







/ 



/ 





















X 













y^ 































1.5 



Speed in knots 



Figure 5 - Total Resistance of Model in Still Water 



CONCLUSION 



Within the limitations of the tests conducted, the model of the proposed oceanographic 

 research vessel rode easily, was reasonably dry and showed motions which were on the average 

 somewhat less than those observed on models of other types of vessels. 



REFERENCES 



1. "Oceanographic Instrumentation," Edited by John D. Isaacs and Columbus O.D. Iselin, 

 Division of Physical Sciences, National Academy of Sciences, National Research Council, 

 Publication No. 309 (Jun 1952). 



2. Castle, E.C., "USSE/Hydrographic Research Ship 'WITJAS,' " Intelligence Report 57-56, 

 U.S. Navy Forces Germany (9 Feb 1956). 



3. Minot, F., "Report on a Pre-Design Engineering Study of the Development of Superior 

 Ships for Oceanographic Research," Woods Hole Oceanographic Institution Reference No. 

 53-26 (May 1953). 



