FC-20 M-MRCA Emerges
The first single-seat FC-20 prototype was rolled out by CAC last December
By Prasun K. Sengupta
China’s Sichuan-based Chengdu Aerospace Corp (CAC) and its affiliated 611 Institute has begun a hectic but structured flight-test programme for the FC-20 medium multi-role combat aircraft (M-MRCA), whose launch export customer is the Pakistan Air Force (PAF). The PAF has an initial requirement for 36 single-seaters and four tandem-seat operational conversion trainers, and envisages a total requirement for 80 FC-20s distributed among four squadrons.
The first single-seat FC-20 prototype was rolled out by CAC last December and it made its maiden flight last March. Derived from the CAC-built J-10A Vigorous Dragon M-MRCA, the FC-20 incorporates an under-nose modified lightweight air inlet, redesigned vertical tailfin, strengthened underwing inner pylons designed for carrying standoff precision-guided munitions (PGM) like the glide kit-equipped LS-6, nose-mounted infra-red search-and-track (IRST) system, a glass cockpit equipped with a holographic wide-angle heads-up display (HUD), a pair of inverted-gull wings (with the inner upper portion extending slightly downward, while the outer portion extending flat), a fixed in-flight refuelling probe, a large vertical tail, twin ventral stabilisers for providing greater stability at high angles of attack, and a single AL-31FN-M1 turbofan engine rated at 132.4kN thrust with afterburning. In August 2005 China had inked a USD 300 million contract with Russia’s Rosoboronexport State Corp to acquire initial 100 such engines. The entire R&D phase of the FC-20 is being carried out under the oversight of China’s state-owned China Aviation Industry Corp (AVIC).
The FC-20 will be able to carry 4.5 tonnes of weapons payload, and will come equipped with 11 hardpoints for carrying a wide range of air combat missiles (both within-visual-range and beyond-visual-range) and PGMs. The FC-20’s performance parameters include a maximum combat radius of 2,540km (1,370nm) in a hi-lo-hi mission profile, or of 1,310km (710nm) in a lo-lo-lo mission profile when carrying a 1,810kg (4,000lb) weapons payload.
The M-MRCA will have an empty weight of 9,750kg, maximum takeoff weight of 19,277kg, internal fuel capacity of 4,500kg, maximum speed of Mach 2 at high altitude and Mach 1.2 at sea level, takeoff run of 500 metres, combat radius of 1,100km, and a service ceiling of 18,000 metres. The FC-20 has a wingspan of 8.78 metres, overall length of 14.57 metres, height of 4.78 metres, and a gross wing area of 33.1 square metres. The airframe features high-quality welding, but is overwhelmingly of metallic construction, with composites accounting for only 12 per cent of the fuselage area.
CAC and its affiliated 611 Institute are now preparing to roll-out a tandem-seat deep interdictor variant of the FC-20, which, like the single-seater, will be equipped with a laser target acquisition/designation pod, laser-/GPS-guided PGMs, as well as PL-9C within-visual-range and PL-12 beyond-visual-range air combat missiles built by the Luoyang Opto-Electro Technology Development Centre. Design of this variant of the FC-20 is derived from the J-10B operational conversion trainer that made its maiden flight on 26 December 2003.
The FC-20’s tandem-seat variant will feature a stretched forward fuselage and a single-piece bubble canopy. Its dorsal spine will be enlarged to accommodate those avionics displaced by the rear cockpit. The PAF is widely expected to equip its FC-20s with the SELEX Galileo-built X-band Vixen 500E airborne active phased-array fire-control radar. The glass cockpit avionics suite will includes a wide-angle holographic HUD with up-front control panel and a video camera, twin monochrome AMLCD-based multifunction displays, a single colour AMLCD head-down display, infra-red sensors for a helmet-mounted sight, hands-on-throttle-and-stick (HOTAS) controls, ring-laser-gyro-based inertial navigation system, air data computer, ARW-9101A radar warning receiver, Type 634 digital quadruplex fly-by-wire flight control system using a MIL-STD-1553B digital data bus, and a digital fuel management system and stores management system.
The FC-20’s compound delta-wing configuration will offer two important aerodynamic qualities. The swept leading edge of the wing will stay ahead of the shock-wave generated by the FC-20’s nose during supersonic flight, thus making the compound delta-wing a very efficient aerodynamic wing shape for supersonic flight. The leading edge of compound delta-wing will also generate a massive vortex that will attach itself to the upper surface of the wing during high angle-of-attack (AoA) manoeuvres, resulting in very high stall points.
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