text: N=yawing moment, ft.-lbs; 
  positive to the right 
  q= dynamic pressure, psf 
  S=wing area, sq. ft. 
  b=wing span, ft. 
  
  C,=yawing moment coefficient, positive 
  
  to the right 
  
  The yawing moment coefficient, C,, is based on 
  the wing dimensions $ and 6 as the wing is the 
  characteristic surface of the airplane. 