Electromagnetic Railgun at Terminal Range

170112-N-PO203-142 DAHLGREN, Va. (Jan. 12, 2017) The Office of Naval Research (ONR)-sponsored Electromagnetic Railgun (EMRG) at terminal range located at Naval Surface Warfare Center Dahlgren Division (NSWCDD). The EMRG launcher is a long-range weapon that fires projectiles using electricity instead of chemical propellants. (U.S. Navy photo by John F. Williams/Released)

Porte de port militaire avec système de levage et garde-corps jaunes.
170112-N-PO203-142 DAHLGREN, Va. (Jan. 12, 2017) The Office of Naval Research (ONR)-sponsored Electromagnetic Railgun (EMRG) at terminal range located at Naval Surface Warfare Center Dahlgren Division (NSWCDD). The EMRG launcher is a long-range weapon that fires projectiles using electricity instead of chemical propellants. (U.S. Navy photo by John F. Williams/Released)

Vue d’une porte de port avec mécanisme de levage et structure métallique.