Huo Jian Dao Liu Xing (火箭刀溜形)

Drawing of a Huo Jian Dao Liu Xing (highlighted), from 'Shen Qi Pu Huo Wen (《神器譜或問》)'

Huo Jian Dao Liu Xing (火箭刀溜形, can be roughly translated to 'Rocket slip blade') was a polearm designed by Zhao Shi Zhen (趙士楨), likely as an alternative to Tang Pa (鎲鈀). It had a long double-edged chopping blade similar to Dian Guang Jian (電光劍), albeit with a two-pointed tip. Huo Jian Dao Liu Xing featured two iron rings on the flat of its blade, serving as arrow rest that held a rocket in place for easier aiming.