[1] According to Su Tzu-yun, chief executive officer at the Center for Advanced Technology at Tamkang University, they are a cost-effective design which can perform a key role in Taiwan's defense strategy, and substantially offset China's air superiority.

[5][1] In 2017 a Sky Sword II launched by a F-CK-1 during a training exercise failed to ignite and fell into the sea.

This development was revealed to the public in 2005 and the intention to make it compatible with vertical launch methods was later announced in 2006.

[8] In the naval role the TC-2N fills an air defense gap between the Phalanx CIWS and SM-2 systems[9] with a range of 30 km (19 mi).

It also has folding control surfaces to be quad-packed into either above-deck oblique launchers or in-deck vertical launch systems.

Final evaluation was conducted aboard the Tuo Chiang-class corvette Ta Chiang.

[citation needed] NCSIST has exhibited a truck mounted version with four missile pods.

Because it lacks the naval version's booster, however, its effective range is reportedly only 15 km (9.3 mi).