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ORION AEROSPACE Biplane Concept Preliminary Sizing

Explore biplane configuration with square fuselage, rectangular wings, and conventional swept tail. Pros and cons of each concept analyzed for ease of construction, aerodynamics, and equipment storage. Historical data used for weight estimation and drag model development.

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ORION AEROSPACE Biplane Concept Preliminary Sizing

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  1. ORION AEROSPACE Preliminary Sizing PDR 26 September, 2000 Patrick Dempsey Bridget Fitzpatrick Heather Garber Keith Hout Jong Soo Mok

  2. Team ConceptBiplane Configuration ORION AEROSPACE  Square Fuselage  Rectangular WingsConventional Swept Tail Tail Dragger

  3. ORION AEROSPACE Aircraft Specifications

  4. ORION AEROSPACE Equipment Storage Equipment Volume(in3) Gear box 3 x 1.5 x 1 Motor 2.25 x 1.5 Speed Controller1.5 x 1.25 x 1 Receiver 1.75 x 1.25 x 0.75 Gyro 1.5 x 1.25 x 1.25 Data Recorder 1.75 x 2.25 x 3.25 Battery(20) 2 x 1 x 1 Servo 1.5 x 1.25 x 0.75 Interface 1.25 x 3.5 x 5.75

  5. ORION AEROSPACE Equipment Storage

  6. Biplane Pros: Cons: ORION AEROSPACE Concept Description Biplane Configuration Pros: Cons: ---------------------------------------------------------------------------------------------------- Shorter Wing Span Wing Interference Increase Turn Clearance Accessibility of Equipment Increase Roll Rate Maneuverability Transporting Less Need For High Lift Devices Decalage Provides Natural Stall Recovery Less Need For High Lift Devices Induced Drag Decalage Provides Natural Stall Recovery Accessibility of Equipment

  7. ORION AEROSPACE Concept Description Square Fuselage Pros: Cons: ---------------------------------------------------------------------------------------------------- Ease of Construction Aerodynamics Strong Bending Weak Twisting Equipment Storage Rectangular Wing ---------------------------------------------------------------------------------------------------- Ease of Construction Aerodynamics

  8. ORION AEROSPACE Concept Description Conventional Swept Tail Pros: Cons: ---------------------------------------------------------------------------------------------------- Stalls at High Angles of Attack  Construction Tail Dragging Landing Gear ---------------------------------------------------------------------------------------------------- • No Extra Control System Necessary For Nose Gear

  9. ORION AEROSPACE SIZING and WEIGHT ESTIMATION METHOD -Set motor weight and properties -Set flight parameters -Use historical data to calculate initial Wto -Iterate to obtain wing area and Wto -Use S and Wto to build drag model -Use drag model to evaluate energy (each stage) -Find new battery weight based on energy required -Re-iterate S and Wto until values converge

  10. ORION AEROSPACE HISTORICAL DATABASES

  11. ORION AEROSPACE Constraint Equation Endurance take derivative and set =0.

  12. ORION AEROSPACE Constraint Equation Rate Of Climb

  13. ORION AEROSPACE Constraint Equation Turning (Thrust)(Velocity)=Power

  14. ORION AEROSPACE Constraint Equation V-Stall Lift~Weight

  15. ORION AEROSPACE Constraint Equation Cruise

  16. ORION AEROSPACE Constraint Equation Take Off

  17. ORION AEROSPACE Constraint Diagram

  18. ORION AEROSPACE Questions?

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