The MV Flatholm from Coastline Surveys Limited was used as the work support vessel throughout the 2005 field sessions. The Flatholm is a converted harbour tug, built in Japan in 1976. The vessel has a length over all of 23.3m, a breadth over all of 8.0m and a 2.6m draft.

The Wessex Archaeology Remotely Operated Vehicle and diving operations were directed from a control room, permanently installed on deck aft of the superstructure.