45, 000-dwt bulk carriers and three 53, 000-dwt tankers for Panamanian affiliate companies of the Triton Shipping Co., ... A prototype hovercraft has been successfully built and tested at the Nagasaki shipyard of the Mitsubishi SB. ... It is to be completed in March for the Japan- Middle East service and will have a service speed of 16.5 knots. ... The shipping firms and other local bodies also operate at present about 25 chartered vessels which call at Israeli harbours at frequent intervals.