This is an image of Shelby and my trebutchet. We used a shot sling because we found it the most efficient.

This is just another view of our trebuchet.

  In our paper trebuchet challenge our trebuchet did very well. Our trebuchet was constructed quickly and correctly. Shelby did a very good job making our pouch.We learned that the more weights that you added and the closer you got to a 45 degree angle, the farther the projectile would go. In the end it took 35 washers and our angle was very close to 45 degrees. On average our paper trebuchet shot 6.5 meters and was very accurate. Due to the fact that we tested them inside, we did not have to deal with wind resistance. The only environmental factors that we had to deal with were gravity.