Sky Sword I

The Sky Sword I, Tien Chien I, or TC-1 (Chinese: 天劍一; pinyin: Tiān Jiàn Yī; Wade–Giles: Tʻien¹ Chien⁴ I¹) is a short range infrared guided air-to-air missile. The missile has fire and forget slave-by-radar capabilities. It consists of an imaging infrared seeker, a high explosive warhead, a solid propellant motor and a guidance control unit. The seeker uses dual spectral IR and has a detection range of 18.5 km. The Sky Sword 1 is also used as a surface-to-air missile by the Antelope air defence system.

The Sky Sword 1 was developed in the mid-1980s and revealed in May 1986, as Taiwan's first indigenous air-to-air missile. The production of the missile started in 1991 and the air-to-air version entered ROCAF service in 1993. It bears a striking similarity to the American AIM-9 (also in Taiwanese service) and fulfills a similar role on the Indigenous Defense Fighter to the AIM-9 on the F-16. In 2017 NCSIST exhibited a variant of the TC-1 with a larger diameter motor.

TC-1 missiles were employed during a 2019 training exercise off Taiwan’s east coast.

The TC-1L is a ground-launched variant for use with the Antelope air defence system.

Developed for use with the Sea Oryx system, the Sea TC-1 variant has an improved seeker, data-link, and rocket motor.