The Navy faces several technological hurdles as it seeks to develop a usable electromagnetic railgun and won't be able to field one until the mid-2020s even after cutting the power requirements in half, according to a recent report submitted to Congress by Navy acquisition chief Sean Stackley. The report, "Electromagnetic Railgun System: Final Report to the Congressional Defense Committees," was received by the Senate Armed Services Committee on Sept. 28. It says the Navy's decision to dial back the power...
