Propeller -Induced Appendage Forces 



4.00 



2,00 



1.00 

 0.80 

 O.oO 



^ 0.40 



2 0.20 



^ 0.10 

 o 



^ 0.08 



« 0.06 



0.04 



0.02 



0.01 



A A Basic Thickness Blades 

 • O Double Thickness Blades 



0.25 0.50 



Spacing/Propeller Dieuneter 



Fig. 14 - The effects of blade thickness and appendage 

 asymmetry on the axial forces associated with a four- 

 bladed propeller 



0.75 



185 



