Sky Sword II

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The TC-2 Sky Sword II (天劍二, Tien Chien II) is a radar guided air-to-air missile developed by the Chung Shan Institute of Science and Technology (CSIST) in Taiwan Republic of China (ROC) during the 1990s for the ROC Air Force. The TC-2 is intended as the mid-range supplement of the IR guided Sky Sword I (TC-1), and both are currently deployed on the ROCAF's F-CK IDF fighters.

The TC-2's seeker head is based on Motorola-Raytheon design, initially a competitor to the AIM-120 contract, which was later won by Hughes. CSIST is reported to have purchased 200 TC-2 seeker head "kits" from Raytheon. This lead to speculation that the ROCAF would have no more than 200 TC-2's in its inventory.

On March 17, 2004, Jane's Defense Weekly reported that CSIST had produced an air-launched anti-radiation (ARM) missile, named Tien Chien IIA (TC-2A). The TC-2A is reported to have a new seeker head and guidance package, possibly with dual-mode pasive RF and IR sensors, and an improved extended-range rocket motor. The updated missile, with its new seeker head, indicates that CSIST's TC-2/TC-2A production is not limited to the original Raytheon order.