May 07, 2015
Naval Surface Warfare Center test firing in January 2008.
According to gizmag, “a rail gun is basically an electric motor that’s been folded out and laid flat. Like an electric motor, the rail gun uses an alternating electromagnetic field to pull along an armature (…) When it reaches the end of the rail, the armature releases the projectile, which flies toward its target.”
This new weapons system is capable of firing an aerodynamic shell at speeds of Mach 7.5 (5,700 mph /9,200 km/h) and having a reach of 110 nautical miles (126 mi / 203 km). With neither explosives nor propellant, rail guns rely only on electromagnetic forces to destroy an opponent. However, despite the hype, progress in acquiring this new weapon system has been slow.