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Design and Implementation of a Single-Manned Hovercraft Caitlin Del Zotto Keith Gooberman Matthew Mayerhofer Noah Weichselbaum Senior Project Advisor:

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Presentation on theme: "Design and Implementation of a Single-Manned Hovercraft Caitlin Del Zotto Keith Gooberman Matthew Mayerhofer Noah Weichselbaum Senior Project Advisor:"— Presentation transcript:

1 Design and Implementation of a Single-Manned Hovercraft Caitlin Del Zotto Keith Gooberman Matthew Mayerhofer Noah Weichselbaum Senior Project Advisor: Professor William Keat

2 Presentation Outline  Hovercraft background  Design objective  Design requirements  Safety requirements  Alternative design concepts  Final concept design  summary

3 Hovercraft Background  First invented in 1956-Christopher Cockerell  Vehicle supported by a cushion of air Can travel over any surface  More efficient than boats Less drag, lower HP, higher efficiency

4 Hovercraft Background  Recreational Uses Cruising, Fishing Family, Diving Transportation, Hunting  Commercial Uses Patrol Ice – Flood Rescue Airport Rescue Military Over Water Tours Water Taxi Ferry Service River Rescue Ice Breaking Conservation Farming Camera Craft Ice Fishing Fishing Tours Transport

5 Design Objectives and Design Requirements  Hovercraft must be able to transport one individual  Must ride on cushion of air  Needs to be able to travel over grass, concrete, dirt, ice/snow, and water  Goal is to defeat Ian Keat through obstacle course designed by William Keat

6 Safety Requirements  Must be build to prevent rollover  No sharp edges  Driver must wear helmet and earplugs  Kill switch must be installed  Must be able to float  Needs to be able to stop relatively quickly  Driver needs some type of seatbelt

7 Alternative Design Concepts  LIFT AND THRUST CONCEPTS Splitter System vs. Two Single Systems  Cost/Benefit  SKIRT Bag, Finger or Jupe  Cost/Benefit

8 Alternative Design Concepts  STEERING Rotating Fan vs. Rudders  Cost/Benefit  LIFT AIRFLOW Ducted Hull vs. Free Flow  Cost/Benefit

9 Final Design

10 Detailed Design

11 Detailed Design (continued)

12 Stress/Deformation Analysis  Loads:  Lift motor – 57lbs  Lift fan -4lbs  Thrust motor – 87lbs  Thrust fan - 8lbs  Person – 200lbs

13 Stress Analysis – lift fan fixed

14 Stress Analysis – person fixed

15 Calculations Hull Hover Pressure: * Many preliminary calculations we made using an online calculator:

16 Calculations Simulation data from: Inputs: Hull Width (5’) Hull Length (10’) Gross Weight (800lbs) Hover Height (air gap) CALCULATION STAGE 1 – Lift requirements Air Gap(in) Lift Perimter (ft)27 Hover Gap (ft²) Cushion Area (ft²)45 Cushion Pressure (lbs/in²)0.123 Cushion Pressure (atm) Air Velocity (ft/sec)73.8 Lift Air Volume (CFM) Lift Air Volume (CFS) Engine HP Fan Diameter (in) CALCULATION STAGE 2 - Lift Fan Engine RPM3060 # of Blades5555 Blade width [mid] Blade Width [base] Blade Width [tip] Tip Speed (ft/sec)

17 Budget  Lift Engine  Thrust Engine  Lift Fan  Thrust Fan  Skirt  Build Your Own HoverTrek Video  4 Sheets of 1/8” Plywood  Skirt Glue/Screws  Steering Cable  Fiberglass Hull Material Total Hovercraft Budget

18 Summary

19 Winter Term


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