Fire Away 

Proof of Efficacy Document for Trebuchet

Written Description 

Our trebuchet is 0.5 meters tall and 0.45 meters long with a width of 0.27 meters. It has a pvc pipe thats 0.36 meters long and  rests 0.26 meters off the ground. The legs are 0.5 meters tall to hep the arm swing. The base is 0.45 meters by 0.27 meters. The sides are 0.5 meters all with two points drilled into to them for changing the arm and axle position. The arm is 0.5 meters long with one hole in the center to change the distance of the arm from the ground. We also have a hook on the front of our trebuchet to hold our rubber bands. 

Selling point of our Trebuchet

There are many things that our trebuchet does well but, our main selling point would be the consistency in our projectiles launch distance. Our projectile  was consistently between 15 meters and 19 meters when launched. We pulled our arm back 180 degrees with 6 rubber bands attached to it for more force. Another selling point would be the height in which the projectile can reach when launched. If the arm was pulled back past 190 degrees the projectile would go higher and higher, reaching up to around 8 meters high. The lowest being 2 meters high.