The Havyard 844 LX Pacific Dove photographed in Brazilian waters in February 2017 by Jan Plug.

Prior to the latest oil price crash Swire Pacific who are an enormous shipping company, maybe rivalling Maersk Supply in numbers of craft out there, ordered eight biggish anchor-handlers from a Singapore shipyard. They are distinguished by having been fitted with a plethora of anchor-handling equipment on the deck to assist with its various activities. From the table below it can be seen that there is a lot of wire storage space and a medium availability of horsepower, and from this we can assume that the ships are built to move oil rigs. If you are wondering why very high horsepower ships have been developed at all, it is because they can be used for specific activities such as towing ploughs which are for trenching the seabed, and for locating anchors by being able to tension up a mooring using the ship's power alone.