Table 4 

 POWER REQUIREMENTS 



Horsepower 



Cumulative 



total 

 horsepower 



Mining Vehicle 



Product disposition 

 Vehicle movement 



Control habitat 

 Auxiliary services 

 Vehicle movement 



Hydraulic Hoist 



Pump system 

 Floating platform 



Loading facilities 



Auxiliary services 



Positioning 



Support submersible 

 Transport 4 barges 

 4 tugs 



Onshore reduction plant 



250 

 750 



9,000 

 5,500 



24,800 

 30,300 



state-of-the-art pipeline design practices. Stage pumping with the pumps located in buoyancy chambers 

 at intervals has been proposed. 



—The floating surface station. IdeaUy, this station will contain the power generator plant, maintenance 

 plant (including a hoist of sufficient capacity to install and remove the pipeline), living quarters, deep 

 submersible station, storage capacity for fuel and possibly for at least one barge load of ore. The station 

 should have facilities to transfer ore into the barges from the production line and dynamic positioning to 

 maintain station directly over the submerged habitat at all times. It should be designed to work in all 

 weather and maintain stability. A spar buoy type hull to support the required facilities, constructed of 

 reinforced concrete, is proposed but detailed design studies have not been carried out. 



—The deep submergence personnel transport. This vehicle would be used to transport crews between the 

 habitat and the surface in the manner of the Navy Deep Submersible Rescue Vessel. It would also be 

 required to carry out routine maintenance on the submerged equipment. Of all the components of the 

 mining system this would be the most sophisticated, but it is anticipated that the transport will become 

 available as fall out from other development programs. 



—Surface transportation. Because of lower cost compared with self propelled cargo vessels, and because 

 superior maneuverability, a tug and barge combination was chosen to transport the ore from the mine 

 site to shore. Self-unloading barges of 20,000-ton capacity are now in regular use, and speeds of eight 

 knots may be maintained in the open sea with tugs of 2,000 horsepower. To maintain an annual 



Vll-183 



