6.4.2 Tail Incidence
Discussing about tail airfoil, it is advantageous to mention, too, about incidence of tail. As in the case of the main wing, the horizontal tail (of course, not for the vertical tail) can be designed to align at a specific incidence angle.
The incidence angle of the horizontal tail should be set such that during the cruise the lift required from the tail to make the airplane pitching moment zero, is produced without elevator deflection.