text: The contribution of the fadage alone is 
  usually quite small depending on the location 
  of the resultant aerodynamic side force on the 
  fuselage. However, the effect of the wing- 
  fuselage-tail combination is significant since 
  the vertical placement of the wing on the fuse- 
  lage can greatly affect the stability of the com- 
  bination. A wing located at the mid wing 
  position will generally exhibit a dihedral effect 
  no different from that of the wing alone. A 
  low wing location on the fuselage may con- 
  tribute an effect equivalent to 3’ or 4’ of nega- 
  tive dihedral while a high wing location may 
  contribute a positive dihedral of 2’ or 3’. The 
  magnitude of dihedral effect contributed by 
  vertical position of the wing is large and may 
  necessitate a noticeable dihedral angle for the 
  low wing configuration. 
  
  The contribution of wccpback to dihedral ef- 
  fect is important because of the nature of the 
  contribution. 
  As shown in figure 4.28, the 
  swept wing in a sideslip has the wing into 
  wind operating with an effective decrease in 
  sweepback while 
  the wing out of the wind 
  an effective increase in 
  is operating with 
  sweepback. If the wing is at a positive lift 
  coefficient, the wing into 
  the wind has less 
  sweep and an increase in lift and the wing out 
  of the wind has more sweep and a decrease in 
  lift. 
  this manner the swept back wing 
  would contribute a positive dihedral effect and 
  the swept forward wing would contribute a 
  negative dihedral effect. 