Comparison of Theory and Experiment on Ducted Propellers 



Table 3 :. 



Measured and Predicted Thrust Coefficients for 

 the Doak Ducted Propeller (19) 



Table 4 

 Performance of Four Ducted Propeller Systems According to Dyne (42) 



20 40 60 80 100 120 140 160 180 200 



Fig. 20 - Comparison of ducted 

 propeller thrust by Weissinger (43) 



1335 



