311/2026
Sea trials of surface and underwater drone in Rade de Brest
No longer in forceReceived 16 Oct 2026, 07:04 UTCArchived 19 Oct 2026, 14:05 UTC
Warning text
Positions open on the mapLang
Area: RADE DE BREST
SEA_TRIALS
OPERATION OF A SURFACE AND UNDERWATER DRONE
SW area of the roads around 48-19.70N 004-28.50W.
SE area of the roads around 48-19.30N 004-31.40W.
NAVIGATE WITH CAUTION IN THE VICINITY OF THESE AREAS AND MAINTAIN A SAFETY DISTANCE OF 500 METRES
Location map
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No longer in forceSea trials are being carried out in the Rade de Brest involving a surface drone and an underwater drone. Activity affects two local areas: SW area around 48-19.70N 004-28.50W and SE area around 48-19.30N 004-31.40W. Mariners are requested to navigate with caution and keep a safety distance of 500 metres from these zones.
Navigate with caution in the vicinity of the specified zones and maintain a safety distance of 500 metres.
- Type
- Survey operations · severity moderate
- Feed
- Survey operationsAll warnings of this kind on the map, or as an API feed.
- Location
- Rade de Brest
- Hazards
- surface drone, underwater drone, unmanned vehicle operations
- Keep clear
- 0.27 NMRESPECTER UNE DISTANCE DE SECURITE DE 500 METRES
Coast stations for this area
- RCCMRCC EtelFranceMMSI 00227500065 NM from the area
- RCCMRSC BrixhamUnited KingdomMMSI 002320013129 NM from the area
- RCCMRCC JobourgFrance130 NM from the area
- DSCDSC Station CorsenMRCC CorsenFranceMMSI 002275300VHF 27, MF 140range 140 NM13 NM from the area
- DSCDSC Station Pointe du RazMRCC CorsenFranceMMSI 002275300VHF 24range 24 NM20 NM from the area
- DSCDSC Station Stiff OuessantMRCC CorsenFranceMMSI 002275300VHF 33, MF 140range 140 NM24 NM from the area
- DSCDSC Station Batz IslandMRCC CorsenFranceMMSI 002275300VHF 27range 27 NM31 NM from the area
- DSCDSC Station Pen MarchMRCC EtelFranceMMSI 002275000VHF 28range 28 NM32 NM from the area
Worked out automatically from the warning text on 16 Oct 2026, 07:27 UTC. It can be wrong: the official warning text is the authority.