I reach the opposite conclusion from your article. It is clear that a single GAU-8 shell to undamaged frontal armor will not cause serious damage. Everything e

I reach the opposite conclusion from your article. It is clear that a single GAU-8 shell to undamaged frontal armor will not cause serious damage. Everything else points to the A-10 being highly effective. Since we don't get to fire at the T-90 for testing purposes, note that smaller and slower shells from the Bradley have taken out the M1A2 Abrams. Nothing says you can't hit the same location 100 times. For increased accuracy, improving the ammunition is possible. A few years back, DARPA got 50 caliber (12.7 mm) bullets to have active steering. If we can do that in 50 caliber, 30 mm should be easy. As for the Hellfire, the A-10 has that beat too, with the Maverick. It goes 3 times as far, carrying 7 to 15 times as much explosive. The A-10 can also carry Paveway, JSOW, and various other precision bombs. I don't think the psychological effect should be ignored either. Having an A-10 visibly loitering over the battlefield will have an effect on the morale and behavior of both sites of the conflict.