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| Components of a Zhong Huo Ku, from 'Wu Bei Zhi (《武備志》)'. |
Zhong Huo Ku (種火庫, lit. 'Fire seed storage') was a type of passive firing mechanism used to trigger
land mines and rocket pods, particularly
Shen Huo Jian Ping (神火箭屏). Designed to be a cheaper alternative to
Gang Lun Fa Huo (鋼輪發火), it wassimpler and faster to build, but less reliable and could only stay active for a maximum of ten days before its incandescent material required replacement.
The workings of Zhong Huo Ku
Zhong Huo Ku was even more simple than Gang Lun Fa Huo, as it was really just a creative application of the principles used in pitfall trap. The pictures below, drawn by me using Adobe Illustrator, shows the workings of Zhong Huo Ku.
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| A Zhong Huo Ku in ready position. |
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| Triggered Zhong Huo Ku. |
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