Pote ntial Users and Estimated Number of Units Which They May 

 Require : 



a. U. S. Navy (basic research, applied research, and hydro- 

 graphic-oceanographic survey ships) - 20 to 40. 



b. U. S. Coast and Geodetic Survey - 15 to 30. 



c. Certain activities within scientific community - 10 to 20. 



d. U. S. Coast Guard - 10 to 20. 



e. U. S. Navy (Bureau of Ships) - Unknown. 



f. Bureau of Commercial Fisheries - 10 to 30. 



Total: 65 to 140. 



Recommendations Where Instrument Should Be Researched and 

 Developed: 



U. S. Industry. 



Relative Importance to U. S. National Oceanographic Program: 



Individual instrument/equipment priority 6. 



I.g. SURFACE SHIP AND SUBMARINE GRAVITY METER 



FOR SURVEY USE 



Primary Use: 



This is a precision instrument designed for survey use. It will 

 permit the continuous measurement of gravity profiles from surface 

 ships and submarines. 



Specifications and Requirements : 



a. This is primarily an imderway instrument and should per- 

 form with accuracy and reliability for ship's speeds between and 

 15 knots. 



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