Ilyushin Il-2 Shturmovik

The Ilyushin Il-2 Shturmovik is the most-produced military aircraft in history, with over 36,000 built during the Great Patriotic War. Conceived as a "flying tank", an armored ground-attack aircraft that could absorb punishment from small-arms fire and light flak while delivering devastating strikes against Axis ground forces, the Il-2 became the defining weapon of Soviet tactical aviation and a symbol of the Eastern Front itself.

Stalin famously declared the Il-2 as necessary to the Red Army "as bread and air," and production was treated with corresponding urgency. Entire factories were relocated east of the Urals during the catastrophic summer of 1941, rebuilt in open fields, and had Il-2s rolling off assembly lines within weeks. The aircraft's rugged construction, heavy armor shell, and powerful armament of cannons, bombs, and rockets made it lethally effective against German tanks, trucks, artillery, and troop concentrations.

The early single-seat Il-2 suffered appalling losses to Axis fighters due to the absence of a rear gunner, prompting the introduction of the two-seat Il-2M in 1942. Even with a rear-facing 12.7mm machine gun, the Shturmovik remained vulnerable at altitude, and its survival depended on fighter escort and low-level tactics. Despite loss rates that would have grounded any Western air force, the sheer volume of Il-2 production ensured that the VVS always had more to send into battle.

Sergei Ilyushin began work on the armored ground-attack concept in 1938, driven by the belief that a purpose-built aircraft could survive the intense ground fire that destroyed conventional bombers during close-support missions. His key innovation was the armored shell, not bolted-on armor plates, but a load-bearing structure of steel plating 5-12mm thick that formed part of the aircraft's airframe around the engine, fuel tanks, cockpit, and radiator. This shell weighed approximately 1,540 pounds, yet by making it structural, Ilyushin avoided the weight penalty of simply adding armor to a conventional airframe.

The prototype BSh-2 (later TsKB-55) first flew on October 2, 1939, as a two-seat aircraft. However, the Soviet Air Force demanded higher performance, and Ilyushin reluctantly removed the rear gunner's position to reduce weight, creating a single-seat version. This decision would prove catastrophic in combat. The single-seat Il-2 entered service just days before the German invasion on June 22, 1941, and immediately demonstrated both its devastating ground-attack capability and its vulnerability to rear-hemisphere fighter attacks.

Production was thrown into chaos by the German advance. The massive Voronezh factory was evacuated to Kuibyshev (modern Samara) in October 1941, with workers and machinery loaded onto trains even as German forces approached. In an extraordinary feat of wartime industrial mobilization, production resumed within six weeks. Stalin personally intervened to prioritize Il-2 output above nearly all other military production, sending a famous telegram to factory directors warning that the Red Army needed Il-2s "like bread, like air" and threatening consequences for any shortfall.

The critical Il-2M two-seat variant entered production in late 1942, restoring the rear gunner and dramatically improving survivability. Later improvements included the AM-38F engine with increased power, 23mm VYa cannons replacing the earlier 20mm ShVAK weapons, and anti-tank modifications carrying twin 37mm NS-37 cannons. By 1943, the Il-2 production line at Kuibyshev was the largest aircraft factory in the world, turning out over 40 aircraft per day at peak output.