Among the utility floating equipment stationed at the Island are vari- 

 ous work barges equipped with cranes and winches and propelled by one or 

 more diesel outboard "sea mules. " Personnel transport craft and out- 

 board work boats are also available (Table 1), Several activity vessels 

 are based at the Long Beach Naval Station and provide range patrol and 

 surveillance, recovery service, and other specialized functions on all 

 NUC ranges (Table 2). 



The YFU-53 is a modified LCU with a 15- by 32-ft well through the 

 main deck equipped to handle different tasks. One task was the conduct- 

 ing of underwater test launchings from a submersible torpedo tube. The 

 tube was lowered through the well to the ocean floor where the launching 

 took place. Deep water search and recovery operations have also been 

 conducted. A frame fitted with a mercury vapor lamp, a television cam- 

 era, and recovery snare is lowered through the well to search the ocean 

 floor. Deck compartments house electronic equipment and data recorders. 

 Other modifications included a 6-ton capacity traveling bridge crane, four 

 hoisting winches, and a four-point self- mooring capability. 



The Acoustics Research Vessel, YFU-44, is specially equipped for 

 imderwater research. Power generators and special compartments were 

 added to house electronic equipment. An 8- by 36-ft well, cut through the 

 center of the main deck, permits the ship instrumentation platform which 

 carries selected imderwater equipment to be lowered to depths of 600 ft. 

 The vessel having fore and aft winches with Danforth anchors has a two- 

 point self-mooring capability. 



All of the facilities described are still operational, but as the Naval 

 Undersea Research and Development Center's mission indicated above 

 there is a new and additional interest. Whereas the early emphasis at 

 San Clemente Island was on research, test, and initial evalviation of ord- 

 nance, the present concern with ocean engineering and all its related tech- 

 nologies in the deep ocean environment represents a more diversified 

 challenge. 



The Ocean Engineering Range is expanding in order to provide a test 

 range for experiments on ocean engineering components and systems for 

 such projects as the Deep Submergence Systems Project (DSSP) and the 

 Deep Ocean Technology (DOT) Project. 



DSSP requested NUC to establish and operate additional ocean engi- 

 neering test capabilities as part of the Ocean Engineering Range. These 

 capabilities are designed to support testing required by the various sys- 

 tems of the DSSP Submersible Vehicles, Man-In-The-Sea (MITS), Large 

 Object Salvage System (LOSS), now under the Naval Ships Systems 

 Command, and Sensors and Controls o 



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