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Presentation OverviewMission ObjectiveBaseline DesignAircraft ProgressionDesign StrategiesConstruction StrategiesProject Timeline. Project Proposal. . Mission ObjectiveDesign
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1. F3A Pattern World Championships Design Project Proposal AAE 490T/590T
February 9, 2001
John Castro
Loren Garrison
Chris Peters
Jeff Rodrian
Thomas Schmidt-Lange
2. Presentation Overview
Mission Objective
Baseline Design
Aircraft Progression
Design Strategies
Construction Strategies
Project Timeline Project Proposal
3. Mission Objective
Design & Construct an F3A Pattern Aircraft for use in the 2001 World Championships
Replace Existing 1997 Design to adapt Pattern Evolution
Tailor Aircraft to the Flying Abilities and Style of the Pilot, Jose Melville
Shift Design from Typical Pattern Style to IMAC Style Project Proposal
4. F3A Competition Constraints
Pre-set pattern which changes yearly
Size Constraint
2 meter maximum length
2 meter maximum wingspan
Project Proposal
5. Fixed Parameters
Power Plant (YS 140 Limited)
Exhaust Pipe
Fuel Weight
Avionics
Accessories
Project Proposal
6. Baseline Model � �Wild Beat�
Designed for past pattern maneuver style
Customer desires a plane with
Better snap characteristics,
Constant velocity during the entire pattern
Better pitch authority Project Proposal
7. Pattern Aircraft Evolution
Increase in overall size of the aircraft
Trends in Design Style Changes towards IMAC Designs
Wider Fuselages
Shorter distance between wing and horizontal tail
HT/wing and control/lifting surface area ratio Project Proposal
8. Concentrate on Design by Empirical Data
Use Engineering Judgment for Modifications
Primary Design Modifications
Fuselage Size
Width, height, and length
Wing � chord to horizontal tail � chord distance
Vertical and Horizontal Tail Sizes
Overall Weight Project Proposal
9. Design Strategies
Incorporate Existing Design of RC and Full-Size World
Estimate maximum loads
Compare material and construction methods
Matlab� Code developed for weight estimates
Combine with structural evaluation code
Manufacturing techniques and possibilities
Design internal layout
�Machine-to-Fit� approach
3D-CAD Systems Integration
Design engine/wing attachment
Project Proposal
10. Construction Strategies
Goal to Produce Precise Parts in Weight and Shape
Traditional Wood Construction
Modern Composite Fabrication Techniques
Developed with AT482 Team
Traditional Techniques in Use for Pattern A/C
Split Part Female Molds (Wing, Fuselage)
Machined Foam/Spar/Fiberglass
Possible New �Seam-Less� Techniques
Aluminum Sheets
Male Molds
Winding Techniques
Project Proposal
11. Examples for Wing Construction
Pros
Cons
Project Proposal
12. Project Timeline Project Proposal