In 1936 the competition program was declared, had called "Ivanov" (It was the telegraph nickname of Stalin)
Indeed, thanks...so, it says something about importance of this aicraft, you didn't use Stalin name in vain! It's slightly out of topic, but Suvorov has written a lot about it , in the context of Soviet air doctrine of the first devastating blow, of attacking first in order to destroy enemy air force while still on the ground. Actually, it happened just the opposite to the Soviets, but..@Ivan Culjak Stalin's telegraph nickname. First entry in this thread.