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South Korea's HD Hyundai and U.S. defense technology company Anduril Industries launched a 600-ton autonomous surface vessel at HD Hyundai Heavy Industries' Ulsan shipyard on November 12, 2026. The new vessel integrates HD Korea Shipbuilding & Offshore Engineering's VAone autonomous navigation and vessel-management system with Anduril's Lattice mission-autonomy platform. Designed for uncrewed reconnaissance, surveillance and maritime intelligence missions, the vessel is scheduled for sea trials off South Korea before further testing in U.S. waters in early 2027. The companies are developing the platform for potential U.S. Navy and other defense and commercial applications.
600 Tons. Zero Intended Onboard Crew. Two Autonomy Systems.
A new South Korean-built vessel launched November 12 with U.S. mission-control technology, ahead of Korean sea trials and planned American testing.
The Two-Part Autonomy Architecture
The platform joins control of the vessel itself with mission planning and coordination. Functions are described by the developers; full performance on this new hull remains to be established in trials.
Additional payload concepts remain subject to configuration and testing.
Do Not Confuse the Two Test Vessels
The October test validates particular technologies on a converted vessel, not full sea-going performance of the newly launched ship.
Former U.S. Navy test vessel modified for autonomy demonstration. A 3.5-hour trial included navigation, mission changes and emergency-response scenarios.
Purpose-developed steel-hull design launched in South Korea. Dedicated sea trials are still ahead; a fully demonstrated endurance figure has not been published.
The Development Sequence
The First 30 Navy Drone Ships Have Already Been Awarded
The September 2026 medium USV procurement and the Hyundai–Anduril MASC ambition must be distinguished before assessing the new vessel's commercial opportunity.
Procurement and Testing Status
The Navy's September awards are not the same as an award for Hyundai's new 600-ton ship, and MASC is a separately described program with its own development requirements.
| Program / Company | Confirmed Status | Verified Evidence | What Has Not Been Established |
|---|---|---|---|
| Galliano Marine Services | 10 MUSVs awarded | September 29 Navy production OTA after Phase I testing. | Actual final lifecycle costs and individual vessels' future operational records. |
| HII | 10 MUSVs awarded | September 29 Navy production OTA after Phase I testing. | Detailed final configuration and in-service performance. |
| Saronic Technologies | 10 MUSVs awarded | September 29 Navy production OTA after Phase I testing. | Actual delivered cost by hull, long-term operational reliability. |
| HD Hyundai + Anduril | 600-ton prototype launched | November 12 launch in Ulsan; planned Korea and U.S. trials; proposed MASC-capable family. | No award among the 30 above; no announced serial production contract, unit price or completed endurance trial for this hull. |
| Navy MUSV Phase II | Integration pipeline opened | Call for Solutions released September 23; Maritime Marketplace intended to broaden offerings. | Any specific award, onboarding decision or contract for this newly launched prototype. |
| MASC Block 0 | Separate acquisition pathway | Congressional design-certification requirement; Hyundai–Anduril identified a MASC-oriented variant in its plans. | Whether or when this specific design receives a MASC contract, and whether applicable certification has been completed. |
Congress Has Specified More Than a Short Autonomy Demonstration
For covered medium and large USV programs, a qualifying operational demonstration must run continuously without specified maintenance or repair. Equivalent to 30 days.
MASC Block 0 construction contracting is conditioned on Navy certification of purpose-built unmanned ships without conventional human-support requirements.
Hyundai–Anduril's Planned Production Path
How Many Autonomous Ships Does Continuous Maritime Surveillance Require?
Estimate uncrewed vessel fleet size, on-station availability, procurement requirements and shore support costs without assuming that a launched prototype is already operational.
Mission Requirements
Start with mission assumptions, not unverified vessel specifications. Inputs are hypothetical and fully editable.
Advanced Reliability & Shore Operations
Whole-vessel count calculated from the assumed mission cycle and effective annual availability. This does not guarantee uninterrupted simultaneous station coverage.
Planned Fleet vs. Required Annual Coverage
The bars compare average annual station-day equivalents, capped at 100% coverage. Weather, faults and simultaneous outages could still create gaps.
Maintenance Downtime Sensitivity
Required vessel count when each ship experiences different annual maintenance downtime, keeping other assumptions unchanged.
Illustrative Multiyear Fleet Expenditure
Constant vessel count and operating costs. Year zero records acquisition expenditure; subsequent years include vessel support, shore personnel and systems.
| Year | Fleet Procurement | Vessel Support | Shore Operations | Cumulative Spend |
|---|
Mission cycle = on-station days + two times one-way transit days + turnaround days. Available operating days per vessel = (365 − annual maintenance days) × (1 − weather loss percentage) × (1 − communications loss percentage). Expected annual station-days per vessel = available operating days × on-station days ÷ mission cycle.
Required station-days = requested simultaneous surveillance stations × 365 × desired annual coverage fraction. The modeled required fleet is the ceiling of required station-days divided by station-days available from one vessel. Planned fleet coverage = planned ships × annual station-days per ship ÷ (requested stations × 365), capped at 100%. The gap is the additional whole vessels required to meet the selected annual target.
Shore operator full-time equivalents = ceiling of [stations × target coverage fraction × 24 hours × 365 days × operators per watch ÷ annual working hours per employee]. Annual fleet cost = required ships × assumed annual support cost per ship + estimated operator FTE × annual loaded labor cost + annual shore-systems cost. Year-zero procurement = required ships × assumed acquisition price. Total horizon cost = procurement plus the selected number of years of annual fleet and shore costs, without discounting.
All duration, staffing and cost inputs are user assumptions. The $40 million default purchase price is a comparison drawn from the Navy's September 2026 average MUSV procurement announcement. It is not Hyundai–Anduril pricing. No validated endurance, fuel consumption, range, sensor capability, fleet availability or crew-control ratio for the November 12 prototype has been published in the launch information reviewed.
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