SeaRush Makes Its Debut! 3D-Printed Unmanned Vessel Targets Mass Production

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February 26, 2026 Applications 9660

SeaRush: MARIN tests 3D-printed unmanned surface vessel and targets scalable series production

In the Netherlands, the research institute MARIN has tested SeaRush on the water for the first time—in Wageningen. The hull of the prototype of a so-called USV (Uncrewed/Unmanned Surface Vessel) was produced by 3D printing in less than a week and then equipped as an operational test platform. The concept is scheduled to be demonstrated in June during the MUST 2026 exercise in coordination with multiple USVs.

The aim is to design, manufacture, and iteratively improve unmanned boats rapidly. In doing so, MARIN supports the transformation of the Royal Netherlands Navy toward a fleet in which crewed and uncrewed systems work closely together. A key building block is the use of additive manufacturing processes to shorten development times and implement modifications at short notice.

The hull of the experimental USV was produced entirely by 3D printing. The company IMPACD Boats translated the concept into a printable design, while CEAD supported process preparation. The boat body was printed at the Dutch Boat Factory in Delft within a few days. This was followed by outfitting the vessel into a functional system, including an outboard drive and remotely controlled steering. The combination of digital design and large-format 3D printing makes it possible to adapt geometries quickly and test new variants without the need for complex mold production.

The background to this development is a growing demand for unmanned maritime systems. Increasing security-policy requirements, the rising importance of the North Sea, and limited personnel resources are driving the testing of new operational concepts. In the accompanying research program KNOWONE, MARIN is investigating how multiple USVs can operate in coordination with crewed units. Following successful simulations, these concepts are to be demonstrated at sea for the first time in 2026 using multiple SeaRush platforms.