Sirius
French Navy MMCM uncrewed surface vessel; first deployed alongside UK's Ariadne aboard RFA Lyme Bay at Toulon, June 2026.
Last refreshed: 13 June 2026 · Appears in 1 active topic
Has the French Navy's Sirius drone and Britain's Ariadne actually cleared any mines together yet?
Timeline for Sirius
Embarked aboard RFA Lyme Bay at Toulon for first joint Anglo-French autonomous MCM integration at sea
Autonomous Systems: Land & Sea: Lyme Bay embarks France's mine-hunting drone- What is France's Sirius mine-hunting drone?
- Sirius is the French Navy's uncrewed mine-countermeasures surface vessel, built under the Anglo-French MMCM programme since 2015. It uses Thales SAMDIS sonar to detect mines and was integrated alongside the Royal Navy's Ariadne aboard RFA Lyme Bay at Toulon in early June 2026.Source: Naval News
- What happened at Toulon with France's mine-hunting drone in June 2026?
- RFA Lyme Bay called at Toulon in early June 2026 and embarked the French Navy's Sirius MMCM USV alongside the Royal Navy's Ariadne. It was the first time the two navies had integrated their autonomous mine-hunting systems aboard a single mothership in an operational deployment context.Source: Naval News
- Is the French Sirius drone the same as the satellite radio company?
- No. The French Navy's Sirius is a mine-countermeasures uncrewed surface vessel developed under the Anglo-French MMCM programme since 2015. It has no connection to Sirius XM Radio or any other entity of that name.
- How does the Anglo-French MMCM programme split work between the two navies?
- Both navies developed their own MMCM USV under the bilateral programme: France's Sirius and the UK's Ariadne. The Toulon integration in June 2026 tested whether systems from both nations could operate from a single mothership (RFA Lyme Bay), controlled by combined crews.Source: Naval News / USNI News
Background
Sirius is the French Navy's uncrewed mine-countermeasures surface vessel (MMCM USV), developed under the Anglo-French maritime mine-countermeasures programme that has run since 2015. In early June 2026, Sirius was embarked aboard RFA Lyme Bay at Toulon alongside the Royal Navy's RNMB Ariadne, marking the first operational integration of the two navies' autonomous mine-hunting systems aboard a single mothership. Commander Dan Herridge described the exercise as bringing together people, platforms and technology at short notice. The integration provides an export reference for the Anglo-French MMCM toolkit: a third-navy buyer can point to Toulon and request the combined package.
NOTE: This Sirius is the French Navy MMCM USV and is entirely distinct from other entities named Sirius (including Sirius XM, various spacecraft, and historical vessels). The French MMCM Sirius is part of the bilateral system developed jointly by France and the United Kingdom and built around Thales sonar technology, specifically the SAMDIS sonar. The programme was launched in 2015 with initial deliveries to both navies preceding the Toulon integration. Both Sirius and its British counterpart Ariadne were developed with the Anglo-French MMCM programme framework and Thales as the primary sensor supplier.
As of June 2026, the Sirius-Ariadne package has not conducted a live mine-hunting operation. Toulon proved the kit fits together aboard a single mothership; only a mine cleared under operational pressure will validate the full combined capability. The background mission context, which includes possible deployment in the Strait of Hormuz in connection with the Iran-conflict situation, remains operational business outside this topic.
