| Modern Drawings/Air/Russia/Fighters/MiG-MFI-1/MiG-MFI-1-42.htm | Update: - |

Primary version
for production; performance was to be better than that of the 1.44.
NATO assigned it the code name "Foxglove". |
| General |
Technology Demonstrator |
| Powerplant |
| 2 × Lyulka AL-41F afterburning turbofans, 176 kN each |
| Dimensions/Masses |
| 19 m |
15 m | 4.5 m ? m² | 18000 kg 35000 kg |
| Performances |
| Mach
2.24 17000 m 4000 km |
| Armament |
1 × 30 mm Gryazev-Shipunov GSh-30-1 autocannon with 250 rounds |
Since the 1.44 and 1.42 never went beyond pre-production, most specifications are estimated.