rc airplane
DESCRIPTION
RC Airplane. Robert Schuld Aakash Soni Alan Strimbu. Table of Contents. Timeline Gantt Chart Problem Statement Background Customer Scope Customer Requirements Deliverables Brainstorming Research Identify Criteria & Constraints Explore Possibilities Pros and Cons - PowerPoint PPT PresentationTRANSCRIPT
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RC Airplane
Robert SchuldAakash SoniAlan Strimbu
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Table of Contents Timeline Gantt Chart Problem Statement Background Customer Scope Customer Requirements Deliverables Brainstorming Research Identify Criteria & Constraints Explore Possibilities Pros and Cons Select an Approach CAD Bill of Material Build Process Test Criteria Test Plan Prototype Test Results Lessons Learned Summary
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Timeline
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Gantt
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Problem Statement
Students lack proficiency in Engineering
By creating an RC airplane: Gain knowledge Gain experience for college environment
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Background
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Customer
Mr. Pritchard
Mrs. Brandner
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Scope
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Customer Requirements Mr. Pritchard
3 tests on 3 different materials Strength test on material/prototype
Mrs. Brandner Complex calculations using physics and calculus Submit engineering notebook
Additional Must fit in technology room Must be tested outside school property
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Deliverables
Mr. Pritchard RC Airplane prototype Final Report Design Notebook(s) Powerpoint Presentation
Mrs. Brandner Calculations
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Brainstorming
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Research
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Identify Criteria & Constraints
Criteria Applications of Calculus
Calculations for d(t), v(t), a(t) Calculations for lift force Calculations for engine torque Calculations for thrust Calculations for types of materials Optimization with different materials and
structures Submit engineering notebooks
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Identify Criteria & Constraints Criteria
Applications of Technology Application of the 12 step design process
Testing procedures for different types of materials and their strengths
Submit final report and Power Point
Submit airplane prototype
Submit CAD drawings
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Identify Criteria & Constraints
Criteria Control Panels Flying tests must be outside school
property Constraints
Must fit inside technology room 3 ft. wingspan for detail, but not too
large
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Explore Possibilities
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Pros and Cons
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Select an Approach
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CAD
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Bill of MaterialPART PART DESCRIPTION COST PER UNIT QUANTITY TOTAL COST
Power 15 Brushless Outrunner Motor
950 Kv, 575 Watts $79.99 1 $79.99
3-channel controller Hitec Neon SS 72 MHz
$67.99 1 $67.99
Landing Gear Elite Mini UltraStick $12.95 1 $12.95
Servos HS-311 6.0 Volt $11.99 2 $23.98
Carbon fiber tube 0.210” outer diam. x 0.132” inner diam. x 40”
$7.99 1 $7.99
EPS Foam ¾” x 14 ½” x 48” $9.49 1 $9.49
Propeller Speed 400, 5.25 x 6.25 $2.13 1 $2.13
Pushrods Fiberglass $8.95 2 $17.90
Balsa Wood ¼” x 36” $0.89 2 $1.78
TOTAL COST $224.20
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Build Process
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Test Criteria
Test Criteria for Prototype Safety Functionality (in air/on ground) Ease of use Aerodynamics Velocity Weight/Size Strength
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Test Criteria
Test Criteria for Materials Foam
Strength Safety Compression/Tension Flexibility Weatherability (ability to withstand outdoor
conditions)
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Test Criteria Test Criteria for Materials
Adhesive Weatherability Holding strength Drying time
Motor/Propeller Thrust Torque Voltage (if necessary) Weatherability Weight/Size Functionality
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Test PlanTest Criteria How Tested Expected results Actual Results
Overall Plane Aerodynamics Look at the overall body of the plane and determine if any parts of the plane will decrease aerodynamics.
The plane will have sound aerodynamics and will have minimal drag.
Functionality Move all surfaces (rudder, elevators) and check for responsiveness.
All motorized parts of the plan will respond well.
Safety Check if the plane flies consistently in the air and doesn’t wobble.
The plane will be safe and won’t wobble.
Strength Hang weights on the wings and see if the flex too much or break. Put weights on other critical structures of the plane.
The plane will be able to support the weight and will not fracture.
Velocity While in the air, look at distance/time to determine the speed.
The velocity will be high enough to sustain flight.
Weight/Size Measure the overall plane’s dimensions. Put the whole plane on a scale.
Plane’s weight will be in proportion to its size.
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Prototype
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Test Results
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Lessons Learned
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Summary