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