The Shenyang J-15 (Chinese: 歼-15; pinyin: Jiān-Shíwǔ), also known as Feisha (Chinese: 飞鲨; pinyin: fēi shā; lit. 'Flying Shark'; NATO reporting name: Flanker-X2,[2] Flanker-K[3]) is a Chinese all-weather, twin-engine, carrier-based 4.5 generation[4] multirole fighter aircraft developed by the Shenyang Aircraft Corporation (SAC) and the 601 Institute, specifically for the People's Liberation Army Naval Air Force (PLANAF) to serve on People's Liberation Army Navy's (PLAN) aircraft carriers.