Taiwan's Republic of China Air Force (RoCAF) unveiled the first batch of 71 upgraded Ching-kuo Indigenous Defense Fighters (IDF/F-CK-1) at Tainan air base in southern Taiwan on 16 January 2014. The USD587.26 million mid-life upgrade (MLU) programme was launched in 2009 and carried out by the state-owned Aerospace Industrial Development Corporation (AIDC). The RoCAF says the upgrade enables the aircraft to remain airworthy for another 20 years and sees improvements to the IDF's flight control, avionics, and radar systems. The latter involves software updates developed by Han Hsiang Corp to enable tracking of multiple targets simultaneously and provide countermeasures against electronic jamming.
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