The Outrigger Buoy is a catenary moored Buoy solution. Pitch and roll stability is achieved by using inertial masses to increase the natural period to outwith the expected wave periods.
The internal masses are set at an appropriate pitch radius from the Buoy centreline to dampen the motions and increase the natural period. The inertial masses can also be used to stabilise the Buoy during load-out and carry upper mooring chain sections, giving greater flexibility for installation.
This arrangement allow great flexibility in the design and can be used in shallow water and aggressive environment.