these meters. Table VI- 1 also summarizes the characteristics of 

 some of the available meters insofar as such characteristics are 

 known. 



Table VI- 1. Comparison of Prices, Depth Limits, and Speed 

 Ranges of Various Current Instruments 



Meter 



Approx. 

 Price 



Depth 

 limit 

 (feet) 



Speed 



Range 



(knots) 



Min. Max. 



Roberts Radio Meter * $ 850 



300 



0.3 



0.06 



0.1 



0.05 



7.0 



10.0 



4.0 



3.5 



* Instrument owned by the Hydrographic Office 



# Expected price after development 



The greater fund of experience with the Roberts Meter in comparison 

 with the other meters and the large variety of available accessories for 

 it seem to make the Roberts Meter most suitable to the Hydrographic 

 Office of all the meters investigated. However, considerable manhours 



VI- 5 



