156 AEROPLANE PERFORMANCE CALCULATIONS 



Example (2). This Example shows the Second Method.- 

 Suppose W = 5700, 

 S = 695, 



* L ma* = "590, 



196 x 5700 _ 



a = --. - = 2725, 

 695 x -590 



The values of P and V are plotted on page 157 and the curve 

 of small dots is drawn through them, the opportunity being taken 

 to fair the curve slightly where the points are irregular. For 

 most of its length this curve is indistinguishable from the full 

 line curve. 



