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

[gaunt1]

According to wiki, 550kg is the weight of the launcher with rockets. But still, it is a very powerful weapon, it fires 112kg rockets, which are stronger than a FAB-100 or a 250lb bomb.

Concerning PTAB. I highly doubt that it was dangerous to the plane that uses it. In reality, it was useless against tanks. However, against soft vehicles, it was devastating.