This is nowhere near complicated enough! How will the original question (or indeed answer)vary for:
a) Trimmable tailplane with elevator e.g. jet airliner
b) Fixed tailplane with elevator with trim tab e.g. Jet Provost
c) All-flying tail e.g. Gnat, Lightning (sigh)
As an aside, am I the only idiot who used to loop and barrel-roll a JP using the trim wheels?
Cheers
TP