Yak-9T - incredible firepower (or maybe incredible tank's lack of armor?)

[gaunt1]

I think it depends on your definition of "useless". If you mean physically detroying tanks then I would agree.
But I'm sure air attacks were disruptive and damaging to the enemy regardless of whether the tank itself was actually "destroyed".
I think the biggest "effect" though was simply to morale and logistics by forcing the enemy to adapt their movements to allow for potential air attack. Even if the attack never eventuates, or inficts insignificant damage when it does, having to allow for it still burns up vital resources, slows down movement, and affects morale.

This is the truth. Contrary to popular belief, IL-2 was almost completely useless against tanks, it couldnt really do anything against them. However, it was a TERROR against troops, convoys, and light vehicles, and inflicted huge losses to these units. German tankers didnt fear Sturmoviks. Infantry did!

I still think that the only aircrafts that were capable of destroying tanks effectively were the Ju-87G and the Hurricane IID/IV (forgot this one earlier). 20,23 and 30mm guns were unable to even slightly damage them. In theory, the Hs-129B3 was also useful, but it was a poor weapon system in reality.

http://operationbarbarossa.net/Myth-...hbusters4.html