YJ-91 is the Chinese version of Kh-31, with YJ short for Ying Ji (Yingji, 鹰击) meaning Eagle Strike. After purchasing 200 Kh-31P from Russia, China decided to develop their own version because the original Kh-31 missile didn't fully satisfy Chinese requirement. The resulting YJ-91 missile is developed by Hongdu Aviation Industry Corporation, the same manufacturer of Silkworm missile. YJ-91 Anti-radiation missile The anti-radiation version of the YJ-91 missile is developed from Kh-31… (More on Yj-91)