vide for hazardous duty pay when such work 

 is performed during sea state 5 or greater); 

 and work below the vehicle's waterline must 

 be performed by divers which is dangerous 

 as well as time consuming and cumbersome. 

 In some instances external equipment instal- 

 lation can be performed in a sheltered an- 

 chorage and the submersible subsequently 

 towed to the dive site. If the sea is rough a 

 great deal of damage can be done to the 

 instruments and their electrical connectors 

 by wave slap during the tow. On the positive 

 side, towing gets the submersible to the job. 



PERSONNEL AND SHORE 

 FACILITIES 



Predictably, the larger the submersible. 



the greater the number of and more special- 

 ized the personnel required for its mainte- 

 nance. In most instances the ship's crew 

 bears a hand in launch and retrieval, al- 

 though they may not be considered part of 

 the submersible crew. Hence, it is difficult to 

 precisely define the submersible's comple- 

 ment. When the submersible is brought 

 ashore for overhaul or repair, a similar iden- 

 tification problem occurs when individuals 

 with special talents are called in on a tempo- 

 rary or one-time basis. Consequently, the 

 personnel support listed (Table 12.5) is less 

 than minimal, but gives an appreciation of 

 the overall support required. 



The numbers and types of support person- 

 nel required ashore to take care of logistics, 

 planning, documentation, certification or 

 classification and a wide variety of other 



Fig, 1233 A lifting hook (already inserted into the lift tiousing) designed by Mr. 

 Edwin Link (NAVOCEANO) 



Fig, 12 34 The index' bar in the foreground serves to restrain JOHNSON SEA 

 LINK from rotating in the horizontal plane 



617 



