Ali,

I'm a little late joining the discussion but since I originally flew my Gen 3 A-10 with P-70's and later switched to P-120 SE's (plus I flew the real A-10), I have a little experience with the questions you are asking. I originally installed the P-70's for the very reasons you mentioned and although the airplane flew OK, there was no "excess" power and would have been marginal in a single engine situation. Ironically, this was how the full scale flew and we always wished we had more power.

With the P-120's, there is plenty of power and I have had 2 or 3 single engine situations and the airplane flies just fine. The issue with power and the A-10 is not so much to go fast or lots of vertical (wouldn't look scale anyway), but it's to maintain speed during maneuvering and being able to pull up into a loop or immelman after a hard turn. The airplane is big, draggy and looses energy fast during high g maneuvers...that's when you need the extra power.

CG is not really a problem since you can put your batteries way up front in the nose and offset most of the weight in the rear. I did mount my UAT's under the cockpit but most everything else is between the cockpit and fuel tanks. I used 24oz Sullivan's for aux tanks and mounted them vertically just in front of the main tanks.

The whole mind set of flying the A-10 is a little different from your go-fast heavy metal jet fighter. It's close in, turning, jinking, straffing, slower speed maneuvering, at least if you want to fly it scale. Actually, I think it fits your flying style and you will enjoy it.

Craig