Euronaval 2026 – Manned brain, unmanned muscle: ST Engineering’s MRV makes its European debut

The Singaporean group presents its MRV unmanned-systems mothership concept in Paris, betting that Manned-Unmanned Teaming is the answer for navies seeking greater operational reach with fewer sailors

ST Engineering’s Multi-Role Vessel (MRV) makes its European debut at Euronaval 2026, which runs from 3 to 6 November at Paris Nord Villepinte. Presented as a scale model, the vessel embodies a proposition centred on distributed Manned-Unmanned Teaming (MUM-T): a crewed mothership designed to deploy and coordinate unmanned systems, extending a navy’s surveillance capabilities, maritime presence and operational reach.

Where a conventional corvette or frigate is optimised primarily around its own sensors and weapons, the MRV is conceived from the outset as a mothership and command hub. Rather than serving simply as a transport for unmanned craft, it is intended to remain the manned command-and-control platform of a wider force package, directing and coordinating multiple unmanned systems while they undertake missions at sea.

A substantial platform with extended reach

The MRV is designed around a substantial hull measuring 150 metres in length, with a beam of 21 metres, a draft of 6 metres, and a displacement of 8,000 tonnes. Its maximum speed is 22 knots, while its stated range of 7,000 nautical miles underline its intended suitability for sustained maritime operations.

These characteristics provide the platform with the endurance and capacity required to operate as a forward-deployed command centre, supporting unmanned assets over extended distances while retaining the ability to operate independently as a manned vessel.

The centrepiece of the concept is the vessel’s stern launch system, from which unmanned surface vessels (USVs) are deployed. Once at sea, these offboard assets are intended to undertake missions such as surveillance, reconnaissance and threat investigation, while the MRV remains the manned command-and-control hub orchestrating their activities. The arrangement keeps sailors concentrated on command, decision-making and coordination while extending the force’s reach across the maritime domain.

Manned-Unmanned Teaming at the heart of the concept

The principle underpinning the MRV is MUM-T. Rather than treating drones and unmanned craft as supplementary equipment bolted onto a conventional fighting ship, the MRV treats them as an organic, distributed force package.

The unmanned systems extend the vessel’s surveillance and operational reach, contribute additional information to the maritime picture and potentially operate in areas where deploying a crewed platform would be less desirable. The manned element remains the decision-making core, retaining command authority while coordinating the activities of multiple autonomous or remotely operated assets.

According to ST Engineering, the result is a force package in which manned platforms and autonomous systems operate as a cohesive whole, extending operational reach, enhancing situational awareness and improving mission effectiveness.

Advanced sensors and weapons

Although the MRV is conceived primarily as a mothership for unmanned systems, its combat architecture also incorporates a substantial suite of sensors and weapons, allowing it to retain independent defensive and operational capabilities.

The vessel’s sensor and cyber architecture includes electro-optical systems, fire-control radar and cybersecurity capabilities. These are complemented by a multifunction radar based on fixed-panel, electronically steered technology, intended to support the vessel’s surveillance and engagement requirements.

Its proposed armament encompasses several layers of defensive and offensive capability.

For air defence, the MRV is equipped with surface-to-air missile systems including MBDA’s MICA and Aster, providing engagement capabilities against aerial threats. A dedicated surface-to-surface missile system adds an offensive capability against surface targets.

The vessel’s gun armament includes a Leonardo 76 mm Strales gun, designed to provide precision engagement capability, together with a 30 mm MK30-C30 remotely controlled weapon system, adding another layer of close-range defence and engagement capability.

The combination of advanced sensors, missile systems and gun armament suggests that the MRV is not intended to be merely a passive support vessel. Its combat systems are designed to complement its mothership role, providing protection and the ability to contribute directly to naval operations.

From Singaporean experience to European ambitions

The MRV does not arrive in Paris from a standing start. ST Engineering’s unmanned credentials are already established in service.

The Venus family of USVs operates with the Republic of Singapore Navy (RSN), while in May 2025 the group secured a contract to supply the service with a complete unmanned mine-countermeasures suite comprising surface vessels, autonomous underwater vehicles and the mission management system that integrates them.

This experience provides an important foundation for the MRV concept. The challenge is no longer simply developing individual unmanned platforms, but integrating them into a coherent operational architecture in which multiple systems can be deployed, coordinated and managed from a single manned vessel.

The RSN’s own fleet of six Multi-Role Combat Vessels represents a separate national programme involving larger vessels measuring 150 metres in length and displacing 8,000 tonnes, with deliveries scheduled to begin in 2028. This programme applies the mothership doctrine at fleet scale, although it should not be confused with the MRV concept presented by ST Engineering at Euronaval.

A proposition for European navies

For European and allied navies weighing how to build distributed maritime capability, the MRV’s debut is therefore less a conventional platform presentation than an offer of a complete approach to MUM-T operations.

The concept addresses several pressures confronting modern naval forces: the need to extend surveillance and operational reach, the growing importance of autonomous systems, the increasing cost of maintaining large crewed fleets and the requirement to operate across increasingly complex maritime environments.

By combining a substantial manned platform, advanced combat systems and the capacity to deploy and coordinate unmanned assets, ST Engineering is proposing a different way of organising naval power.

The MRV’s central proposition is straightforward: the future fleet may not need every platform to carry every capability. Instead, a manned command vessel could coordinate a distributed network of unmanned systems, multiplying the effect of its crew and extending the reach of the force.

For ST Engineering, Euronaval 2026 offers an opportunity to bring that proposition before European decision-makers. Whether the MRV ultimately attracts international customers will depend on operational requirements, procurement priorities and the ability to demonstrate the effectiveness of its integrated manned-unmanned architecture. But its European debut signals that the debate over the future of naval warfare is increasingly shifting from individual ships towards the coordinated combat systems they can command.

Photos by J. Roukoz