Potential E (altitude) and Kinetic E (Speed). What you have to watch for is turn radius at high speed if you are going from low to high at high speed. In Real Life (Not sure it is modeled here) the aircraft pulling up has a turn radius which is naturally bigger...because you are fighting G. The downward turning aircraft has the G helping him. So essentially a constant 4G indicated turn in the pure vertical is shaped like an egg....Bigger on the bottom (fighting G), and smaller up top (G helping...). BUT...if you get a good lead turn in as the bottom aircraft, and meet your opponent in the near vertical (he is going down, you are going up...you essentially reversed the advantage). If he denies you the lead turn, well...it becomes a fight what you see:)
The physics of flight are modeled. The energy egg is easily seen if you turn trails on in the film viewer.
I put that together probably 8-9 years ago. Just read through it for the first time in years. I'm glad it's still in use and potentially helpful 
Maybe eventually. I'd have to gear up with a good machine first.
Get a machine for VR, Aces High is amazing in VR. There's a propeller model update and we even have green trails for the player aircraft in the film viewer now.
