Fig, 7 19 A variety of penetrators on BEN FRANKLIN (NAVOCEANO) 



Fig- 7 20 Piccard penetrators witti Marsh Marine (Vector) connectors and specially- 

 designed mam power penetrators on BEN FRANKLIN (NAVOCEANO) 



instrument. It is these connect/disconnect 

 points which cause most of the trouble. 



The DOT program icientified some 30 dif- 

 ferent penetrator types used on underwater 

 vehicles and, based on failure modes and 

 effects analyses, compiled a list of 22 design 

 considerations applying to electrical penetra- 

 tors. Such details are beyond the scope of 

 this discussion, but from a historical and 

 state-of-the-art point of view four design fac- 



COPPER ROD 



\ CONICAL PLEXIGLASS HIGH PRESSURE SEAL 

 PLEXIGLASS HIGH PRESSURE SEAL 



STAINLESS STEEL CLAMP BRAZED X)INT 



CHIMP CONNECTOR 

 NEGPHENE BOOT 



95 MM' CABLE 



RUBBER TAPE FROM 

 FIELD SPLICING KIT 

 RUBBER BOOT {SHRINK TUBING) 

 FROM FIELD SPLICING KIT 

 BRASS CONNECTOR 

 (SCREW CON^eCTED 

 TO SILVER FEMALE! 

 SILVER FEMALE 

 CONNECTOR SOCKET 



BRONZE MACHINED COLLAR 

 NECPRENE MOLDED COVER 

 STEEL PENETRATOR SLEEVE 



NEOPflENE GASKET FOR LOW PRESSURE SEAL 



Fig. 7.21 Electrical penetrator (95 mm) on BEN FRANKLIN 



Fig 7 22 A molded gland atop a 3 5- kHz transducer. (NAVOCEANO) 



343 



