| 摘要 |
A navigable water craft having a first tool mounted on the bow area for removing pollutants. The tool may be a basket or scoop which is mounted to be raised and lowered such as through hydraulic rams. Additionally, the basket may be mounted to be rotated about a vertical axis from side-to-side of the craft. At the stern area is mounted a weed removal tool preferably in the form of a triangular rigid structure which, in use, is lowered to be dragged on the sea bed by a line wound on a winch mounted on the craft. A control station including a operator's seat is located between the stern and bow forwardly of the winch which preferably is located in an open recessed compartment. To protect the steering rudder of the craft, a barrier is positioned at the stern to prevent the weed removal tool from engaging the rudder during raising or lowering of the tool. A roller is mounted across the stern area on the hull to facilitate movement of the weed removal tool over the stern area during raising or lowering of the tool. The craft is driven through an engine which is cooled through a closed circuit cooling system including a coolant tank located at the bottom of the hull and forming a part thereof so as to be submerged into the water in heat exchange contact with the water during use of the craft.
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