AIDC F-CK-1 Ching-Kuo (Chinese: Jīngguó Hào Zhànjī),  Indigenous Defense Fighter (IDF),

The AIDC F-CK-1 Ching-Kuo (Chinese: 經國號戰機; pinyin: Jīngguó Hào Zhànjī), commonly known as the Indigenous Defense Fighter (IDF), is a multirole combat aircraft named after Chiang Ching-kuo, the late President of the Republic of China. The aircraft made its first flight in 1989. It entered service with Republic of China Air Force (Taiwan) in 1992. All 130 production aircraft were manufactured by 1999

Design phase

The AIDC officially began the IDF development project in May 1982 following the ROCAF's failure to purchase new fighters from the United States as a result of Chinese diplomatic pressure. The project, led by Hsi-Chun Mike Hua, later known as the father of the Indigenous Defense Fighter, was named An-Hsiang (安翔, Safe Flight) and divided into four sections in 1983:

• Ying-Yang (鷹揚): "Soaring Eagle". Development of the airframe. Some cooperation with General Dynamics.
• Yun-Han (雲漢): "Galaxy". Development of the aircraft powerplant and propulsion. Cooperation with Garrett (Now Honeywell).
• Tien-Lei (天雷): "Thunder". Development of the avionics systems. Some cooperation with Smiths Industries, with some components purchased directly from Lear Astronics (today a subsidiary of BAE), Litton (today a subsidiary of Northrop Grumman) and Martin-Baker.
• Tien-Chien (天劍): "Sky Sword". Development of air-to-air missiles.

In April 1997 American company Litton's Applied Technology division was awarded a production contract and options totaling $116.2 million by the Aerospace Industrial Development Corporation for Improved Radar Warning Receivers (IRWR) to be installed aboard.