This Autonomous Navy Ship Just Passed a Huge Milestone

In This Article:

The research arm of the U.S. Navy has successfully sailed an autonomous ship from San Diego to Hawaii and back with little human intervention. That's a huge accomplishment for the Navy, as well as for the contractor who supplied the brains for the vessel.

The Office of Naval Research said the Sea Hunter, a 132-foot-long trimaran designed by Leidos Holdings (NYSE: LDOS), completed the mission without a crew save for short boardings from an escort vessel to monitor electrical and propulsion systems. The voyage was part of a series of tests begun in 2016 and expected to extend through the rest of the year.

The Sea Hunter makes a turn on the Willamette River in Portland, Ore.
The Sea Hunter makes a turn on the Willamette River in Portland, Ore.

The Sea Hunter gets under way on the Willamette River in Portland, Ore. Image source: U.S. Navy photo by John F. Williams.

The ship is at the forefront of an effort by the Navy to rapidly expand its autonomous capabilities, with the service hoping to see the same sort of dramatic expansion of capabilities the Air Force experienced when it first introduced drones over the battlefield in the 1990s. The Sea Hunter is designed to stay at sea for months, hunting for mines, tracking submarines, keeping shipping lanes safe, and collecting intelligence.

The ship was built by privately held Vigor Industrial of Oregon, with Leidos providing the design and the technology to allow it to operate without anyone on board. The technology is based in part on work done for NASA's Jet Propulsion Laboratory for the Mars Exploration Rover.

A bigger Navy at a faction of the cost

While it is hard to imagine the Navy deploying crewless destroyers or larger vessels any time in the foreseeable future, the ability to deploy specialized autonomous craft has the potential to reduce the strain on the service and allow it to focus resources in other areas. The Sea Hunter was first envisioned as a submarine hunter, but as trials have progressed and the Navy has had more time with the ship, the potential use cases for the vessel have grown.

Eventually, the Navy hopes to use autonomous vessels in combat situations, providing sensor data and offensive firepower and to overwhelm and distract enemy radar and surveillance equipment to help shield crewed ships from danger.

While production costs are unclear, the Navy has previously said it believes it can procure autonomous ships fitting the Sea Hunter profile for as little as $20 million apiece and operate them for $15,000 to $20,000 per day. By comparison, a new Arleigh Burke-class destroyer costs $1.8 billion, and with its full crew costs $700,000 per day to operate.

The Pentagon has an ambitious timetable when it comes to uncrewed vessels. In 2016, Robert Work, at the time Deputy Secretary of Defense, said he hoped to see autonomous flotillas operating in the Pacific and Persian Gulf region within five years. Although that deadline will almost certainly be missed, this success of the latest test should provide momentum to the effort.