launcher, or railgun at the Naval Surface Warfare Center, in Dahlgren, Va. Future U.S. Navy ships will be powered by electric drive propulsion, making EMRG - which uses electricity rather than chemical propellants to launch projectiles - possible, according to the U.S. Navy. The railgun works by sending electric current along parallel rails, creating an electromagnetic force so powerful it can fire a metal projectile at tremendous speed.It has also achieved newfound popularity among the 20-something-and-under generation for its devastating ability to instantaneously shoot a "slug" through walls and through multiple enemies in video games such as the "Quake" series of first person shooters. The Navy's motivation? Simple destruction. The railgun's high-velocity projectile will destroy targets with sheer kinetic energy rather than with conventional explosives. "I never ever want to see a Sailor or Marine in a fair fight. I always want them to have the advantage," said Chief of Naval Operations, Admiral Gary Roughead. "We should never lose sight of always looking for the next big thing, always looking to make our capability better, more effective than what anyone else can put on the battlefield." The railgun's lack of explosives means ships would be safer, said Elizabeth D'Andrea, Electromagnetic Railgun Program Manager. The Navy's goal is to demonstrate a full-capability prototype by 2018.