“尾刺”原称“红眼睛”Ⅱ型,是比“红眼睛”更快、更机动、射程更远的地空导弹。“尾刺”的光学导引头采用了独一无二的玫瑰花图案扫描技术,它在红外和紫外波段均能搜索目标。红外搜索通过探测发动机喷气流一类的热源截获目标,而同时进行的紫外搜索则可鉴别飞机与天空的不同辐射。 “Tail thorns” formerly known as “red eyes” Ⅱ type, is faster than the “red eyes”, more maneuvering, longer range of surface to air missiles. “Tail Thorn” optical seeker uses a unique rose pattern scanning technology, which can search the target in the infrared and ultraviolet bands. Infrared search intercepts targets by detecting sources of heat, such as engine jet streams, while simultaneous UV searches identify different emissions from the aircraft and the sky.