I note there has been continuing discussion on whether the THS has top or bottom camber. As I said in a post earlier (which has been removed), I couldn't find any info on the profile and the drawing was a "best guess". Looking at the pics posted on the other thread, I am inclined to believe that the airfoil has a neutral camber.
A Flight Global cutaway of an A300 THS is the nearest I could find, and it appears to favour a slight positive top camber.
However, the general idea of how a high AoA would present itself to the THS was what I have attempted to portray, and in that respect I could have done a better job by showing the Angle of Incidence - which is:-
AoI = AoA + (-NU/+ND) or AoI = (61 - 13) = 48°
Castle Don;
The attitude as depicted represents the nominal longitudinal baseline of the aircraft and an approximate chord line for the main wing. The THS is trimmable, and its angle of attack is represented by AoI in the formula above.