1. Team 1: On Wings Like a Penguin Engineering 340 May 3, 2008

2. Team Members Chris Lowell, Joe Englin, Eu Sung Chung, Phil Baah-Sackey ||||||||||||||||||||||||||

3. Presentation Overview Objectives Hovercraft Basics Initial Design Design Obstacles Refined Design Future Improvements Acknowledgements Questions ||||||||||||||||||||||||||

4. Objectives Build a two person hovercraft Land and sea travel Attain speeds of 5 mph or greater Craft weight must remain under 400 lbs Fabricate as many components as possible Make craft safe for operators and bystanders Intuitive design ||||||||||||||||||||||||||

5. Hovercraft Basics A hovercraft (or Air Cushion Vehicle) uses pressure differentials to lift itself off of the ground ||||||||||||||||||||||||||

6. Software Tools Modeling program – Autodesk Inventor ||||||||||||||||||||||||||

7. Software Tools Finite element analysis – Algor FEMPRO ||||||||||||||||||||||||||

8. Initial Design Hull constructed from foam and wood Two engines; one for lift, one for thrust Triangular in shape, 6 ft x 12 ft Bag style skirt Air directed into skirt by splitters Joystick style controls Electronic engine shut off ||||||||||||||||||||||||||

9. Initial Design ||||||||||||||||||||||||||

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12. Initial Design ||||||||||||||||||||||||||

13. Initial Design ||||||||||||||||||||||||||

14. Initial Design |||||||||||||

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16. Initial Design ||||||||||||||||||||||||||

17. Initial Design ||||||||||||||||||||||||||

18. Initial Design ||||||||||||||||||||||||||

19. Design Obstacles Fan pitch was too steep Not enough horsepower Throttle cable issues “Sloppy” steering ||||||||||||||||||||||||||

20. Refined Design More than double the power! Modified steering tube Foot pedal throttle ||||||||||||||||||||||||||

21. Completion ||||||||||||||||||||||||||

22. Completion ||||||||||||||||||||||||||

23. Completion ||||||||||||||||||||||||||

24. Completion ||||||||||||||||||||||||||

25. Future Improvements Different fan/propeller pitches Different lift engine orientation Better throttle design Better steering design Reduced weight Reinforced fan/propeller blades Aluminum rear engine stand ||||||||||||||||||||||||||

26. Acknowledgements Phil Jasperse Charlie Huizinga Trevor at West Marine Stores Professor Ned Nielsen Professor Steve Platt Professor Rich DeJong Mitch Kenyon ||||||||||||||||||||||||||

27. Questions? ||||||||||||||||||||||||||