text: The second graph of figure 1.34 shows that 
  
  and G can approximate the  the sum of CD, 
  
  e 
  actual airplane CD through a large range of lift 
  coefficients. For airplanes of moderate aspect 
  ratio, this representation of the airplane total 
  drag is quite accurate in the ordinary range of 
  lift coefficients up to near 70 percent of CL,,. 
  the proced- 
  At high lift coefficients near CL-, 
  
  -mm 