A crane barge is an offshore barge that has a sheer-legs crane or fully rotating crane. A sheer-legs crane can pick loads and luff but not swing. The sheer legs consist of an A-frame made up of two heavy, tubular members or trussed columns held back by heavy stays to the bow. A sheer-legs barge is maneuvered by deck engines, tugs, or mounted outboard engine propellers. The crane barge positions its stern at the side of the material barge, picks the load, and then moves as necessary to set the load in exact position. Modern torque-converter deck engines and propellers with variable pitch allow a high degree of accuracy in positioning - crane barge service.

In this occurrence, the tug and towed vessels did not exhibit the required lights and shapes, and no assessment was conducted as to their compliance with the Collision Regulations. There were no company procedures to ensure that masters were exhibiting the appropriate lights and shapes on their vessels. In this occurrence, contrary to accepted industry standards for towing, the towing arrangement employed synthetic fibre rope couplers, despite the exposed waters in the area, time of year, and expected weather conditions - Catalina Island Barge Service.

A partition in a ship that divides the interior space into various compartments in the walls of a vessel’s tanks. Clean - Term applied to the seawater used for ballast when it is not contaminated by any oil and is carried in clean tanks. Accommodation Ladder - A term applied to a portable flight of steps suspended over the side of a vessel from a gangway to a point near the water, providing any easy means of access from a small boat. Accommodation Ladders are usually supplied with two platforms, one at each end.

The crane barge positions its stern at the side of the material barge, picks the load, and then moves as necessary to set the load in exact position. Modern torque-converter deck engines and propellers with variable pitch allow a high degree of accuracy in positioning, on the order of mm. One of the advantages of a sheer-legs crane barge over a fully revolving derrick barge is that the load is always picked over the stern end, hence preventing list from the swing of the crane. For more information, please visit our site https://www.Pacificmaritimegroup.com/