21 August 2014

Unique weapon of the Ming Dynasty — Huo Jian Liu (火箭溜)

UPDATED APRIL 29, 2022


Ming Chinese Rocket Matchlock Gun
Drawing of a Huo Jian Liu (highlighted) as well as its rack and pinion mechanism, from 'Shen Qi Pu (《神器譜》)'.
China was the first civilisation in the world to field rocket weaponry in warfare. Early rocket was nothing more than a simple, black powder-filled paper tube attached to the shaft of an arrow, hence the name Huo Jian (火箭, lit. 'Fire arrow'). Although devastating, primitive unguided rocket cannot be aimed like a crossbow or arquebus due to limitations of its launching platforms, and thus has low accuracy. Chinese military innovators attempted to solve this problem by developing various types of multiple rocket launchers that can shoot large numbers of rockets at once. While this "spray and pray" approach alleviated the accuracy problem somewhat, it was also very wasteful.

During the late 16th century, Ming firearms specialist Zhao Shi Zhen (趙士楨) proposed a much more refined solution to early rocket's accuracy problem in the form of Huo Jian Liu (火箭溜, lit. 'Fire arrow slip'). Huo Jian Liu is for all intent and purpose a matchlock gun that shoots rocket instead of the usual lead ball, featuring the same barrel, front and rear sight, shoulder stock as well as trigger as an ordinary musket. However, instead of a standard matchlock mechanism, Zhao Shi Zhen fitted the weapon with a Chinese rack and pinion matchlock mechanism identical to that of late Ming variant Lu Mi Chong (嚕密銃). To ensure gunner safety, the matchlock mechanism is mounted at the middle portion of the gun (farther away from the gunner), with a large gun shield installed behind it to deflect rocket backblast.

Huo Jian Liu allows its gunner to aim and launch rocket with greater accuracy. It also has greater range, less recoil, and significantly faster rate of fire than typical musket (due to elimination of pouring powder charge, loading and ramming the ball down the barrel, and priming the flash pan steps in the reloading process). On top of that, the gun is cheaper to manufacture, as it does not need a strong barrel to withstand high chamber pressure, nor does it need a ramrod (although this is offset by more costly rocket ammunition).

Regrettably, Zhao Shi Zhen's invention failed to catch the attention of Ming government, and never went beyond prototype stage.

8 comments:

  1. I have just stumbled across this blog, researching a Ming army project of my own. Please keep up the good work, the Ming should be a more popular force in wargaming. I am definitely bookmarking this page.
    Clibinarium.

    ReplyDelete
  2. Thank you, I will surely dig out more information as time goes on.

    ReplyDelete
  3. Thank you for the reply. I look forward to seeing what comes next.

    ReplyDelete
  4. how do you reload this? and even shoot rocket?

    if you pull the trigger then somehow rocket ingnite it self?

    ReplyDelete
    Replies
    1. Easy. It's just like reloading a crossbow. Place a rocket in the groove.

      Delete
  5. damn this is one underrated weapon, i wonder why the ming never picked them up

    ReplyDelete
    Replies
    1. i wish zhao took an art class, trying to draw this hurts my brain

      Delete
    2. There are probably other problem(s)on the reliability of this weapon that are not discoverable unless someone actually build one and try it out.

      Delete

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