All Aero

During 1937 8, Sukhoi was primarily concerned with the design of a light reconnaissance bomber intended to succeed the R 10, this being the ANT 51 two seat mid wing monoplane which, powered by an M 62 radial, flew in 1938. During the following year, Sukhoi established his own design bureau, and began the redesign of the ANT 51 with an M 88B engine, a low wing and an increased offensive load, this emerging as the BB 1, entering series production in 1940, and being redesignated Su 2 in 1941.