The U.S. Navy has selected seven Medium Unmanned Surface Vessel (MUSV) designs to advance into a prototype evaluation phase, according to reporting from USNI News on May 22, 2026. The selections mark a significant step in the service's push to field a large autonomous surface fleet capable of distributed maritime operations across the Indo-Pacific.
Prototype Requirements and Acquisition Model
The seven selected designs will each enter a prototype evaluation phase requiring at-sea demonstration before the program advances to production-level procurement in FY2027. The Navy has not publicly disclosed acquisition terms or a final timeline for the prototype phase. The Navy has also not publicly named the seven companies whose designs were selected.
The prototype evaluation model reflects the Navy's broader intent to confirm operational performance before committing to full-rate production. Only vessels that prove out in open-water trials are expected to move toward procurement consideration in FY2027, aligning acquisition investment with demonstrated capability rather than design specifications alone.
Selecting seven designs simultaneously rather than narrowing to a single vendor early in the process gives the Navy a wider competitive pool to draw from as it assesses real-world vessel performance. That breadth is consistent with the program's scale: a 47-vessel procurement through FY2031, followed by a long-term steady-state fleet of 72 MUSVs, requires a sufficient industrial base to sustain production over many years. Evaluating multiple designs in parallel helps the Navy identify which hull configurations, propulsion systems, and autonomy architectures best meet the operational requirements before committing billions in follow-on procurement.
Technical Specifications
The MUSV requirement calls for vessels approximately 41 meters in length with a full-load displacement of 142 metric tons. At that size, the MUSV sits between small unmanned boats used for close-in harbor security and larger surface combatants, occupying a medium-endurance operational niche designed for persistent presence in contested maritime zones. The platform must be fully autonomous — no crew aboard for routine operations — making it well suited to the distributed maritime operations doctrine the Navy is pursuing in the Indo-Pacific.
The modular mission payload architecture is central to the Navy's flexibility goals. By building the vessel around interchangeable mission packages, the service can swap sensors, electronic warfare suites, or strike payloads without redesigning the hull. This modularity is a deliberate design choice aligned with distributed maritime operations doctrine, which calls for dispersing firepower and sensors across many smaller platforms rather than concentrating capability on a few large ships. The approach also simplifies logistics: a common hull platform with swappable payloads reduces the number of distinct maintenance and sustainment pipelines the Navy must manage across a fleet of 47 or more vessels.
Scale of the Program: FY2027 Through FY2031
The FY2027 Shipbuilding Plan allocates $171 million for the procurement of three MUSV hulls in FY2027 alone. Looking further out, the Navy's planning documents project $3.11 billion in MUSV spending through FY2031 to build a fleet of 47 vessels, according to Army Recognition reporting from May 14, 2026.
The long-term objective is more ambitious still. The Navy's stated goal is to eventually operate 72 MUSVs at steady state, with cumulative fleet projections reaching 95 vessels by FY2031 if program momentum holds. That cumulative figure accounts for vessels procured across all years of the program through FY2031, including early prototype and low-rate initial production hulls as well as the main procurement ramp. The Navy's autonomous surface vessel expansion program represents one of the most significant unmanned platform investments in the current shipbuilding plan, and its Indo-Pacific framing reflects the direct strategic competition driving the urgency behind the numbers.
The Indo-Pacific focus of the program is explicit. Distributed maritime operations are designed to complicate adversary targeting by spreading naval presence across a wide geographic area, reducing the vulnerability that comes with concentrating high-value assets in predictable locations. MUSVs fit that doctrine precisely: affordable enough to field in numbers, capable enough to carry useful payloads, and unmanned so that losses do not carry the same strategic and human cost as losses of crewed vessels.
What It Means for Contractors
For the three vessels budgeted in FY2027, the $171 million allocation works out to roughly $57 million per hull at even distribution — though contract structures may differ. Prime contractors that secure an FY2027 award will be well-positioned for follow-on work as the program scales toward 47 and ultimately 72 vessels. The subcontractor market for navigation autonomy, communications, payload integration, and maintenance support is also substantial across a multi-decade, multi-billion-dollar program of this scale.
Companies not among the seven selected in this round are not necessarily out of the program permanently. As the fleet scales toward its 47-vessel procurement target through FY2031, production capacity and supply chain depth will become important factors. New entrants with relevant capability may find opportunities at future decision points if early designs underperform or if demand outpaces existing supplier capacity.
Beyond the prime contract tier, the MUSV program is expected to generate demand for a wide range of supporting capabilities. Autonomous navigation software, radar and sensor payloads, satellite communications terminals, data link systems, and over-the-horizon command and control infrastructure are all required for these vessels to function as intended. Firms with relevant products and services that did not enter the hull competition directly may still find substantial work in the supply chain that develops as the program matures.
The procurement target for FY2027 also signals that the Navy views this program as operationally urgent rather than a long-term science and technology investment. Three hulls in the first production year, followed by a ramp to 47 over five years, is an aggressive acquisition posture. Contractors across the defense industrial base would be well served to begin tracking MUSV-related solicitations now, well in advance of the FY2027 procurement actions that will follow the prototype evaluation phase. With $3.11 billion committed through FY2031 and a long-term fleet ceiling of 72 vessels, the MUSV program is one of the more durable and sizable autonomous platform opportunities currently visible in the Navy's shipbuilding pipeline.
