RECOMMENDA TI ONS 



With the hydromechanical feasibility of the system 

 established, and much of the design of the towed elements 

 well in hand, it is reccnunended that development of a fully 

 operational system be undertaken. It is suggested that this 

 be acccmpliahed in two steps. 



The first step should consist of design^, procurement^, 

 and evaluation of a prototype system which would include 

 representative oceanographic instrumentation^, a full-depth 

 towing system^ and handling and storage systems. Selection 

 should be made of a data-transmission technique, with a 

 preliminary choice of sensors. Electronic components should 

 be limited to those sufficient to provide a comprehensive 

 test of the electronic system. Qnphasis should be placed 

 on the measurement of sound-velocity i, temperature,, and 

 pressure at this stage , since these appear to comprise the 

 areas of greatest interest. 



The second step should consist of procurement of a fully 

 operational system tailored to the needs of a particular 

 project. Practically all the material procured for the 

 prototype system should be usable in the operational system. 



Since the cable fairing represents a major cost of the 

 system, it is recommended that a 20-foot length of the 



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