1. Ashley Brawner Matt Negilski Neal Datta Mike Palumbo Jesse Jones Chris Selby Xing Huang Tara Trafton Team Concept Selection

2. Top View

3. Front and Side Views

4. 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

5. Wing Shape Quasi-elliptic planform for decreased induced drag Ease of analysis and manufacturablility Structural integrity Mid-span dihedral FrontBack

6. 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

7. 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

8. 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]

9. Key Technical Requirements  High-speed flight  Economic loiter and cruise  45 degree climb angle  10 degree descent angle  No landing gear exposed in flight