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Hovercraft Project

Hovercraft Project. Josh Alfaro Amanda Johnson Dustin Lee. Problem Statement Group Development Timeline Background Customer Deliverables Brainstorming Research Criteria and Constraints Explore Possibilities Select an Approach Design Proposal Prototype Refinements

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Hovercraft Project

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  1. HovercraftProject Josh Alfaro Amanda Johnson Dustin Lee

  2. Problem Statement • Group Development • Timeline • Background • Customer • Deliverables • Brainstorming • Research • Criteria and Constraints • Explore Possibilities • Select an Approach • Design Proposal • Prototype • Refinements • Final Prototype • Room for Improvement • Conclusion Table of Contents

  3. As high school students we would like to work on a project that will enhance or understanding of the scientific principles involved in using airflow to both lift an object off the ground and direct its path of travel. Problem Statement

  4. Team Leader: Josh Alfaro • Scribe: Amanda Johnson • Timekeeper: Dustin Lee Group Development

  5. Timeline

  6. Hovercraft - Air-cushioned vehicle that can travel over surface horizontally. • 1956- First hovercraft invented by Christopher Cockerell • Norman B. McCreary designed the “skirt”. • “Skirt” design is to focus the air to lift vehicle. • Air fills the skirt to lift • June 11, 1959 SR.N1 completed first hover • July 25, 1959 SR.N1 crossed the English Channel. Background

  7. Hovercrafts became known as active transport systems • High-speed service over water and land, • Innovations for military vehicles • Today used for recreational activities Background

  8. Mr. Pritchard • Mrs. Brandner Customer

  9. Works To Be Completed • Research on principles in the construction • Construct a prototype. • Vehicle can hover over the ground • Controlled by a remote. • Powered by batteries • Size specifications • Final report • Engineering Notebook • PowerPoint presentation Project Scope

  10. Necessary Resources • Purchase of various materials • Hardware store or parts specialist knowledge. • Necessary materials for hovercraft function • Research various topics on the hovercraft • Estimated Project Cost: $125.00 Project Scope

  11. Scope Limitations • Personnel limitations: • Expert advice • Supplies or material limitations: • Cost effective & efficient materials • Proper tool and function • Schedule limitations: • Individual Schedules and commitments Project Scope

  12. Hovercraft • Final Report • Engineering Notebook • This PowerPoint Deliverables

  13. Information we Know • Specifications on prototype • Project & Prototype Guidelines • Questions Requiring Research • Group brainstorming • Various topics • Calculations • Materials & Parts Brainstorming

  14. Rationale • Base is light weight and strong enough to support parts • Fabric material will be used for skirt • The skirt has to trap air, so the hovercraft can hover • Fabric material provides air cushion • The radio transmitter and receiver are controlling vehicle • DC batteries power motors & fans • Components control speed, lift, and direction Brainstorming

  15. Basic Information • Brainstorming • Materials & Parts • Physics and Math Principles • Math Equations Research

  16. In order to successfully complete this hovercraft project there are a few criteria and constraints that have to be met. • Must be no bigger than 8.5’’ by 11’’ • Take at least 100 hours to complete • Must be able to hover • Must be able to make gradual turns • Must be controlled by a remote controller • Must incorporate math and science principles • Must complete all documentation • Year long Journal Technical Report • Final Presentation Criteria and Constraints

  17. Solution 1 • Pros • Batteries act as a counter weight to the propulsion fan • Limited use of fans • Cons • Not to scale • The weight of the motors and fans may not be equal causing it to be unbalanced • Not enough information for the fan propelling the hovercraft Exploring Possibilities

  18. Solution 2 • Pros • Enough propulsion to lift the craft • Evenly balanced • Rudder system as a turning mechanism • Square shape for easy balancing • Cons • Too many fans • No motor for the propulsion fan • Inadequate labeling of parts Exploring Possibilities

  19. Solution 3 • Pros • Good placement of lift fans, battery, and motor • Skirt is shown • Rudder system is shown • Cons • Too wide of a body • Too heavy at the back of the craft • Wasted materials Explore Possibilities

  20. Solution 4 • Pros • Two propulsion fans • Efficient use of fans and motors • Cons • Too thick of a body • Too heavy of a design • Batteries are only on one side causing the craft to tilt Explore Possibilities

  21. Selecting an Approach

  22. Selecting an Approach

  23. Design Proposal: CAD Drawings

  24. Design Proposal: CAD Drawings

  25. Design Proposal: CAD Drawings

  26. Full Assembly

  27. Full Assembly

  28. Design Proposal: Bill of Materials

  29. Bill of Materials

  30. Styrofoam Brand Foam Block • Squirrel Cage Blowers • 9 Volt Battery • Hot Wire Cutter • PPK2 Weather Resistant Fabric • Fix-All Adhesive Design Proposal: Build Process

  31. Test Plans • Size Specifications • Time to Achieve Liftoff • Hovering Capability • Durability • Propulsion System • Acceleration • Average Speed • Average Velocity • Stopping Distance Design Proposal: Test Plan

  32. Vehicle Specifications • Vehicle Size • Met Criteria? • Multiple Testers • Hovercraft Board • Data Table Design Proposal: Test Plan

  33. Hovering Capability • Weight • Liftoff Ability • Hovering Ability • Constant Power • Consistent Results Design Proposal: Test Plan

  34. Time to Achieve Liftoff • Hovercraft with all parts • Weight of Vehicle • Electric power needed • Consistent results Design Proposal: Test Plan

  35. Durability • Function • Aesthetic • Scale of 1-5 • Multiple Trials Design Proposal: Test Plan

  36. Propulsion System • Acceleration • Average Speed • Average Velocity • Stopping Distance Design Proposal: Test Plan

  37. Acceleration • Distance • Time • Propulsion System • Calculations Design Proposal: Test Plan

  38. Average Speed & Average Velocity • Propulsion • Lifting Fans • Set course for test • Time for course completion • Calculations Design Proposal: Test Plan

  39. Stopping Distance • Propulsion • Maximum speed • Run on a course • Cut Power • Measurements • Data Collection Design Proposal: Test Plan

  40. Prototype

  41. Prototype Problems • Motor Burned out • Receiver Malfunction • Controller Malfunction • Propulsion System Failed Prototype Problems

  42. Refined Design • Motor & Propeller system • New Propulsion propeller • New Propulsion motor • Fan Cage System • Gator Boat Idea Refinements

  43. Final Prototype

  44. Stronger Motor for Propulsion • Speed Control • Lighter Battery • Stronger Lift Room for Improvement

  45. Project incorporated numerous science and math principles. • We learned the important concept of Build Process & Prototype Design • There are numerous problems and challenges that we encountered that we had to adapt to. Lessons Learned

  46. HoverCraft • Air-cushioned vehicle that can travel over surface horizontally. • Total Cost: • Light Weight • Lots of Calculations Conclusion

  47. Video

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