Not to nitpick but....

In regards to the Yak-9T, the T stands for Tyazhelowooruzhenny or "heavily armed". It has nothing to do with "Tank".
True, the NS-37 37mm and the NS-45 45mm are the best anti-tank cannons that I can think of, but even those guns can only penetrate rear, deck/top, and side armor depending on the tank.
And FYI the majority of Yak-9T's, Yak-9K's, and Yak-9UT's were used mostly in an air to air role, and only marginally in an air to ground role.
The rest is urban legend class myth
