| Tu-4 | |
|---|---|
 | |
| General information | |
| Type | Strategic bomber |
| National origin | Soviet Union |
| Manufacturer | Tupolev |
| Primary users | Soviet Air Force |
| Number built | 847 |
| History | |
| Manufactured | 1949–1952 |
| Introduction date | 1949 |
| First flight | 19 May 1947 |
| Retired | 1988 (China) |
| Developed from | Boeing B-29 Superfortress |
| Variants | Tupolev Tu-70 Tupolev Tu-75 |
| Developed into | Tupolev Tu-80 Tupolev Tu-85 |
| Successors | Tupolev Tu-16 |
The Tupolev Tu-4 (Russian: Туполев Ту-4; NATO reporting name: Bull) is a piston-engined Soviet strategic bomber that served the Soviet Air Force from the late 1940s to mid-1960s. The aircraft was a copy of the American Boeing B-29 Superfortress, having been reverse-engineered from seized aircraft that had made emergency landings in the USSR.