Great discussion. Like I said though, Im posting in installments (time constraints & such), so I'll continue with some explanations, and then join in on discussion and questions.
Originally posted by Mace2004
A pitchback is a high-e turn (as Murdr describes it's just part of a loop) and a wingover is either a low e maneuver or high-e used specifically for position advantage. For most prop-driven planes a pure pitch-back usually degrades to something similar to a wingover because they have insufficient power to sustain corner velocity in the vertical for long so have to lower their nose.
That is an excelent preface including the point that our AH prop driven planes make it difficult to employ this type of turn in the way you would in a modern fighter.
In the context of AH you will often likely see a pitchback after a low speed merge. A comment I often see in post duel discussions is that "I didnt have the speed to do another immelman". Many players faced with that feel they only have the choice of 'going under' or turning in the horizontal at that point. Here is another option. Start your turn in the vertical, and then transition that turn into the horizontal. What you are doing is capping the amount of speed you will lose during the reversal while still gaining some of the positional advantages of turning in the vertical. "Well couldn't you do the same thing with a chandelle?" one might ask. In this low E situation, I'd say no, not nearly as effectively.
If you exit a low speed merge and start your turn intending to pitchback, guess what? All your opponent sees is that you are enterning an immelman. Your opponent now has a difficult choice to make if they feel they cant match an immelman. In fact though, you're only bluffing an immelman.
Getting back to the concept of using this to cap your speed loss while still gaining altitude...Let's set a scenerio: You and your opponent merge after a 2nd immelman. You are both slow, but can at least stall 'over the top'. Your opponent does that. You start your turn into the vertical, but break out of that turn with enough reserve to finish comming 180 without stalling. Now your opponent, while at a higher altitude, is inverted nose down in a stall. You are probably already just above where your opponent can recover level flight. Only question at this point is will the separation allow your opponent to recover level flight,
and pull nose up to you before the merge? If the answer is no, the fight is yours to lose.
So in post merge turns a pitchback:
Can beat a stalled over immelman.
Will lose to a clean immelman.
Will counter a split-s* (via positioning, see
this film study threadCan be countered by a nose low flat turn. (via rate of turn)
Can gain angle on a neutrual or nose high flat turn.
*this is where you may see it in a higher E situation.
end of installment