316/2026
Sea trials of surface and underwater drones in Rade de Brest on 20 Oct
No longer in forceReceived 19 Oct 2026, 14:04 UTCArchived 20 Oct 2026, 16:05 UTC
Warning text
Positions open on the mapLang
Area: RADE DE BREST
Valid from 20 Oct 2026 06:00 UTC to 20 Oct 2026 16:00 UTC
SEA_TRIALS
OPERATION OF A SURFACE AND UNDERWATER DRONE
Area within a radius of 0.5 NM around 48-19.70N 004-28.50W.
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 will take place in the Rade de Brest on 20 Oct 2026. Operations of a surface drone and an underwater drone will occur within a 0.5 NM radius of the given position. Mariners should navigate with caution and maintain a safety distance of 500 metres.
Navigate with caution in the vicinity 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
- Validity
- From 20 Oct 2026, 06:00 UTC
Until 20 Oct 2026, 16:00 UTCValid from 20 Oct 2026 06:00 UTC to 20 Oct 2026 16:00 UTC - Activity periods
- 20 Oct 2026, 06:00 UTC - 20 Oct 2026, 16:00 UTC (sea trials of surface and underwater drone)
- Hazards
- surface drone operations, underwater drone operations, restricted trial area (0.5 NM radius)
- 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 19 Oct 2026, 14:47 UTC. It can be wrong: the official warning text is the authority.