Team 5 Design Concept Selection Trent Lobdell Ross May Maria Mullins Christian Naylor Eamonn Needler Charles Reyzer James Roesch Charles Stangle Nick White

2 AAE 451 – Team 5 January 27, 2005 Outline Concept Elimination Summary of Chosen Concept Strengths and Issues Variations

3 AAE 451 – Team 5 January 27, 2005 Concept 1 -- Eliminated Aft CG Yaw Control Canard Control

4 AAE 451 – Team 5 January 27, 2005 Concept 3 -- Eliminated Lack of customer interest Lack of visual appeal Structural Rigidity

5 AAE 451 – Team 5 January 27, 2005 Concept 2 -- Selected Twin-boom pusher prop Double angled tail Conventional landing gear Diamond Wing

6 AAE 451 – Team 5 January 27, 2005 Aerodynamics Strengths  Propeller will improve separation issues  Wing area provides greater lift Issues  Low Reynolds number (~191000)  Low AR (~3)

7 AAE 451 – Team 5 January 27, 2005 Structure Strengths  Carbon fiber rods  Shorter fuselage Issues  Bending moment  Tail-Strike Protection  Landing Gear

8 AAE 451 – Team 5 January 27, 2005 Dynamics & Control Advantages  Easy to analyze and adjust  Two axis control on tail Potential Issues  CG Near Engine (Aft of AC)  Lifting tail may be necessary  Moment caused from raised engine

9 AAE 451 – Team 5 January 27, 2005 Propulsion Advantages  More air over the tail Issues  Propeller size  Pusher  “Dirty” Air aft of wing

10 AAE 451 – Team 5 January 27, 2005 Manufacturability Strengths  CNC machine adaptability  Large Continuous sections  Booms are simple Issues  Blending the body and the wing  Resource limitations

11 AAE 451 – Team 5 January 27, 2005 Possible Variations Tractor Straight Vertical Tail Single Boom / Fuselage W-tail

12 AAE 451 – Team 5 January 27, 2005 Possible Variations Anhedral Wing Tail Dragger Larger/Wider fuselage

13 AAE 451 – Team 5 January 27, 2005 Future Work Iterate Sizes Weight Guessing Performance Criteria