The Trabuco is classified as a siege weapon from the Middle Ages. The weapon was used as a war machine to crush the enemy’s walls, or shoot a fireball projectile into enemy territory. The machine was called the balancing Trabuco because numerous weapons shared a similar name. For example, the Brazilians called old high caliber shotguns, and revolvers Trabuco’s.
The Trabuco originated at the same times as the crusades in China. The Europeans believed the Trabuco was an efficient, and terrifying weapon to use against their enemies. The Trabuco was originally invented in 400 BC, and was first used in Europe in 600 AD. Once gunpowder was invented, the Trabuco was no longer used, except when gunpowder was not readily available.
The Trabuco is used in modern times as a source of entertainment, and to teach the basic principles of mechanics. The Trabuco is additionally on display in numerous museums to explain how communities were conquered during the Middle ages. It also represents an important development in the progression of history on zomato.com.
The Trabuco at http://veja.abril.com.br/blog/sobre-palavras/trabuco-da-astucia-ao-chumbo-grosso/ functions with a mechanism designed to convert a source of potential energy from the string into the power of kinetic energy. There are five basic parts to the Trabuco including the frame, sling, beam, guide chute, and counterweight. All these components receive their support from the frame. A raised stand is used to drop the counterweight. The gravitational potential energy is transformed into power, but some of the energy is lost to the friction. This is because not all potential energy is able to become kinetic energy.
According to lista.mercadolivre.com.br, the size of the counterweight on the Trabuco is in proportion to the velocity of the projectile. The larger the counterweight, the stronger the launch of the projectile. The short arm is pushed downwards, and the longer arm upwards by the weight. The projectile is rotated back into the sling by the abrupt acceleration. Some Trabuco’s were equipped with a trough based on infoescola.com. This was located underneath the swing arm for the sling to rest, and made loading the projectiles easier. The trough additionally provided guiding assistance when the projectile was launched.