Model Variants (Including Prototypes)
TsKB-55 - Two Seat Prototype Model (sometimes designated as the BSh-2 or DBsh); fitted with Mikulin Am-35 inline generating 1,350hp.
TsKB-57 - Single Seat Prototype Model fitted with a Mikulin AM-38 inline engine generating 1,700hp.
BSh-2 - Single Seat Production Model Designation; redesignated as the IL-2 in April of 1941.
IL-2M - (or IL-2m3) Rear-gunner position with corresponding .50 caliber machine gun reinstituted with an extended cockpit area; 2 x 20mm cannon replaced with 2 x 23mm cannon; provisions for 8 x 82mm rockets converted to accept 4 x 132mm rockets.
IL-2 Type 3 - Aerodynamic refinements to airframe; 1,770hp powerplant; implementation of faster-acting bomb cell doors for bomblet dispensing.
IL-2 Type 3M - 2 x 37mm cannon with up to 32 x 82mm rockets; aerodynamic adjustments to airframe.
IL-2T - Torpedo Bomber Variant
IL-2U - Two-Seat Trainer Model