J-31 (Jianjiji-31 Fighter aircraft 31)
| Preliminary | 2015 Estimate  | |
|---|---|---|
| Crew | one (pilot) | one (pilot) | 
| Length | 16 m (52 ft 6 in) 17.5 Meters (56.75 Feet)  | 16.9 m (55 ft 5 in) | 
| Wing span | 10 m (32 ft 10 in)  13.1 Meters (42.5 Feet)  | 11.5 m (37 ft 9 in) | 
| Canard span | none | |
| Height | 5.35 Meters (17.4 Feet) | 4.8 m (15 ft 9 in) | 
| Wing area | 40 m2 (430 sq ft) | 40 m2 (430 sq ft) | 
| Empty weight | 17 Tons | 17,600 kg (38,801 lb) | 
| Loaded Weight? | 25 Tons | 28 tons [2016] | 
| T-O weight (normal) | ||
| Fuel reserve, spec. weight | ||
| Max landing weight, kg | ||
| Max payload, kg | 8,000 kg | 8,000 kg | 
| Engines |  2 × Klimov RD-93 afterburning turbofans 196 kN (44,000 lbf) with afterburner  |  
 84 kN (19,000 lbf) thrust each 100 kN (22,000 lbf) thrust each  | 
| Thrust/weight | ~1 | |
| Maximum speed, At altitude | Mach 1.8 (2,200 km/h)  Mach 2.0 (1,500 mph, 2,400 km/h) ??  | 2,205 km/h (1,369 mph; 1,190 kn) Mach 1.8 | 
| Maximum speed, Supercruise Speed | ||
| Service Ceiling |  16000 meters 20000 Meters (65,000 Feet) ???  | |
| Combat Radius | 1200 km  2000 Kilometers (1200 Miles) ???  |  1,200 km (777 mi; 675 nmi) 1,250 km [2016]  | 
| Ferry Range | 5500 Kilometers (3400 Miles) | 4,000 km (2,485 mi; 2,160 nmi) | 
| 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 | ||
| Armament | the weapon-bay volume and Stores bays in four zones 
 2016  | |
| Service Life | 30 years | 
| 
 
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