The Trabuco is a weapon that was used between the 5th and 15th Centuries to destroy masonry walls or fling projectiles over the walls. It works just like the catapult.It was commonly used in the Mediterranean in both Muslim and Christian countries.The word Trabuco is also used to refer to large shotguns or revolvers in Brazil.
Trabucos originated from China, and were later introduced in European countries in 600 AD. They were made in different sizes and were useful in different situations. The bigger the Trabuco, the longer the intervals between successive launches and the heavier the projectiles it could throw. The earliest type of the Trabuco written on veja.abril.com.br was the traction Trabuco, which needed men to pull the ropes. Standard-sized ones needed between 15 and 45 men to operate, and the largest recorded one needed about 250 people to operate. One of the shortcomings of this Trabuco was the fact that it was impossible to get everyone operating it to pull the ropes with the same force and this affected efficiency and accuracy. The balancing Trabuco came into use later and was more accurate because of the extra weight added to the weapon.
The Trabuco was popular because it was very easy to manufacture and maintain. Its operating mechanism was also very simple; it made use of gravitational energy. There were similar arms in use then but they were not as efficient as the Trabuco. It was quite accurate and a standard sized one could throw up to 140kg-projectiles almost 0.8km away. Not only stones were used as projectiles. Slaves, cows and horses were also used as ammunition. Trabucos were also used in biological warfare, where people attempted to infect their enemies with certain diseases by throwing bodies infected with disease at them.
The Trabuco was in use for a long time and only stopped being so popular after it was overtaken by the use of gunpowder. The last recorded use of the Trabuco was in a battltlan, which is now Mexico City, in 1521 according to dicio.com.br. Today, it is used for fun and in schools to demonstrate some fundamental mechanics principles.
Visit https://pt.wikipedia.org/wiki/Trabuco for more information about trabuco.