The Chengdu J-10 Vigorous Dragon (; NATO reporting name: Firebird), is a medium-weight, single-engine, multirole combat aircraft capable of all-weather operations, configured with a delta wing and canard design, with fly-by-wire flight controls, and produced by the Chengdu Aircraft Corporation (CAC) for the People's Liberation Army Air Force (PLAAF), Pakistan Air Force (PAF) and People's Liberation Army Naval Air Force (PLANAF). The J-10 is mainly designed for air-to-air combat, but can also perform strike missions. Development In 1981, PLAAF Commander Zhang Tingfa submitted a proposal to Deng Xiaoping for the development of a third-generation fighter for ; it was accepted later that year by the Central Military Commission (CMC). It was the first Chinese aircraft program to incorporate modern development and acquisition processes. In one departure from the past, the supplier was now responsible directly to the customer; this allowed the PLAAF to communicate its requirements and ensure they were met; previously suppliers were responsible to their managing agency, which could produce products that failed to meet end user requirements. Another difference was the selection of a design through competition, rather than allocating a project to an institute and using whatever design that institute created. Design proposals were made by the three major aircraft design institutes. Shenyang's proposal was based on its cancelled J-13 with a F-16-like strake-wing. Hongdu's proposal was MiG-23/Su-24-like with variable-sweep wing. Chengdu Aircraft Design Institute's (CADI) proposal was a Saab 37 Viggen-like design based on its cancelled J-9. CADI's proposal was selected in February 1984. The following month, CADI and Chengdu Fighter Factory were formally directed to develop and manufacture the aircraft, respectively. Song Wencong (宋文骢) became chief designer. The engine was selected during the design proposal stage. Candidates were an improved Woshan WS-6, the WP-15, or a new engine. The new engine, ultimately the Shenyang WS-10, was chosen in 1983. The State Council and the CMC approved the program in 1986, code-naming it "No. 10 Project". Interest waned in the following years which constrained funding and prolonged development. The Gulf War renewed interest and brought adequate resourcing. Unlike earlier programs, the J-10 avoided crippling requirement creep. Technical development was slow and difficult. The J-10 represented a higher level of complexity than earlier generations of Chinese aircraft. About 60% of the aircraft required new technology and parts, instead of - according to Chengdu - the usual 30% for new aircraft; the high proportion reflected both requirements