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To control the launching angle of a projectile was an immense challenge at first, accomplished by more luck with various triggering mechanisms than anything else. With time and refinement however, the manner in which the sling was released became a much more predictable science. The actual release mechanism is shown below. Adjusting the angle of the post upon which the sling release ring is placed varies the angle of release. Increasing the angle of the release pin causes a later release and a more horizontal trajectory, with higher velocity.

Construction Basics

 

The trebuchet was originally constructed entirely of wood, utilizing mortise and tenon type joints for its support members and early variations of the dove-tail type splicing for members of extended length. This resulted in caravans of Horse drawn carts being necessary to transport the entire apparatus to its point of assembly. A more common method was to simply spend a week or so gathering timbers on location when laying siege to a city. This was preferable because it freed up carts and horses for the attacking army so they could bring more provisions and supplies, thus extending their range and speed.

Later trebuchets utilized steel and iron gusset plates to strengthen wooden joints, along with steel rods for the fulcrum. Utilizing ropes to hold the structure together and to prevent splintering of the wood at key joints. Tar and pitch were often used to prevent the trebuchet from weakening due to the elements and weather to which it was exposed during times of siege.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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