The Sukhoi Su-2 (Russian: Сухой Су-2) is a Soviet reconnaissance and light bomber aircraft used in the early stages of World War II.

Powered by a 610 kW (820 hp) Shvetsov M-62 air-cooled radial engine, the ANT-51 reached 403 km/h (220 kn, 250 mph) at 4,700 m (15,420 ft).

Equipped with a 746 kW (1,000 hp) Tumansky M-87 engine, the ANT-51 reached 468 km/h (255 kn, 290 mph) at 5,600 m (18,370 ft) and was accepted into production as BB-1 (Blizhniy Bombardirovschik; Russian: Ближний Бомбардировщик — "short-range bomber").

[1] Although 910 Su-2s were built by the time production was discontinued in 1942,[2] the aircraft was obsolete and underarmed by the start of the Great Patriotic War.

[3] Su-2 ShB (Russian: ШБ — Штурмовик Бомбардировщик; "Attack aircraft-bomber") Su-4 Data from Istoriia konstruktskii samoletov v SSSR, 1938–1950[1]General characteristics Performance Armament