US Navy puts seven robotic-warship designs to sea, $5B behind a 'hybrid fleet'
Saronic's Marauder went design-to-water in under a year; the Navy plans 36 MUSVs in FY26 under Replicator
Summary
The US Navy has down-selected seven Medium Unmanned Surface Vessel (MUSV) designs into an at-sea prototype phase: Birdon, Galliano, Huntington Ingalls, Leidos, PacMar, Saronic and Sea Machines. Each design that completes testing — running through October 2026 — earns $15M and follow-on production eligibility. The Navy plans to procure 36 MUSVs in FY26 using ~$5B from the 2026 Reconciliation Act set aside for "marketplace" contracting, all aligned to a "hybrid fleet" doctrine and the Pentagon's Replicator goal of thousands of autonomous platforms by 2027. Venture-backed Saronic launched its first Marauder MUSV from design to on-water in under a year — a pace it likens to WWII shipbuilding — directly challenging incumbent primes. The move follows the Black Sea proof that cheap USVs can defeat conventional fleets.
By the numbers
- 7 — MUSV designs in the at-sea prototype phase.
- 36 — MUSVs the Navy plans to buy in FY26.
- ~$5B — 2026 Reconciliation Act money earmarked for marketplace contracting.
- $15M — award to each design completing at-sea testing; follow-on production eligible.
- <1 year — Saronic's Marauder design-to-water timeline.
Why it matters
The competition tests whether venture-backed shipyards can out-build the primes on the metric that now matters — speed and volume of cheap autonomous hulls. It is the US answer to both the Black Sea USV revolution and China's maritime-swarm push, and a wager that Replicator can field mass before a Taiwan contingency.
What to watch
- At-sea test results by October 2026 and which firms win follow-on production.
- Whether Saronic's speed survives the move from prototype to scaled output.
- FY27 funding and how MUSVs integrate with crewed ships and counter-EW hardening.