TABLE 11 - COMPUTED* AND MEASURED VALUES OF THRUST DEDUCTION 



FRACTION FOR PROPELLERS 4486, 4487, 4488, AND 4489 ON 



DTNSRDC MODEL 5224-2 



Propeller 



Experiment 



(l-t^Theory 



'^Body 



Appendages 



4486 

 4487 

 4488 

 4489 



0.909 

 0.891 

 0.936 

 0.964 



0.949 

 0.941 

 0.966 

 0.974 



0.039 

 0.045 

 0.027 

 0.021 



0.012 

 0.014 

 0.007 

 0.005 



*Without corrections for increased frictional resistance 



59 



