Lloyd's To Class Two Large Crane Barges To Be Built By Mitsui
Two large crane barges are to be built to Lloyd's Register class by Mitsui Engineering and Shipbuilding Co. for the Heerema Group. A design appraisal will be carried out by the Society's Offshore Services Group, and the barges will be built under survey at the Mitsui Shipyard.
The barges will be semisubmersible units f o r worldwide service and suitable for operations in ambient temperatures down to minus 20°C. Each unit is of the catamaran type with working decks supported by stability columns. Two cranes will be fitted on each barge — 3,000 and 2,000-short-tons lifting capacity. The barges are designed to carry 8,000 tons of payload on deck and are provided with 1,600- hp propulsion units which, added to the 1,500 hp of two assisting tugs (for anchor running, etc.), will give the barges an estimated speed of 10 knots.
Principal dimensions are 450- foot length, 282-foot breadth and 136-foot height. Both barges can accommodate 350 crew, and the first will be operational in the North Sea area in September 1978 and the second one in February 1979.