A system for establishing a towing connection between a marine casualty and a salvage vessel, characterized in that it comprises a loop- forming arrangement which is held distended in the horizontal plane and which is connected to a towline, the towline being releasably connected to a distending system by a device whereby the connection is released when the distending system loses its distending effect, the loop-forming arrangement defining an open and unobstructed space being adapted to be brought in, over and around a strong structural member on the casualty by a helicopter or the like.
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