Transcript Group 13 Heavy Lift Cargo Plane Richard-Marc Hernandez Yoosuk Kee

Group 13
Heavy Lift Cargo Plane
Richard-Marc Hernandez
Yoosuk Kee
Stephen McNulty
Jessica Pisano
Chi Yan
Project Advisor: Siva Thangam
Objectives
 The plane to be flight capable
 The plane to carry 2-3 times its own weight
 The plane meets the specifications of the 2004
SAE Aero Design East competition
 To finish the design of the plane by December and
begin construction and testing in January
 To compete well at competition and improve
Stevens reputation
 For the team to improve and expand their
knowledge of the design and construction of
airplanes
 To stay within the parameters of the budget that is
set by the team
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Team Dynamics
 Five members
 High level of commitment and motivation
 Team divided into 2 smaller groups for more
efficient use of time
 Smaller teams research separate parts of plane
 Team meets as a whole weekly to discuss
research results
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Advisor Meetings
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Project Advisor: Siva Thangam
At least once a week
Offers guidance from experience
Teaches team some of the knowledge not yet
learned
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Schedule
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Journal/Progress
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Detailed journal kept weekly for our group
Updates on work done by smaller groups kept
Advisor meetings kept in journal
Our group is fairly on track according to our Gantt
Chart and proposed progress
 Our advisor feels that we are ahead of where
previous groups were at this stage
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Deliverables
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An airplane design
Budget for the prototype
Detailed calculations
CAD drawings
Various analyses of the design
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Purpose
 Individual member interest -- career or hobby
oriented
 Expand knowledge, and experience with the
design and manufacture of airplanes
 To compete against other colleges and universities
 To get exposure to students at other schools and
their approach to the engineering design process
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Major Problems
 Building the selected design
 Lack of experience to correct problems that arise
 Building as early as possible to have time to
correct problems that arise
 Conforming to ALL specifications of the
competition
 Designing sturdy landing gear to withstand many
test runs
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Budget
Item
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Est. Cost
SAE Membership
SAE Registration
$50.00
$300.00
Balsa Wood
Plywood
Motor
R/C Controller
Propeller
Tires/Axle
Batteries
Servos
Push Rods
MonoKote
Fuel Tank
Misc.
$10.00
$30.00
$120.00
$200.00
$15.00
$25.00
$15.00
$45.00
$10.00
$30.00
$5.00
$100.00
Total
$855.00
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Approach
 Understand rules and regulations of competition
 Breakdown plane into smaller components
– Airfoils
– Wing shape
– Tail stabilizer
– Landing gear
– Fuselage
– Control Surface
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Approach (cont.)
 Construction of aircraft
 Test
– Make small adjustment to enhance performance
 Fly aircraft
 Attend competition and compete well among other
schools
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Competition Specs
 Last year’s competition
– Take-off within 200ft
– Land safely within 400ft
– Total wingspan cannot exceed 6ft
– Planform area cannot exceed 1200in2
– Dimensions of the payload support must be built
with a minimum volume of 300in3
– Engine will be provided by the event organizers
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Disciplines Used
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Fluids
Dynamics
Control Systems
Statics
Mechanics
Physics
Calculus
Engineering Economics
Machine Shop
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Conceptual Designs
•Ideal for flight at slow
speeds
•Minimum drag for a given
aspect ratio (5.1)
•Difficult to construct
•Stall characteristics are not
as favorable as a rectangular
wing
Wing Elliptical
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Conceptual Designs (cont.)
Wing Rectangular Dihedral
Wing Rectangular
•Not as efficient as elliptical
wing
•Stalls first at the wing root
•Provides stall warning
•Greater aileron control
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Conceptual Designs (cont.)
•Decrease in drag
•Increase in lift (most effective at high speeds)
•Highly tapered wing stalls first slightly inboard
of the wingtip
•Combination of both rectangular and tapered
configurations better for low-speed aircraft
•The rectangular inboard section provides good
stall characteristics and is cost effective
•The tapered outboard portion decreases
weight and increases aspect ratio
Wing Tapered
Wing Tapered Dihedral
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Questions?
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