The U.S. Navy has shelved its ambitious electromagnetic railgun, citing cost, technical risk, and brutal rail-wear issues.

EMS' new systems can send off a projectile at Mach 6 (4,604 mph), depending on mass and the weapon's muzzle velocity, keeping pace with cruise missiles.

Key Points and Summary - The Navy railgun advanced fast—and then vanished. The reasons were practical: barrels cracked from brutal heat and electromagnetic stress in under 30 shots, fire rates lagged, ...

Technology is said to offer advantages such as high muzzle velocity and low noise, consistent with ‘supership’ blueprint ...

TOKYO—Japan plans to conduct a second at-sea test of its developmental railgun in June, as the next phase of the technology’s evolution advances under the leadership of the Acquisition, Technology & ...

With its program to develop prototype electromagnetic rail guns entering its second phase, the U.S. Office of Naval Research (ONR) is launching an initiative to develop technology for a projectile for ...