1. December 10, 2002 We Fling Foo 1 We Fling Foo Parabolic Food Aid Delivery System(PFADS) By Rob Berkeley Chris Giuffra University of the Pacific

2. December 10, 2002 We Fling Foo 2 Outline Introduction Project Objectives Preliminary Ideas Refinement Decision/Implementation Construction & Testing Results Improvements Conclusion Acknowledgments

3. December 10, 2002 We Fling Foo 3 Introduction To build a scale model of a PHADS that will carry a Food Aid Package (FAP). It will have to roll down a hill, hit a wall, and then launch a FAP into a village over a mountain.

4. December 10, 2002 We Fling Foo 4 Introduction Constraints –Weight –Size –Cost

5. December 10, 2002 We Fling Foo 5 Introduction Criteria –Accuracy –Weight –Consistence

6. December 10, 2002 We Fling Foo 6 Project Objectives Roll Down Ramp Throw a Food Aid Package over a 3.5’ gap and over a 6’2” wall and land on an X Do not exceed target point

7. December 10, 2002 We Fling Foo 7 Preliminary Design

8. December 10, 2002 We Fling Foo 8 Advantages –Simple structure –Easily adjustable –Low cost to build Disadvantages –Possibly heavy –Catapult arm breakable

9. December 10, 2002 We Fling Foo 9

10. December 10, 2002 We Fling Foo 10 Advantages –Potentially very accurate –Easy angle adjustment –More stability Disadvantages –Harder to build –More difficult to create release mechanism

11. December 10, 2002 We Fling Foo 11

12. December 10, 2002 We Fling Foo 12 Advantages –light weight –Reliable release mechanism –Accuracy Disadvantages –Strength –High center of gravity

13. December 10, 2002 We Fling Foo 13 Refinement

14. December 10, 2002 We Fling Foo 14

15. December 10, 2002 We Fling Foo 15 Refinement Box holder Catapult design Release mechanism Elastic band

16. December 10, 2002 We Fling Foo 16 Decision Design that worked best No wheels Weight on back Change angle of release

17. December 10, 2002 We Fling Foo 17 Decision

18. December 10, 2002 We Fling Foo 18 Results First and second time –Did not go over wall –Did not flip over into river –Released package Third time without wall –Went down ramp and released package very close to X.

19. December 10, 2002 We Fling Foo 19 Improvements Better angle adjustment Stronger design Lower center of gravity

20. December 10, 2002 We Fling Foo 20 Conclusion Overall it performed well even though it did not go high enough Operated in a satisfactory way Need a way to adjust angle more precisely

21. December 10, 2002 We Fling Foo 21 Acknowledgements Dana Kristel UOP Machine Shop