Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The PAC JF-17 Thunder also designated CAC FC-1 Xiaolong is a light-weight, single-engine, multi-role combat aircraft developed jointly by the Chengdu Aircraft Industries Corporation (CAC) of China, the Pakistan Air Force and the Pakistan Aeronautical Complex (PAC). It is designated as "JF-17 Thunder" by Pakistan, which is short for "Joint Fighter-17" and as "FC-1 Xiaolong" by China, which is short for "Fighter China-1 Fierce Dragon".