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Sea Machines unveils STEAMRACER class Autonomous Ship for US Navy MASC Program

Date: 19 Feb 2026 Author: Raymond

Sea Machines joins the race for US Navy Modular Attack Surface Combatant (MASC) program orders with design on STEAMRACER autonomous ship intended for defense market.

Carved from the shipbuilding space in 2015, Sea Machines Robotics has spent the past decade developing and deploying the world’s leading marine autonomy across fleets operating on most oceans. Over that period, the company has invested more than $50 million in venture-backed capital to develop, field, and harden a fully integrated autonomy stack. This investment addressed one of the most technically complex challenge of unmanned surface vessels such as Modular Attack Surface Combatant (MASC): reliable software–hardware integration at scale. Having completed the difficult work up front, Sea Machines is now positioned to rapidly integrate mature, field-proven autonomy into purpose-built autonomous platforms. Today, the company applies its deep shipbuilding roots to deliver a purpose-built autonomous surface ship engineered for modern naval operations.

Introducing the STEAMRACER-class autonomous surface ship, purpose-built to meet the Navy’s immediate and future fleet requirements for fully unmanned maritime operations. Designed around our hardened, AI-enabled remote command architecture, the platform delivers high speed, extended endurance, modular open-deck payload capacity, and a secure onboard data environment to support distributed operations at scale.

While engineered from inception for persistent unmanned execution, STEAMRACER retains the flexibility to operate in a limited, short-duration manned configuration when mission requirements dictate – providing operational flexibility without compromising its unmanned-first design.

STEAMRACER integrates mature autonomy with proven US shipbuilding capacity through partnerships with St. Johns Ship Building, TOTE Services, Ring Power, Incat Crowther, and EMI-W&O. To meet the Navy’s resilient and robust communications standards, Sierra Nevada Company will provide its Maritime Advanced Secure Transmission (MAST) solution, an open, scalable architecture backed by proven secure communications and cybersecurity expertise.

Previously other US companies announced interest to MASC program, among them: Blue Water Autonomy with Liberty class based on Damen Stan Patrol 6009 design, Anduril in partnership with HD Hyundai Heavy Industries, BlackSea Technologies with project based Global Autonomous Reconnaissance Craft (GARC), Senesco Marine, Eureka Naval Craft in partnership with Bordelon Marine Shipbuilders and Greenroom Robotics.

📃📷 Source: Sea Machines