Design of the Instrument Housings 



The instrument housings for attachment at points along 

 the faired double-armor cable must fulfill a number of 

 requirements. They must: 



1. Be watertight; 



2. Be designed to house sensors of a variety of 

 sizes and shapes; 



3. Provide for necessary electronic equipment for 

 transmission; 



4. Provide watertight electrical connectors; 



5. Be compatible with the shipboard handling system; 



6. Provide for free-swiveling attachment of the 

 sections of cable fairing; 



7. Be of modular design, easily and rapidly connected 

 to or removed from the cable; 



8. Be of materials compatible with the steel cable 

 in sea water and resistant to chemical corrosion. 



It is vital that none of these stipulations adversely 

 affect the towing characteristics of the system. 



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