The medival trebuchet

Trebuchets were a very important development of the medieval ages. They were used to hurl huge stones at enemy forces in battle. It is theorized that the trebuchet was invented around 300 BCE but more commonly used around the twelfth century ACE. It was a remarkable engine because it could hurl rocks up to 300 pounds, compared to the 50 or 60 pound rocks that were previously capable of being thrown by siege catapults. Some of the largest trebuchets had counterweights of 20 000 pounds and could sling a 300 pound rock over 300 meters.

The trebuchet consists of a base which supports an axle on which is the arm. At one end of the arm is the projectile and at the other is the counterweight. The counterweight is generally hanging from the arm to make the trebuchet more efficient. At the other end of the arm is the projectile which is attached to a sling. The string provides extra extension of the arm without adding additional weight, giving the machine a better mechanical advantage. The sling is then attached to a pin which is bent at a 45 degree angle so that it releases the projectile at the optimum angle, for maximum distance.

The invention of the trebuchet was significant because it represented a breakthrough in the fields of architecture and engineering and the machine would be part of a technological revolution that was a major event in our past. The trebuchet continued to be used for centuries until it was made obsolete by the invention of gunpowder machines such as cannons.