Trebuchet Day: 2005

1. Trebuchet Day: 2005 David Fish, Jesse Parker, Thies Filler

2. Goals • Build a trebuchet under $40 • Make it launch as far as possible • Make it launch accurately • Observe the effects of increased weight, wheels, and launch pin angle

3. Planning • We selected the products which we believed would make the best trebuchet • Some were estimated, because we weren't sure what would make a good trebuchet • We decided on a smaller trebuchet with a swinging counterweight, long launch arm, and pipe for wheels

5. The Build • Our actual build was slightly varied from our design • Because we found uses for excess wood • We were able to make our design more stable with an altered design • We found that a duct tape sling worked ideally for our design • Our design allowed for a much longer sling arm than we intended, which ultimately increased how far we launched

6. Other Groups Tom Brandon Thies Drew Our Base

7. Nice Cutting Drew Wonder why our arm is crooked???

8. Getting the arm up

9. Jesses fixing what we messed up

12. The Launch • After a few minor adjustments the launch went very well and we went on to dominate in • The distance competition • The battle • We conducted tests in weight v. distance, wheels v. stationary, and launch angle

16. Testing The Wheel-less Trebuchet

17. 3…2…1….Launch!

18. Here’s the news guy checking out how cool our trebuchet was…

19. Here’s Mr. T Everyone else stop trying….Jesse’s groups already won it

20. Were getting ready to launch our max distance…93 yards!!! .

21. In Summary… • We achieved all of our goals, and had a great launch day • We discovered • Weight and distance are linearly proportional • Wheels increase distance by approximately 10% • The speed of the arm effects the release angle

22. The End