team 1: on wings like a penguin engineering 339 – senior design
TRANSCRIPT
TEAM 1: ON WINGS LIKE A PENGUIN
ENGINEERING 339 – SENIOR DESIGN
• Build an amphibious air cushion vehicle• Should seat two passengers• Two engines: one for thrust, another for
lift.• Approximately 12 x 6 ft, triangular shape• Lift engine will duct air into skirt using air
splitters
Project Description
Design Requirements
• Approximately 6.5 horsepower lift engine• Approximately 13 horsepower thrust engine• 26 inch diameter lift fan• 48 inch diameter thrust propeller• Hull will be constructed of extruded polystyrene
foam and marine plywood• Fiberglass coating on outer hull and ducts• Cable-controlled throttle• Be able to support 400 pound payload
Budget Analysis
COST ESTIMATION - bold signifies a verified price
Item Size Quantity Low Price High Price
Horizontal engine 13 HP 1 $300.00 $345.00
Vertical engine 6.5 HP 1 $0.00 $160.00
XPS foam 2" x 4' x 8' 6 $103.74 $126.00
XPS foam 1" x 4' x 8' 1 $9.88 $15.72
Marine plywood 1/8" x 4' x 8' 6 $160.80 $176.10
Epoxy kit 1.0 gallons 2 $175.98 $240.00
Fiberglass cloth (6 oz) 38" x 1 yd 10 $50.00 $91.90
Skirt (18 oz vinyl nylon) 60" x 1 yd 8 $79.60 $103.60
Skirt screws 3/4" 300 $8.95 $12.95
Skirt glue HH-66 1 pint 1 $14.95 $16.95
Spray can foam 12 oz 4 $22.40 $23.40
Thrust propeller 48" - 17° 1 $38.58 $268.95
Lift fan 26" - 16° 1 $25.72 $258.95
Other materials N/A $250.00 $350.00
TOTALS $1040.60 $2139.52
Schedule September October November December
WEEK 1 2 3 4 1 2 3 4 1 2 3 4 1 2
Form team
Determine project
Initial project research
Project objectives defined
PPFS Outline - Table of Contents
Oral presentation
In-depth design analysis
Project website and sign
Material sourcing and cost estimation
Project brief
Determine final specifications
Complete Autodesk model
Finalize budget
Draft PPFS
Oral presentation
Final PPFS
Current Phase
• Defining budget (with contingencies)• Sourcing materials• Determining thrust propeller and lift
fan specifications• Working on Autodesk model
Questions?
Lift Fan Design
• 26 in. fan diameter• Four blade design• Constructed out of three 1 in. thick
pine boards• Blades with varied “angle of attack”
for maximum efficiency
Lift Fan Angle of Attack
Thrust Propeller Design
• 48 in. propeller diameter• Two blade design• Constructed out of five 1 in. thick
pine boards• Blades with varied “angle of attack”
for maximum efficiency• Analyzed to confirm ideal operation
Propeller Analysis
Propeller Angle of Attack
Craft Balance Issues
• Center of gravity will be determined using Autodesk Inventor
• Components will be placed strategically to balance craft
• Weights will be added for static balance if necessary
Duct Construction
• Thrust duct will be constructed by cutting polystyrene sheets at a large radius
• Duct will then be wrapped and glued into final shape, and sanded
• Lift duct will be built into hull, using marine plywood