The Navy is seeking to expand its unmanned surface vessel portfolio -- specifically small, long-endurance vessels -- according to a request for information posted Thursday. By reaching out to industry, the Navy wants to “potentially work with vendors to close identified gaps for a rapid fielding Middle Tier Acquisition,” the posting stated. The long-endurance sUSV would ideally be operational for seven days at a minimum, able to maintain a cruising speed of 1 knot, capable of switching navigational modes, able...