TABLE 6 - PRINCIPAL CHARACTERISTICS OF FOUR 

 RAKED PROPELLERS ON MODEL 5224-2 



Propeller 



4487 



4486 



4488 



4489 



Number of Blades 



7 



5 



3 



3 



Propeller Diameter 

 Hull Diameter 



0.743 



0.743 



0.743 



0.743 



Expanded Area Ratio 



0.707 



0.707 



0.707 



0.709 



Blade Thickness Fraction 



0.036 



0.047 



0.077 



0.083 



P/ at 0.7R 



X 



Axial Position, -— - 

 i-i 



1.4975 



1.503 



1.519 



1.498 



0.8637 



0.9652 



0.9678 



0.9703 



Skew, Deg 



32 



43 



72 



120 



*Here X is defined as the longitudinal distance from the bow to a 

 propeller reference plane passing through the midchord of the blade 

 root section. 



52 



