It seems I need to add some clarification here.
The Term I invented - E-Liability - was part of attempt to make a joke combining the Law of Energy conservation (Em=cte - Em being the mechanical energy of a closed system - ie : every well defined system) and the fact that our beloved Spit in IL2 had the right to bypass it (the dive climb maneuver for example).
SO sorry it was pure un-intentional trolling
Specific excess power (SPow) is what come close to this - Thx IK.
Just remind that Em = cte is not a true representation of what is really happening. The plane is in fact trading energy with the surrounding air at an huge rate so the the neat amount would be most of the time negative in a dogfight.
For example, flying level if you attempt a climb you'll go higher than if you had started turning just before. An other example is the yoyo move.
A good equation IMHO that give a clear picture of this is the low kinetic energy that stat that the time derivation of the kinetic energy equate the sum of consumed power of a system
dEc/dt = Sum of (P)
With P being the power of the engine, the power consumed by the drag etc... depending only of the speed and the turn rate.
BoT :
Following IK remark : 0.6G is a huge diff.
But doesn't it look right if you compare the wing area ?
However it would be only an advantage in a flat turn. Slow speed turn with vertical added would be problematic for the Spit pilot giving the wing being prone to dyn stall (lower aspect ratio + thiner + elliptical planform) and the ctrl sensitivity in pitch that you alrdy hve demonstrated.
But do we hve similar curves for the Hurri ?