Odessa and Kyev Military Districts 1941

[researcher111]

I am trying to determine if at the begining
of the Great Patriotic War, which of the 20,21
and 45 SAD's Avia Polkas (Sqd's) operated
AR-2, R-10 and YAK-2 aircrafts , the last
may not seen any action on the Southern Fronts.

If you have any details , pse name the squadron
number eventually when the aircraft saw combat.