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Why this Web Site?
Why Hummingbird?
History in the Making
TECHNOLOGY
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Propulsion Concepts
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Aerodynamics
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Weight and Balance
Propulsion Details
Propellers
Pilot Aids
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APPENDICES
What is Maneuverability?
Duct Myths, Duct Physics
Optimum Configuration?
Lift, Drag, Span Efficiency
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Radio-Controlled Models
The Wespe
Wichita Presentation
Sport Aerobatics Article
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