23:58 GMT +313 November 2018
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    A U.S. F-22 Raptor performs during the Dubai Air Show, United Arab Emirates, Monday, Nov. 13, 2017.

    How Does China’s Stealth ‘Weilong’ J-20 Warcraft Stack Up to the US F-22 Raptor?

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    China’s new J-20, nicknamed ‘Weilong,’ is one of the world’s most advanced fighter jets. But how does it compare to the American F-22 Raptor? Let’s find out.

    In July, the People's Liberation (PLA) Army Air Force, China's aerial warfare service branch, released a video of J-20 nighttime training exercises. The warplane was developed by Chengdu Aerospace and first entered service in 2017. The US F-22 Raptor, which first entered service in 2005, was developed by Lockheed Martin to be used by the US Air Force, the South China Morning Post (SCMP) reported. 

    The two planes, both made of advance-alloy materials and weighing some 19,000 kg, are sized similarly. The J-20 is 20.3 meters long and has a 12.9 meter wingspan while the F-22 is 19 meters long and has a 13.6 meter wingspan. However, the J-20's loaded weight is heavier, at around 32,000 kg compared to the F-22's 29,000 kg. The US plane can take off with a maximum weight of 38,000 kg, slightly more more the J-20.

    Both planes have a maximum speed faster than the speed of sound at 2,470 kilometers per hour. The F-22 has a shorter combat radius of 800 kilometers, while the J-20 has a combat radius of some 1,100 kilometers thanks to a large internal fuel tank, the SCMP reported.

    The F-22 features afterburning turbofan G199-PW-100 engines that include vectoring nozzles which allow the US warplane to carry out maneuvers at speeds above the speed of sound. China did not develop advanced turbofan engines due to production delays, but the J-20 is expected to include a new WS-15 engine next year, will which greatly improve the plane's maneuverability and stealth capacity.

    While the J-20's frontal and side stealth capacities are said to be superb, it is believed to be more susceptible to radar from the rear — in comparison to the F-22.

    The fighters carry their weapons in internal bats. The J-20 can hold up to six air-to-air missiles and hold longer range missiles or an LS-6 precision-guided bomb. The F-22 can carry eight short or medium-range air-to-air or air-to-ground missiles in addition to an M61 Vulcan gun and four under-wing drop tank points. 

    Both fighters have highly-integrated avionics and sensor equipment that include low-observative, active electronically-scanned array (AESA) technology that can detect multiple targets under all weather conditions.

    There is, however, a significant difference in cost, as each F-22 costs about $399 million, and each J-20 is reported to cost between $100-110 million.

    Military pundits assert that while the two fighters are comparable in design and performance, the F-22 is slightly superior due to its advanced engine, although, with the addition of the new Chinese WS-15 turbofan, power parity may not be far off.

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    stealth aircraft, alloys, fighter aircraft, China, United States
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