Fig. 10 
Deformation of the turns due to wind blowing in or against the direction of the 
line of flight. The spacing s does not change. 
will be the desired flight line spacing. The 
computation to be carried out during this 
iterative process is simplified by rules of ap 
proximation*) for over or under correction 
when performing the interpolation. When a 
practical computing sheet is used, the entire 
computation process can be completed in 2 or 
3 minutes. Moreover, the values obtained in 
this manner are usually applicable to several 
turns; at least, they may be used as valuable 
approximations for new computations. 
Assuming the case of wind wind incidence 
from any possible direction, the wind may be