Emergency ascent is based on 

 retrieving as much of tine in-situ plant 

 as possible. The winch would also 

 be used for ascent. However, if the 

 batteries fail or the winch becomes 

 inoperative, the free ascent method, 

 described earlier, would be made. In 

 the preliminary design, the power 

 module would be jettisoned for free 

 ascent, leaving the load module and 

 base in situ. The ascent rate of the 

 power module must be controlled to 

 avoid having the module jump out of 

 water when it surfaces. Figure A-8 

 illustrates the emergency ascent 

 method selected. 



The major milestone chart 

 and budget cost estimates for the 

 100-kw in-situ power systems are 

 shown in Figure A-9. The milestone 

 schedule would be the same for both 

 depths of 600 and 6,000 feet. The 

 costs of transportation deployment 

 and common base for the power and 

 load modules are not included in 

 the estimates. 



Extensive engineering effort is anticipated for solving heat transfer 

 problems and for protecting the hull surfaces against the environment. Some 

 testing may be necessary to evaluate the heat transfer characteristics of selected 

 protective coatings. 



Figure A-8. Emergency ascent. 



30-kw Diesel Electric Surface Power System 



A standard commercial 30-kw diesel electric power plant would be 

 installed in a surface hull similar to the General Dynamic monster buoy. The 

 hull (buoy) — 41 feet in diameter and 7-1/2 feet high overall — would be equip- 

 ped with a 20-foot-high, 5-foot-diameter mast and stack. The buoy would 

 have a double hull, the outer hull being circular and the inner hull being square. 

 An egg-crate structure between the inner and outer hulls would serve to stiffen 

 the hulls and provide a baffled fuel storage area with a minimum of fuel agi- 

 tation. Four vertical hawsepipes would traverse the fuel storage area, allowing 

 passage of the mooring lines. 



104 



