PFI - Prospective Front-line Fighter - Specifications
PFI program in 1972 | |||||
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Su-27 Flanker |
MiG-29 Fulcrum | Yak-45I | Yak-47 | ||
| Type of engine | AL-31F | R67-300 | R53F-300 | R59F-300 | |
| engine thrust kgf | 2 × 10300 | 2 × 7500 | 2 × 8200 | 2 × 12500 | |
| wing area m² | 48 | 37.6 | 40 | 65 | |
| Normal take-off weight kg | 18000 | 13400 | 13900 | 22800 | |
| Start thrust-weight ratio | 1.12 | 1.12 | 1.18 | 1.1 | |
| load on the wing, kg / m² | 375 | 357 | 348 | 350 | |
| maximum speed at high altitude km / h | 2500 | 2500 | 2500 | 2500 | |
| Maximum speed at sea level km / h | 1500 | 1500 | 1500 | 1500 | |
| ceiling m | 22500 | 21500 | 21500 | 20000 | |
| maximum rate of climb at sea level m / s | 345 | 290 | 340 | 275 | |
| Acceleration: | |||||
| from 600 to 1100 km / h | 12.5 | 15 | 14.5 | 16 | |
| from 1100 to 1300 km / h | 6 | 6.5 | 6 | 7.7 | |
| Practical flight range without PTB: | |||||
| near the ground km | 800 | 820 | 1000 | 1000 | |
| high altitude km | 2400 | 2000 | 2500 | 2500 | |
| Estimated armament: | |||||
| medium-range missiles | × 2 K-25 | × 2 K-25 | × 2 K-25 | × 2 K-25 | |
| short-range missiles | K 6 × 60 | K 4 × 60 | × 2 K-60 | × 2 K-60 | |
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