Tupolev ANT-40 (SB)
Photographed on 24 August 2009 at the Russian Air Force Museum, Monino, near Moscow.
1936 medium bomber, c/n 4/129, which crashed near Chita in 1942. Restored by Tupolev Experimental Aviation Plant in 1980-1982 and delivered to Monino in April 1982.
SB = Russian: Скоростной бомбардировщик - Skorostnoi Bombardirovschik - "high speed bomber".
This was a high speed twin-engined three-seat monoplane bomber, first flown in 1934.
Numerically the most important bomber in the world in the late 1930s, the SB was the first modern stressed-skin aircraft produced in quantity in the Soviet Union and probably the most formidable bomber of the mid-1930s. Many versions saw extensive action in Spain, the Republic of China, Mongolia, Finland and at the beginning of the War against Germany in 1941. It was also used in various duties in civil variants, as trainers and in many secondary roles.
Successful in the Spanish Civil War because it outpaced most fighters, the aircraft was obsolete by 1941.
Initially powered by two Klimov M-100 12-cylinder water-cooled engines (license production version of the Hispano-Suiza 12-Yrds engine) which drove fixed-pitch two-bladed metal propellers.
At an early production stage, the M-100 engine gave place to an improved M-100A engine, driving ground-adjustable three-pitch propellers, with speed being boosted to 423 km/h (263 mph) at 4,000 m (13,000 ft).
Picture added on 13 September 2009 at 09:02