Tupolev Tu-4 (NATO code "Bull") was a Soviet bomber with 4 piston engines, which was copied in the USSR by the American Boeing B-29 Superfortress, which during World War II between July 29, 1944 and November 21, 1944 after the bombings of Japan and Manchuria ended in the USSR. The machine became the first Soviet long-range bomber to have the ability to carry nuclear weapons. It was produced between 1949 and 1952, a total of 847 pieces were produced, some of which were exported to China.
One specimen is on display at the Monino Air Museum in Moscow (Central Air Force Museum).