GA railrun tests on JHSV

The Navy has a Mach 7 cannon - an experimental electromagnetic railgun – ready to start firing from the Zumwalt-class USS Lyndon B. Johnson destroyer as early as 2018. One of two railgun prototypes is undergoing testing aboard the Joint High-Speed Vessel USS Millinocket (JHSV-3). An electromagnetic railgun’s non-explosive projectile is as small as a breadbox and less expensive than a Tomahawk cruise missile, which means enhancing a ship’s effectiveness, saving space and money. (Source: USNI News 02/05/15) Central Mississippi/Gulf Coast Note: General Atomics’ Tupelo, Miss., facility designs and fabricates railguns for the Navy. The Austal USA shipyard at Mobile, Ala., builds JHSVs for the Navy.