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| MiG-21US - Two-seat training fighter |
| Further development of famous Mikoyan MiG-21 Fishbed single-seat variant demanded upgrade of two-seat trainer — MiG-21U (Mongol-A). New modification was designated MiG-21US (Mongol-B) and performed its first flight in 1966. If to compare with earlier series MiG-21US received new, more powerful, engine R-11F2S-300, ejection seats KM-1M, increased fuel load (2030 kg (2450 litres)) and enlarged verical fin, the same as for MiG-21PFM and later variants. During production on rear canopy was installed rising mirror to improve instructor's field of view on take-off or landing. |
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