The MOBILIS JET 9000 located in Basse Bréfort in Normandy has been specially designed to face very powerful currents (up to 5 knots).
Indeed, we can see on the video that the buoy remains stable, vertical, even subjected to extreme forces. Its performance exceeds the generally known capacities of beacon buoys. Indeed, it resists extreme forces while remaining stable and visible to users.
This buoy has been developed to, if nature requires it, to be fully submerged before returning to the surface when sea conditions are more favorable.