i believe i can’t fly! team 1: on wings like a penguin
TRANSCRIPT
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I Believe I Can’t Fly!
Team 1: On Wings Like A Penguin
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Team Members
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Phil Baah-Sackey, Joe Englin, Chris Lowell, Eu Sung Chung
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Problem
• There are some situations where neither aquatic vehicles nor land vehicles can access certain locations.
• In these situations an amphibious vehicle that travelled above the surface could reach these locations.
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Christian Faith Concerns
• Build a safe product, no exposed motors, guarded propeller blades
• Build a reliable product, durable materials, parts don’t need to be replaced often
• Build an efficient product, high fuel economy
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Project
• Design a two person hovercraft – roughly 400 lbs excess weight.
• Attain speeds of at least 25 mph.• No specific customers, but various
applications where a hovercraft would be ideal.
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Design
• Skirt with air splitter• Use two motors• Triangular shape• Dimensions – 10’ x 6’• Mainly foam and plywood
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Initial Design
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Alternative Solutions
• Skirt with holes• Only one motor• Rectangular design• Materials/construction method
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Obstacles
• How to balance the craft (air distribution)
• Throttle and rudder controls• Working with unfamiliar materials• Motor selection/sourcing
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Accomplishments
• Determined rough dimensions• Estimates of required thrust and lift• Constructed a model
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The End
Questions?
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How Does A Hover Craft Work?
• A hovercraft (or Air Cushion Vehicle) uses pressure differentials to lift itself off of the ground.
Image Copyright www.antonine-education.co.uk
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How Does a Hovercraft Turn?
• A hovercraft turns similarly to a boat. They typically use a pair of rudders mounted behind the thrust duct to control direction.
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How Does a Hovercraft Stop?
• Hovercrafts can slow down easily because of aerodynamic drag
• Methods of stopping quickly are typically rotating the hovercraft 180 degrees (in small commercial applications), or having a transmission with a reverse gear in large applications.
• For cost reasons ours will be the first.
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How Does a Hovercraft Stay Level?
• In order to balance properly, a hovercraft has to be well designed.
• The weight distribution must be even across the craft.
• Typically this means either passenger relocation, or a series of movable weights. Our design will more than likely be the first.
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What Is the Skirt?
• The skirt is an inflatable tube underneath the hovercraft the keeps the high pressure air underneath the craft, in order to lift it.
• Skirts are made of durable rubberized materials, they are a hovercrafts “tires”
• The skirt is inflated, in our design, by ducting air into it from the lift fan.
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Hull Design
• The hull itself will be made primarily of foam, bonded together and cut to our crafts shape.
• The outside of the hull, on the top of the craft will be covered in fiberglass, and painted so that it is not only smooth, but aesthetically pleasing.
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Propellers
• We intend to construct both of our propellers ourselves.
• We will bond wood boards together and then cut/sand them to our final design, based on thrust/lift requirement calculations.
Team 1: On Wings Like A Penguin