On the Eastern Front, the Nazis used thousands of Russky biplanes for target practice.
The girls of the "Night Witches" applied Stalin's best use of the Russky biplane.
BTW: It was Alexandr Seversky whose design-skills were dearly missed by the Bolshevik Revolution in designing the Allies' P-47.
Lucky us! :)
You miss my point. Biplanes weren’t a backbone of Soviet air force during WWII for sure, thus they had a SMALL number of biplane fighters (i-153). These planes were a rollback from an i-16 known as a rata or mosca. An i-16 was a pretty revolutionary plane for earlier 1930s (a fast agile monoplane featuring retractable landing gear). An i-153 biplane came in 1934 as a less revolutionary alternative but the history proved that even an i-16 turned absolete by late 1930s with a Bf-109 in the skies.
The point is the Soviets has stuck with a technology from the early 1930s with Stalin’s purges.
U-2 biplane in Night Witches’ use weren’t even a combat planes.
Obviously, you are not familiar with the Yak-3 and its successor, the Yak-9. The LaGG-5 was also a good fighter, though its predecessors, the LaGG-1 and LaGG-3 got creamed. The Soviets build some amazing planes. Their issues were with pilot training, not their aircraft.
BTW: Germans and Italians were also using biplanes. The Germans used the Henschel Hs 123 until 1944 as dive bomber, and the Italians used the Fiat CR-32 and CR-42 fighters. The Brits still operated the Gloster Gladiator biplane fighter at the beginning of the war and operated the Swordfish and Albacore biplane torpedo bombers for the entire war.