Xiaolong /FC- 1 Aircraft is an all-weather, single-engine, single-seat and multi-purpose light fighter jointly invested by China and Pakistan, and developed by Chengdu Aircraft Industry (Group) Co., Ltd., Chengdu Aircraft Design and Research Institute and China Aviation Technology Import and Export Corporation. It operates according to the laws of market economy and is developed by Pakistan Air Force. After the first flight, China officially named it Xiaolong /FC- 1, and Pakistan named it "Thunder /JF- 17".