Mikoyan-Gurevich I-75
| I-75 | |
|---|---|
| Role | Experimental interceptor aircraft | 
| National origin | Soviet Union | 
| Manufacturer | Mikoyan-Gurevich | 
| First flight | 1958 | 
| Status | Terminated after losing competition to T-43 (Su-9) | 
| Developed from | Mikoyan-Gurevich I-7 | 
| Developed into | Mikoyan-Gurevich Ye-150 family | 
The Mikoyan-Gurevich I-75 was the final design of a series of three experimental swept-wing interceptors developed in the Soviet Union in the mid-late 1950s by the Mikoyan-Gurevich design bureau from their Mikoyan-Gurevich I-3 airframe. All the aircraft in the I-3 program were affected by delays in the development of the Klimov VK-3 turbojet engine, its cancellation and ultimate replacement by the Lyulka AL-7F turbojet engine.