| Tupolev I-4 | |
|---|---|
 | |
| General information | |
| Type | Fighter |
| National origin | Soviet Union |
| Manufacturer | Tupolev |
| Designer | |
| Primary user | Soviet Air Force |
| Number built | 369 |
| History | |
| First flight | 1927 |
| Retired | 1933 |
The Tupolev I-4 was a Soviet sesquiplane single-seat fighter. It was conceived in 1927 by Pavel Sukhoi as his first aircraft design for the Tupolev design bureau, and was the first Soviet all-metal fighter.