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Published byAmberly Heath Modified over 9 years ago
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Ashley Brawner Matt Negilski Neal Datta Mike Palumbo Jesse Jones Chris Selby Xing Huang Tara Trafton Team Concept Selection
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Top View
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Front and Side Views
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Ducted Fan PROS More efficient than comparable propeller Customer interest Improved safety Quieter Enables hand launch/belly landing CONS Cost Motor constraint Duct weight Duct design Accessibility
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Wing Shape Quasi-elliptic planform for decreased induced drag Ease of analysis and manufacturablility Structural integrity Mid-span dihedral FrontBack
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Control Surfaces Dual-boom mounted tail Broad, elevated configuration Removes tail from direct fanwash Flapperons Reduces weight and mechanical complexity http://en.wikipedia.org/wiki/Image:Sea.vixen.flying.arp.jpg
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Ground Interface Advantages Hand launch Inexpensive Reduces weight Increased versatility of sites No drag from gear Potential Issues Durability Crash Issues Hand Launch/Belly Landing
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Table of Physical Properties Assumptions Cl max 1.2-1.6 η fan 80% C d0 0.01-0.04 L/D6-14 V stall 30 [ft/sec] Calculations from Assumptions W/hp2.5-3 W/S1.2-1.4 Weight~4.5 [lbs] S3.2 [ft 2 ] P1.5 [hp]
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Key Technical Requirements High-speed flight Economic loiter and cruise 45 degree climb angle 10 degree descent angle No landing gear exposed in flight
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