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Team 6: “Soldier Portable UAV” David Neira TJ Worden Matthew Martin Joshua Mellen Ona Okonkwo

A IR HERCULES. and. adio. ltra. ight. ystem. jected. ontrolled. lectronic. Team 6: “Soldier Portable UAV” David Neira TJ Worden Matthew Martin Joshua Mellen Ona Okonkwo Josiah Shearon. Project Overview. Develop a UAV to compete in the 2011 AIAA Design/Build/Fly Competition

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Team 6: “Soldier Portable UAV” David Neira TJ Worden Matthew Martin Joshua Mellen Ona Okonkwo

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  1. AIRHERCULES and adio ltra ight ystem jected ontrolled lectronic • Team 6: “Soldier Portable UAV” • David Neira • TJ Worden • Matthew Martin • Joshua Mellen • Ona Okonkwo • Josiah Shearon

  2. Project Overview • Develop a UAV to compete in the 2011 AIAA Design/Build/Fly Competition • Location: Tucson, AZ • Date: April 15-17, 2011 • Primary requirements: • Assembly • Hand launched • Design Limitations • Power/Electronics • Sizing • Configuration

  3. Mission Profile • Mission 1: Dash to Critical Target • Maximum laps in 4 minutes • Mission 2: Ammo Re-supply • 3 laps with steel bar payload • Mission 3: Medical supply Mission • 3 laps with golf ball payload

  4. Overall Scoring Equation

  5. Faculty Advisors Dr. Chiang Shih Dr. Joe Yeol Project Lead Matthew Martin (ME) Aerodynamics TJ Worden (ME) Propulsion David Neira (ME) Electronics/Control Joshua Mellen (EE) Onachukwu Okonkwo (EE) Materials/Fabrication Josiah Shearon (ME) Aerodynamics Eric Sloan Walker Carr Propulsion Myles Bean John Edgar Electronics/Control Ricardo Ascencio Materials/Fabrication Ryan Jantzen Project Management

  6. Project Schedule

  7. Conceptual Design Phase • Design Process • Scoring Analysis • Product Specifications • Aircraft Configuration

  8. Subsystem Development • Propulsion / Control Systems • Aerodynamics • Materials / Fabrication

  9. Propulsion / Control Systems • Competition Requirement: • 20 Amp maximum draw • ¾ lb. maximum battery weight • Separate propulsion and control system • Research/Analyze Major Components • Batteries • Motor / ESC • Propeller • Transmitter / Receiver • Servos

  10. Propulsion / Control Systems

  11. Propulsion / Control Selection

  12. Aerodynamics • Wing • Airfoil comparisons • Wing sizing tradeoffs • Stability • Control surface sizing • Empennage sizing • Fuselage • Streamlining

  13. Aerodynamics

  14. Airfoil Selection Main Wing: Eppler 422 Tail Wing: NACA 0012

  15. Aerodynamics Initial Sizing

  16. Materials & Structures • Property Comparison • Weight • Strength • Stiffness • Considered Materials • Wood – Balsa, Bass, Plywood • Carbon Fiber / Composites • High Density Foam • Adhesive

  17. Materials Selection • Primary structures • Wing spar • Uni-directional 1k CFRP/foam • Wing ribs • Balsa wood & aircraft ply • Bulkhead • CFRP & balsa ply • Upper & lower spine • CFRP • Nose & tail fairing • Single ply 1k plain weave CFRP

  18. Final Design • Flight Testing • Hand Launch • Control Handling • Flight Endurance • Payload Testing • Landing Performance • System Integration • Ground Testing • Assembly Time • Propulsion and Controls • Structural Integrity

  19. Aircraft Specifications

  20. M2: Steel Bar Configuration

  21. M3: Golf Ball Configuration

  22. Payload configurations Mission 3: Golf Ball Storage Qty: 16 Mission 2: Steel Bar Storage

  23. Electronics Layout

  24. System Component Breakdown

  25. Assembly Demonstration Disassembled Aircraft Suitcase Configuration

  26. Competition Risk Assessment • Potential Risks • Harsh landing / propeller-ground interference • High wind speed • Inexperienced pilot • Prototype • Novice aircraft designers / builders • Robust 1st design: Over-engineered • Multiple flight tests • Final Design • Much lighter, competitive design • Component supply redundancy • Recruited professional pilot

  27. Flight Demonstration • Video

  28. Questions?

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