1. Parabolic Food Aid Delivery System Manjaneeq Allison King Bader Asadallah University of the Pacific Stockton, CA 12/5/2002

2. Outline Problem Definition Approach (Design Process) Results Improvements Conclusions Acknowledgements

3. Introduction Mobile parabolic food aid delivery system Refugees surrounded by a piranha- infested river Mountainous jungles full of wild dangerous creatures Goal is to get food to refugees

4. Constraints No bigger then 18”x18”x18” 10 pounds Must sit behind a line 12 inches from the top of the ramp Must be self triggering Can’t cost more the $20

5. Criteria Minimum weight Minimum size Maximum accuracy Launch the FAP over the wall

6. Project Objectives Build a food delivery system It has to catapult a food aid into the refugee camp Camp walls are 6 feet 2 inches It must launch a distance of 10 feet Has to launch a 7 ounce box

7. Project Objectives (cont.) Group work Use the design process

8. Launch Ramp and Target Area (Elevation View) PYTHON-INFESTED JUNGLE BOUNDARY 4 in 4 ft 8 ft START LINE FAP TARGET SPOT 6 ft 2 in 3.5 ft 10 ft Figure1

9. Launch Ramp and Target Area 2 ft 7 ft FAP TARGET SPOT START LINE 1 ft 2 ft FAP TARGET SPOT TRACK 1 TRACK 2 Piranha Infested River 3.5 ft 10 ft 6' 2" Wall 10 ft PYTHON-INFESTED JUNGLE BOUNDARY Figure 2

10. Preliminary Ideas Figure 3 Pros:Cons: StableNot much power Accurate triggerShort launch arm

11. Preliminary Ideas Figure 4 Pros:Cons: Long launch arm Might not have enough power More power then others Stable

12. Preliminary Ideas Figure 5 Pros:Cons: StableNo trigger Good powerHard to build

13. Preliminary Ideas Figure 6 Pros:Cons: AccurateHard to build StableNo trigger

14. Decisions The only one that all parts logically worked Felt springs were more accurate Good trigger Connected to FAP longest

15. Refinements Adding extra springs Add block of wood where trigger hits Extending arms that hold the FAP Bending angle of arms positioning

16. Construction Drilling holes

17. Construction First attempt

18. Construction Working on launch timing

19. Testing

21. Final Mechanism

22. Results Rank (?/37) Weight (lb) Length (in) Width (in) Height (in) 18617.2511.7512.5 Trial 1(ft)Trial 2 (ft)Trial 3 (ft) N/A 8.17 FOM Trial 1 FOM Trial 2 FOM Trial 3 FOM Final N/A 43.58 Figure 8

23. Suggested Improvements Bungees Stronger metal rods Don’t use springs Smaller wheels

24. Conclusion Springs don’t have enough force to make the PFAP go over a 6 ft. wall Springs can make the 10 ft. length accurately Manjaneeq was too long to fit on the ramp, behind the yellow line

25. Acknowledgements Professor King Daniel Holt Salem Al-Othman Engr 5 web page

26. Questions?