Fleet angle system and method of level winding

摘要

A pivoted frame assembly is guided back and forth across a winch drum by an interconnected double diamond lead screw. Sheaves journaled on a frame assembly feed the cable or a hydrophone array in a manner so as not to create crushing stresses on the cable or side load forces during deployment and retrieval. Because of the physical disposition of the framework and sheaves with respect to the winch drum and their mechanical coaction with other related structural elements, the fleeting sheave is closer than contemporary units so that the overall structure is more compact.