Virginia-Class submarine montana completes first sea trials

The US Navy’s new Virginia-class nuclear-powered submarine Montana has completed its initial sea trials.

The vessel’s propulsion plant was evaluated while performing high-speed maneuvers on the surface and underwater.

The trials also included submerging the 7,800-ton ship for the first time.

Builder of the submarine, Huntington Ingalls Industries, said that the testing program will continue until the boat is delivered to the navy later this year.