紅旗9好像跟愛國者也有些關係 The HongQi 9 development began in the early 1980s, initially based on the U.S. Patriot air defence missile system that China obtained via an unknown third-party country. Like the Patriot, the HongQi 9 uses a ‘Track-Via-Missile’ (TVM) terminal guidance system and was originally designed to be launched from a Patriot-style slant-positioned box-shape container launcher. 紅旗9的開發始於20世紀80年代初,最初是基於通過一個未知的第三方國家,中國獲得美國的愛國者防空導彈系統。紅旗9愛國者一樣,使用“通過跟踪導彈'(TVM)終端制導系統,最初是設計推出愛國者風格的斜定位箱形的容器發射。