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The Trebuchet is a siege weapon used to break up enemy formations or to smash gates and battlement walls. Although it resembles a catapult, its mechanism is different. The main contraption is a leverage mechanism with a counterweight on one side and a projectile sling on the other. The counterweight sets the entire arm in motion and the projectile (most often a dressed stone) flies up to several hundred metres along its ballistic trajectory. Apart from stones, the payload could be burning bales of straw, dead bodies or barrels of faeces. The disadvantage of the weapon was how demanding and time-consuming it was to load.

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