Sea Hunter

Cruising range is "transoceanic,"[6] 10,000 nautical miles (12,000 mi; 19,000 km) at 12 knots (14 mph; 22 km/h)[7] fully fueled with 14,000 U.S. gallons (53,000 L) of diesel, enough "to go from San Diego to Guam and back to Pearl Harbor on a tank of gas.

[9] The trimaran hull provides increased stability without requiring a weighted keel, giving her a higher capacity for linear trajectories and better operations in shallow waters, though the greater width decreases maneuverability.

[10] The ship has a host of non-standard features because of her lack of crew, including an internal layout that offers enough room for maintenance to be performed but not for any people to be permanently present.

[9] Deputy U.S. Defense Secretary Robert Work said that if weapons are added to the ship, a human would always remotely make the decision to use lethal force.

Upcoming trials will include testing of sensors, the vessel's autonomy suite, compliance with maritime collision regulations, and proof-of-concept demonstrations for a variety of U.S. Navy missions.

Sea Hunter gets underway on the Willamette River following a christening ceremony in Portland, Oregon in April 2016.