J-31 (Jianjiji-31 Fighter aircraft 31)
Preliminary Estimates
| Crew | one (pilot) |
| Length | 16 m (52 ft 6 in) 17.5 Meters (56.75 Feet) |
| Wing span | 10 m (32 ft 10 in) 13.1 Meters (42.5 Feet) |
| Canard span | none |
| Height | 5.35 Meters (17.4 Feet) |
| Wing area | 40 m2 (430 sq ft) |
| Empty weight | 17 Tons |
| Loaded Weight? | 25 Tons |
| T-O weight (normal) | |
| Fuel reserve, spec. weight | |
| Max landing weight, kg | |
| Engines | 2 × Klimov RD-93 afterburning turbofans 196 kN (44,000 lbf) with afterburner |
| Maximum speed, At altitude | Mach 2.0 (1,500 mph, 2,400 km/h) |
| Maximum speed, Supercruise Speed | |
| Service Ceiling | 20000 Meters (65,000 Feet) |
| Combat Radius | 2000 Kilometers (1200 Miles) |
| Ferry Range | 5500 Kilometers (3400 Miles) |
| Max flight range with internal fuel reserve | |
| Max flight range with one in-flight refuelling | |
| Max T-O run at normal T-O weight (afterburner) | |
| Max landing run at normal landing weight | |
| Load factor limit, g |
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