Hadler and He eke r 



7 Density 



tjq Propeller efficiency in open water (TV/27TQn) 



k Linear ratio of full-scale to model propeller 



V Kinematic viscosity 



P Mass density 



o- Cavitation number ;,,.,-: , -j 



o-jj Local blade cavitation number based upon h 



Subscripts 



Model 

 Ship 



REFERENCES 



1. "Tests of Partially Submerged Propellers of the Sea-Sled Type," U.S. 

 Experimental Model Basin Report R-132, April 1919 



2. Reynolds, Osborne, "On the Effect of Immersion on Screw Propellers," 

 Transactions Institute of Naval Architecture, 1874 



3. Shiba, H., "Air-Drawing of Marine Propellers," Transportation Technical 

 Research Institute, Japan — undated 



4. Gutsche, F., "Einflub der Tauchung auf Schub und Wirkungsgrad von 

 Schiffspropellern," Schiffbauforschung, Vol. 6, No. 516, 1967, pp. 256-277 



5. Yegorov, I.T., and Sadovnikov, Y.M., "Effect of Instability on Hydrodynamic 

 Characteristics of a Propeller Cutting the Water Surface," Sudostroyenige 

 No. 1 (1961), pp. 15- 17 



6. Cheng, H.M., Hadler, J.B., Bernaertz, J., and Bader, J., "Analysis of 

 Right-Angle Drive Propulsion System," Diamond Jubilee SNAME, June 1968 



7. Hecker, R., Peck, J.G., and McDonald, N.A., "Experimental Performance 

 of TMB Supercavitating Propellers," DTMB Report 1432, Jan. 1964 



8. Venning, E., and Haberman, W.L., "Supercavitating Propeller Performance," 

 Trans. SNAME Vol. 70, 1962 



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