Single buoy mooring - Wikipedia
A Single buoy mooring (SrM) (also known as single-point ... mooring (CALM), which can be capable of handling very large crude carriers. This configuration uses six or eight heavy anchor chains placed radially around the buoy, of a tonnage to suit the designed load, each about 350 metres (1,150 ft) long, and attached to an anchor or pile to provide the required holding power. The anchor chains ...