Weight & dimensions
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The Shenyang FC-31 Gyrfalcon (Chinese: 鹘鹰), also known as the J-31 or J-35 is a Chinese prototype mid-sized twinjet 5th-generation fighter aircraft developed by Shenyang Aircraft Corporation (SAC). The official nickname published by SAC is “Gyrfalcon”, though it has also been referred to as the “F-60” or “J-21 Snowy Owl” (Chinese: 雪鸮) in some media reports, or “Falcon Hawk” by some military enthusiasts. J-XX nomenclatures in the Chinese military are reserved for programs launched and financed by the People’s Liberation Army, while FC-31 plane was developed independently as a private project by the aircraft manufacturer.