| I-21 | |
|---|---|
| |
| Role | Jet fighter |
| National origin | Soviet Union |
| Manufacturer | Alekseyev OKB-21 |
| Designer | Semyon Alekseyev |
| First flight | Late 1947 |
| Retired | 1947 after test flight. |
| Status | Prototype |
| Number built | 3 |
| Variants | Alekseyev I-212 |
The Alekseyev I-21 was a Soviet twin-engined jet fighter, built in the late 1940s. Two prototypes were constructed with the designation of I-211, of which one was converted into the I-215 with more powerful engines. A third aircraft was built to evaluate the bicycle landing gear arrangement for use in other aircraft. The fighter was not accepted for production as it was inferior to the swept-wing fighters like the Mikoyan-Gurevich MiG-15.