The Saronic Marauder Carries 150 Tons with No Crew

Marauder Specifications Saronic Publishes

Saronic publishes six figures for the Marauder. The ship is 180 feet long. It runs 5,400 nautical miles at base load and 4,100 at maximum load. It cruises at 12 knots and sprints above 25. Maximum payload is 150 metric tons. Publishing a load-dependent range pair is unusual and useful, because it tells an operator what a full deck costs in reach.

The payload converts into something a reader can picture. Naval News reported that the deck takes up to four 40-foot or eight 20-foot ISO shipping containers. Any port that handles containers can load this ship, which turns a logistics mission from a plan into a schedule.

Propulsion is diesel, and Navy Lookout reported four waterjets rather than propellers. Waterjets give a large hull shallow-water access and better handling at low speed. They also remove exposed propellers, which matters on a ship nobody is aboard to inspect.

How Fast Saronic Built the First Marauder

The first Marauder went from initial design to on-water launch in under twelve months. Saronic bought the Franklin, Louisiana shipyard after a $600 million raise in February 2025, and the first hull was built there.

CEO Dino Mavrookas called the pace "a feat the American shipbuilding industry hasn't seen in generations." That is the company's own framing and should be read as such. The underlying dates are checkable, and the second hull was reported to be moving about 25 percent faster than the first.

Saronic has stated a target of up to 20 Marauders a year from that yard by the end of 2026. The third and fourth hulls were under construction as of the May 2026 launch coverage. Build rate is the number to watch here. A 180-foot uncrewed ship only changes fleet arithmetic if it can be produced repeatedly, and no US yard has yet demonstrated that rate for this class.

The Marauder and the Navy MUSV Program

The Marauder is one of seven designs the US Navy selected in May 2026 for at-sea Medium Unmanned Surface Vessel (MUSV) demonstrations. The other six came from Sea Machines, Leidos, Galliano Marine Services, PacMar Technologies, Birdon, and Huntington Ingalls Industries, reportedly entering its Romulus family.

The published thresholds are 2,500 nautical miles at 25 knots in Sea State 4, carrying up to 25 metric tons, with autonomous operation. The Marauder clears the payload bar by a wide margin. It clears the range bar too, if the 5,400 nautical mile figure holds near 25 knots, which Saronic does not state. A 180-foot hull buys that headroom against a requirement written for something smaller, and it also costs more to build than the requirement strictly demands.

Each selected company receives $15 million for the demonstration phase, which ran from June to October 2026. Designs that complete the trials become eligible for follow-on production. The program descends from the Modular Attack Surface Craft (MASC) restructuring of 2025, when the Navy folded its earlier medium and large uncrewed vessel efforts into one line.

• Seven MUSV designs selected in May 2026, Marauder among them
• Threshold: 2,500 nm at 25 kt in Sea State 4, 25 metric tons of payload
• $15 million per company for the demonstration phase, June to October 2026
• Marauder competes against six other designs, only one of which has a public vessel name

What the Marauder Is Built to Do

Saronic names four missions: logistics, maritime domain awareness, persistent intelligence, surveillance and reconnaissance (ISR), and research. These are endurance jobs rather than combat jobs. They are also the jobs where taking the crew off a ship changes the economics most.

Consider what a crewed 180-foot vessel needs on a 5,400 nautical mile transit. It needs watch rotations, provisions, rest, and a crew willing to spend weeks doing something dull. The Marauder's pitch is that a ship built for a route nobody wants to sit through can simply run it. A team ashore watches the telemetry and takes control when a decision is needed.

Saronic also presents the Marauder as dual-use, meaning commercial work as well as defense. No commercial contract for the vessel has been published. Read the claim as a stated intention rather than a demonstrated market, and watch for a named commercial customer before treating it as proven.

What 150 Metric Tons of Payload Buys

The Marauder carries 150 metric tons. No smaller uncrewed vessel is close. A 24-foot USV carries a sensor and some fuel. A ship carrying eight 20-foot containers can move a supply run that would otherwise need a crewed vessel and its crew.

Standard containers make that practical. ISO boxes can be packed by anyone, craned by any container port, and swapped between missions without touching the ship. A vessel with a bespoke payload bay has to be loaded by people who know that ship. One with a container deck does not.

The same deck also explains the dual-use claim. Commercial freight and defense logistics look identical to a container crane, so the hardware does not need changing between the two. The contract, the route and the insurance change instead, and none of those has been demonstrated commercially for this vessel yet.

Recovery and Port Handling

A 180-foot uncrewed ship raises questions a small USV does not, and Saronic publishes no answers. Who berths it, who maintains it between missions, and what happens when a waterjet fails 2,000 nautical miles out are all open.

The recovery problem scales with the hull. Losing a cheap 24-foot boat is a cost of doing business. Losing a 180-foot ship with a container deck is not. The operator either keeps it inside a recovery radius, or accepts a risk that erodes the reason for removing the crew. Neither Saronic nor the Navy has published how the Marauder is meant to be recovered.

Port handling is the quieter constraint. A vessel this size needs berth space, fuel, and a yard that can lift it, and uncrewed status does not remove any of that. Waterjets help by cutting draft, which widens the list of usable harbours. It does not shorten the list of things a shore team still has to do.

How the Marauder Compares to the MUSV Field

Comparing MUSV entrants on specifications is harder than it looks, because most of the seven have not published vessel figures. Saronic and Huntington Ingalls Industries are the two with public vessel identities, the Marauder and the reportedly entered Romulus family. The rest entered designs the Navy has seen and the public has not.

That gap is itself informative. A company publishing full range, speed and payload figures before a trial has made a commitment it can be measured against. A company that publishes nothing keeps its options open through the demonstration phase. Neither approach predicts who wins, and both change what an outside reader can fairly say about the field.

The comparison that can be made is structural. Saronic builds in a yard it owns, which means its build-rate claims can be checked against hulls in the water. Established shipbuilders in the field own yards too, with decades of naval programs behind them. The USV companies comparison sets those approaches side by side.

What Is Not Published about the Marauder

Saronic publishes no unit price for the Marauder. There is no beam or draft, no launch-and-recovery detail, and no specification for the sensors or communications fit. The company also does not state how long the ship can stay out, which is a different question from how far it can travel.

The autonomy description is deliberately broad. Saronic's material describes a software platform that gives operators real-time telemetry and the ability to intervene, which it calls human-on-the-loop. What the ship decides between those interventions is not specified anywhere first-party.

For current figures, check Saronic's published vessel specifications directly. That page has already changed once this year: two smaller boats that appear throughout older coverage are no longer listed on it.