A bit more:-
The 1975, US-built James Surveyor catamaran tug, built as the L.E. STEWART, later renamed JARAMAC 66 with dimensions of 55m. 23 m. and a 5.5m. draught, had 3,200BHP and 72 tonne bollard pull. The design took several years for McDermott Shipyard to produce and appears to have been their only catamaran design. Also designed for ice class, with a triple drum winch, bow thrusters and DP, the vessel perhaps was designed for everything but could not do any one thing particularly well. She now operates in West Africa under the name of Coeus.