TABLE 4 - MODEL PROPELLER GEOMETRY* 



Design Parameters 



Propeller Number 



4717C 



4738A 



Z 

 Diameter, in. (cm) 

 Pitch,** in. (cm) 

 P/D** 

 EAR 

 Chord length,** in. (cm) 



4 

 16.000 (40.64) 

 22.656 (57.546) 



1.416 



0.495 



4.560 (11.582) 



6 

 16.000 (40.64) 

 22.560 (57.302) 



1.410 



0.492 



3.017 (7.663) 



*Interpreted from drafting room offsets. 

 **At 0.7R. 



TABLE 5 - SCOPE OF EXPERIMENTS 



Propeller Number 



4717B 



4717C 



4738A 



a 



v* 



J 



a 



V* 



J 



a 



v* 



J 









6.0 



15.0 



0.45-1.3 



6.0 



15.0 



0.45-1.3 



3.0 



30.0 



0.5-1.2 



3.0 



30.0 



0.5-1.2 



3.0 



30.0 



0.5-1.2 



1.5 



30.0 



0.5-1.2 



1.5 



30.0 



0.5-1.2 



1.5 



30.0 



0.5-1.2 



0.75 



30.0 



0.5-1.2 



0.75 



30.0 



0.5-1.2 



0.75 

 0.5 



30.0 

 30.0 



0.5-1.2 

 0.6-1.2 



0.3 



35.0 



0.7-1.2 



0.34 



35.0 



0.7-1.2 



0.34 



35.0 



0.7-1.2 





*In feet \ 



)er second 











73 



