The SEAQUEST S is part of Naval Group's new range of surface drones, which spans from 6 m to over 50 m in length. The initial version of the SEAQUEST S appears to be designed primarily for ISR (Intelligence, Surveillance, and Reconnaissance) missions. It is built with a composite hull and constructed by the Couach shipyard in Gujan-Mestras, France, as part of a partnership with Sirehna, a subsidiary of Naval Group. Beyond autonomous systems, Sirehna brings expertise in hydrodynamics, fluid mechanics, experimental technologies, and design optimization to Naval Group's projects (see, for instance, image below picturing an FDI frigate).

The SEAQUEST S can be equipped with various sensors mounted on an integrated mast, including radar systems, optronic systems, and electronic warfare equipment. The collapsible mast allows it to be stored in the boat niches of frigates or corvettes. Indeed, the drone has been specifically designed for easy integration with naval vessels. It can be launched and recovered using existing davits typically used for semi-rigid inflatable boats.

The SEAQUEST S will likely incorporate Naval Group's STEERIS mission system, which provides varying levels of autonomous decision-making capabilities depending on client requirements and regulatory framework for autonomous operations. As of the latest information, the SEAQUEST S has progressed beyond the concept stage. It has already been constructed and is undergoing testing, with initial sea trials conducted in the Arcachon basin, in France. The drone has reportedly been moved to Toulon for further testing.

The SEAQUEST S represents Naval Group's entry into the small surface drone market, leveraging their expertise in naval defence and maritime technology to provide a versatile platform for modern naval operations. As soon as the SEQUEST S will mature, the company envisions to expand the product range to larger designs, already anticipated. Namely, SEAQUEST M would represent the medium-sized option within the family, with a length ranging from 15 to 50 m. This model is still in the concept stage and has not yet been realized.

The largest model in the SEAQUEST family is the SEAQUEST L, which is expected to measure over 50 m in length. Similar to the M model, the SEAQUEST L is still in the concept stage and has not yet been developed. Both the SEAQUEST M and L models are envisioned as autonomous or semi-autonomous vessels capable of operating independently, in groups, or alongside crewed combat ships.

These larger platforms are designed to be stealthy, have long endurance, and can potentially be heavily armed. Possible armaments and capabilities for the larger SEAQUEST models may include anti-ship missiles, surface-to-air systems, artillery, and anti-submarine warfare capabilities. For example, company renderings show them equipped with Terma SCANTER 6002 X-band surveillance radars, KNDS RAPIDFIRE 40 CTA or Leonardo 76/62 SOVRAPONTE naval turrets and up to 8 quadruple launchers for MBDA EXOCET anti-ship missiles. Additionally, they are expected to have the ability to deploy other drones. As we can deduct from configurations suggested by digital pictures, Naval Group envisions these larger USVs performing various roles such as providing a first line of coastal defence, conducting interdiction missions, contributing to carrier group protection, and carrying out raids on enemy targets.

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