The Trabuco, which was a tool that was similar to a catapult, was used exclusively during times of war. The tool could be used to catapult things over walls and into neighboring cities or it could be used for the sole purpose of destroying a large group of people at once.
The way the machine worked was a large stone, or boulder, was loaded into the scoop-like part of the machine. It was then pulled back from the other side and the force from the pullback would throw the boulder over anything the person was trying to hit. Since trabuco was so big and it took so much effort for people to try and use, there were many people who would have to use it at one time. To make this happen, it required a lot of strength. Entire armies would have to get behind the machine to make sure it was working.
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The machine was only used up until around the 11th century according to redetrabuco.com.br. They did not have a good aim which made it hard for people to try and use them. The problem with the lack of aim was that they couldn’t point them exactly where they wanted them and that made things harder on the people who were using them. The armies might be able to direct them into the city, but they couldn’t hit the city center or the group of people who were standing where they wanted to aim the boulder to go.
Another problem was the machine took a long time to use according to merriam-webster.com. Not only did it take long because the entire army had to work together to make sure they were using the sling but it also made it harder for the boulder to get where they were trying to aim. If everyone was working together, the boulder would have to make its way across the wall and over it in time to hit people before they noticed. Trabuco wasn’t very efficient because most people had the ability to get out of the way once they saw a giant boulder slowly flying toward them.