The Electromagnetic Railgun is a long-range weapon that fires projectiles using electricity instead of chemical propellants. Magnetic fields created by high electrical currents accelerate a sliding metal conductor, or armature, between two rails to launch projectiles at 4,500 mph. Watch as the Office of Naval Research and Naval Surface Warfare Center, Dahlgren Division, conduct the first shot of the Railgun at the terminal range November 2016. AiirSource Military covers events and missions from