Tupolev SB2 M103

The Tupolev SB-2 M-103 (a late-variant Skorostnoy Bombardirovshchik with Klimov M-103 engines) was primarily used by the Soviet Air Force as their main medium bomber during the early stages of World War II, particularly during the 1941 German invasion. It also saw service in the Winter War (1939–1940) and was utilized by the Finnish Air Force after being captured.