The Yer-2 (DB-240) was a Soviet piston-engine strategic bomber that served in the Soviet Long Range Aviation during World War II. Originally developed as a passenger aircraft, the Stal-7, by Robert Ludwigovich Bartini, the aircraft had a range of 5,000 km. However, after Bartini's arrest in 1938, his design bureau proposed converting the aircraft into a strategic bomber to the Soviet leadership. After receiving approval, the Stal-7 was redesigned under the direction of the new chief designer, Vladimir Grigoryevich Yermolaev, and entered operational service in May–June 1941 under the designation Yer-2. The bomber did not become widely used due to its poor flight characteristics, frequent accidents, and engine fires. From 1940 to 1945, a total of 462 Yer-2 bombers of various modifications were built.

The Yer-2 was originally designed for M-106 engines. However, due to delays in their development, the aircraft was fitted with less powerful M-105 engines, which resulted in its relatively poor performance. The first Yer-2 production aircraft had a “MV-3” turret with a ShKAS machine gun instead of the upper turret “TAT-BT” with a heavy Berezin machine gun.

The Yer-2 (M-105) has been in the game since the start of the Open Beta Test prior to Update 1.27. It is notable for its heavy bomb load, which allows it to easily destroy one or two bases. However, its extremely poor flight performance and weak, limited defensive armament consisting of light ShKAS machine guns require it to avoid encounters with enemy aircraft.