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Ascends and descends in heli- 

 coidal pattern; recently 

 outfitted with new propulsion 

 system prior to moving from 

 California to East Coast of U. S. 

 for work with Naval Sound 

 Laboratory 



Being designed 



Under construction 



Submarine for oceanographic 

 research at great depths 



Put into service in 1967; has 

 120 cells outboard; built in 

 Santa Barbara 



Sub can be carried piggy back 

 by a nuclear (mother) sub or 

 by Navy auxiliary ship rescue 

 vessel, DSRK-2 is expected to 

 be almost a carbon copy of 

 DSRV-1 now under construc- 

 tion; definite decision on 

 DSRV-2 design expected early 

 in 1968. 



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