153 



Example (l) 

 Suppose 



CHAPTER XVII. 



PROPELLER PERFORMANCE CURVES. 



Diameter of a Two-bladed Propeller. 

 H = 360, 



1 1 oo, 



V = 80, 



d = 10,000 



360 



= 162 inches. 



53-5 x iioo 2 x 80 

 Example (2). Diameter of a Four-bladed Propeller. 

 Suppose H = 360, 



w = iioo, 

 V = 80, 



4 /~~ 2gQ 



= IO,OOOJ- 



\iiix iio 



135 inches. 



Example 



Density Air. 

 Suppose 



- 

 ioo 2 x 80 



(3). Propeller Performance Curves in Standard 



V = 80, 



*= 135, 

 = iioo, 

 H = 360, 



80 



IIOO x 135 



-000538. 



