Detailed Illustration of a Bronze Crossbow Trigger Mechanism Crafted According to Ancient Methods

Trigger mechanism, bronze, ancient methods, complete diagram

Military Training Records: Volume 85

Training in Military Skills II

Although the bolt is small, it carries a deceptive weight; even at a hundred paces, it retains surplus force. This proves that the "mechanical force" original: nu li (怒力). This refers to the static tension or "stored fury" held within the mechanical components of the crossbow. of the crossbow cannot match the "fluid power" original: qiao li (巧力). This refers to the "skillful force" or dynamic power generated by a master archer’s body and timing. of the bow.

However, while those in this world who practice with the bow and arrow are found everywhere, you might count hundreds or thousands of them without finding a single master. The skill required is incredibly difficult to perfect. Therefore, Master Ruan original: Ruan Zi (阮子). Likely referring to Ruan Kan, a scholar of the Jin Dynasty known for his interest in technical mechanisms and philosophy. observed:

“The world is full of those skilled with the crossbow but clumsy with the bow. The bow has no fixed sights or physical standards; therefore, its success relies entirely on the archer’s individual skill and mental intent. The crossbow possesses mechanical sights and physical standards; therefore, it is far easier to become proficient.”

Furthermore, regarding the treadle-drawn crossbow original: juezhang zhi nu (蹶張之弩). A powerful military crossbow designed to be cocked by placing the foot in a stirrup and using the strength of the legs and back to pull the string, rather than just the arms. that I have now designed, a person of medium strength can draw it, and even those of average intelligence can master its use. By following the loading and shooting methods described later in this volume, one can learn the technique in the morning and be fully proficient by the evening...