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Huo Che

Huo Che is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Huo Che rather than just read about it. In short: Huo Che (Chinese: 火車) or rocket carts (Chinese: 火箭車) are several types of Chinese multiple rocket launcher developed for firing multiple fire arrows. The name Huo Che first appears in Feng Tian Jing Nan Ji (Chinese: 奉天靖難紀), a historical text covering the Jingnan War (1399 – 1402) of Ming dynasty.

Huo Che — main illustration
Huo Che — illustration

Key takeaways

  • Huo Che belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Huo Che to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Huo Che from memory before moving on to harder problems.

Reference excerpt

Huo Che (Chinese: 火車) or rocket carts (Chinese: 火箭車) are several types of Chinese multiple rocket launcher developed for firing multiple fire arrows. The name Huo Che first appears in Feng Tian Jing Nan Ji (Chinese: 奉天靖難紀), a historical text covering the Jingnan War (1399 – 1402) of Ming dynasty.

History

The dating of the invention of the first rocket, otherwise known as the gunpowder propelled fire arrow, is disputed. The History of Song attributes the invention to two different people at different times, Feng Zhisheng in 969 and Tang Fu in 1000. However Joseph Needham argues that rockets could not have existed before the 12th century, since the gunpowder formulas listed in the Wujing Zongyao are not suitable as rocket propellant. Rockets may have been used as early as 1232, when reports appeared describing fire arrows and 'iron pots' that could be heard for 5 leagues (25 km, or 15 miles) when they exploded upon impact, causing devastation for a radius of 600 meters (2,000 feet), apparently due to shrapnel. A "flying fire-lance" that had re-usable barrels was also mentioned to have been used by the Jin dynasty (1115–1234). Rockets are recorded to have been used by the Song navy in a military exercise dated to 1245. Internal-combustion rocket propulsion is mentioned in a reference to 1264, recording that the 'ground-rat,' a type of firework, had frightened the Empress-Mother Gongsheng at a feast held in her honor by her son the Emperor Lizong. Subsequently, rockets are included in the military treatise Huolongjing, also known as the Fire Drake Manual, written by the Chinese artillery officer Jiao Yu in the mid-14th century. This text mentions the first known multistage rocket, the 'fire-dragon issuing from the water' (huo long chu shui), thought to have been used by the Chinese navy. Rocket launchers known as "nest of bees" were ordered by the Ming army in 1380. In 1400, the Ming loyalist Li Jinglong used rocket launchers against the army of Zhu Di (Yongle Emperor). The American historian Frank H. Winter proposed in The Proceedings of the Twentieth and Twenty-First History Symposia of the International Academy of Astronautics that southern China and the Laotian community rocket festivals might have been key in the subsequent spread of rocketry in the Orient. As multiple rocket launchers, rocket carts were used in the Ming dynasty in the Jingnan War (1399 – 1402) and were carried on the ships of Zheng He (1371 – 1433) during his voyages to India and Africa. Huo Ches were primarily used in a defensive manner for close-range infantry support.

Variants

Huo Che Fire cart (Chinese: 火車; lit. 'fire cart'): A fire arrow engine deployed in Jingnan War, recorded in Feng Tian Jing Nan Ji.

Jiahuo zhanche Wheelbarrow fire engine (Chinese: 架火戰車; pinyin: Jià huǒ zhàn chē; lit. 'rocket chariot'): Multiple rocket launcher supported by a wheelbarrow cart, recorded in Wubei Zhi. The frame of the cart can be attached to variable sizes of rocket pods, including Chang She Po Di Jian (Chinese: 長蛇破敵箭) with 30 rockets per pod, and Bai Hu Qi Ben Jian (Chinese: 百虎齊奔箭) with 100 rockets per pod.

Huojianche Huojianche (Chinese: 火箭車; pinyin: Huǒjiàn chē): It's a type of multiple rocket launcher supported by a two-wheeled cart, recorded in Si Zhen San Guan Zhi.

Gallery

References

Bibliography Lorge, Peter (2005), Warfare in China to 1600, Routledge Lorge, Peter A. (2008), The Asian Military Revolution: from Gunpowder to the Bomb, Cambridge University Press, ISBN 978-0-521-60954-8 Needham, Joseph (1980), Science & Civilisation in China, vol. 5 pt. 4, Cambridge University Press, ISBN 0-521-08573-X Needham, Joseph (1986), Science & Civilisation in China, vol. V:7: The Gunpowder Epic, Cambridge University Press, ISBN 0-521-30358-3.

See also Hwacha Fire arrow Ribauldequin Huolongjing Wubei Zhi

External links

Illustrations

Huo Che: Rocket cart illustrated in Si Zhen San Guan Zhi
Rocket cart illustrated in Si Zhen San Guan Zhi
Huo Che: Depiction of rocket arrows known as "divine engine arrows" (shen ji jian 神機箭) from the Wubei Zhi.
Depiction of rocket arrows known as "divine engine arrows" (shen ji jian 神機箭) from the Wubei Zhi.
Huo Che: A "nest of bees" (yi wo feng 一窩蜂) rocket arrow launcher as depicted in the Wubei Zhi. So called because of its hexagonal honeycomb shape.
A "nest of bees" (yi wo feng 一窩蜂) rocket arrow launcher as depicted in the Wubei Zhi. So called because of its hexagonal honeycomb shape.
Huo Che illustration
Huo Che illustration

Worked examples

Example 1 — a first encounter with Huo Che

Start with the simplest possible case. Write down what Huo Che claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Huo Che before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Huo Che ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Huo Che

In research
Huo Che appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Huo Che in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Huo Che is common in secondary-school and first-year university syllabi. It links to neighbouring topics 14th-century inventions, Artillery of China, Chinese inventions, so understanding it makes those chapters shorter.
In everyday life
Look for Huo Che outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Huo Che in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Huo Che means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Huo Che out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Huo Che in simple terms?

Huo Che (Chinese: 火車) or rocket carts (Chinese: 火箭車) are several types of Chinese multiple rocket launcher developed for firing multiple fire arrows. The name Huo Che first appears in Feng Tian Jing Nan Ji (Chinese: 奉天靖難紀), a historical text covering the Jingnan War (1399 – 1402) of Ming dynasty.

Why does Huo Che matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Huo Che?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Huo Che.

Tags

  • 14th-century inventions
  • Artillery of China
  • Chinese inventions
  • Early firearms
  • Early rocketry
  • Multiple rocket launchers
  • Rocket artillery
  • Weapons of China

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