Trailing Pipe System 750 for "City of Cardiff" and "City of Chichester" The ‘City of Cardiff’ and the ‘City of Chichester’, built at Appledore Shipbuilders in 1998, were delivered with trailing pipes with an internal diameter of 750 mm. The specification for the vessels included gantries and winches, Damen dredge pumps type BP7570LD, and Damen dredge valves and dredging instrumentation. See all deliveries