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J-31 Multipurpose fighter

J-31 Multipurpose fighter. First flight: 2012 © www. top81.cn
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On October 31st, 2012 the J-31, by AVIC Shenyang Aircraft Corporation, performed its maiden flight, which lasted for 10 minutes, at the firm's facilities. 

The fighter is in same category along with planes such as MiG-29, MiG-35, F-35 and F-22, with its maximum weight around 24-25 tn. 

 

Chenyang J-31 © Konstantinos Panitsidis
 Large internal weapons compartment (it was achieved by moving the powerplant to the tail of the plane).

 

Powerplant WS-13

The J-31 will possibly carry the WS-13 powerplant (a clone of the russian RD-33/93 by Klimov). According thought to Chinese officials statements, it has many modifications and expanded service life compared to RD-33/93.

The powerplant WS-13 has a 4 stage compressor with variable step blade in the first three stages, annular combustion chamber and a two-stage turbine with non-movable mono-crystal blade. It's equipped with digital control system. 

 

Chenyang J-31 © Konstantinos Panitsidis
 Powerplant characteristics (estimated): 

 
Maximum thrust (with afterburner) 8300 kg. Maximum thrust (without afterburner) 5040 kg. Fuel consumption with afterburner 2,05 kg/kg*h. Fuel consumption without afterburner 0,77 kg/kg*h. Bypass ratio 0,49. Length 4229 mm. Diameter 1.040 mm. Net weight 1.055 kg; Service life 1.400 h. Overhaul operation time: 700 h. 




Three-view drawing

Chenyang J-31 © Konstantinos Panitsidis




Technical specifications

DESIGNER Chenyang
COUNTRY China
TYPE
Fighter aircraft
CREW 1
POWER-PLANT Two WS-13A (RD-33/93) turbofan engines
Thrust, kgf  
- with afterburning
2x8.300 (9.500)
- without afterburner
2x5.040
DIMENSIONS
 
Length, m
15,47
Height, m
4,57
Wing span, m
10,70
Wing area m2
42,70
WEIGHT  
Maximum take-off, kg 25.000
Normal take-off, kg 17.500
Empty aircraft, kg 12.000
Internal fuel, kg 7.500
Weight of transported fuel with external tanks, l -
Warload, kg  5.897
PERFORMANCE  
Maximum speed, km/h 2.205
Cruising speed, km/h -
Maximum speed in low height, km/h until 1.400
Combat range, km
1.250
Range, km 2.000
Ferry range, km 4.000
Service ceiling, m 12.000
Rate of climb, m/s 330
Maximum overload, g 9
ARMAMENT Number external hardpoints: 12