1. DR2 Aerodynamic PDR Aerodynamic Preliminary Design Review October 3, 2000 German National Holiday Presented By: Loren Garrison Team DR2 Chris Curtis Chris Peters Jeff Rodrian Mark Blanton

2. DR2 Aerodynamics PDR Airfoil Selection Procedure - Create an airfoil database - Based on experimental data from the NASG website - Reynolds Numbers of 100,000 and 150,000 - C l max of at least 1.35 - Refine Database - Based lift curves and drag polars - Selected three airfoils - Determine final airfoil - Based on lift curve, drag polar and endurance parameter

3. DR2 Aerodynamics PDR Lift Curves of Possible Airfoils

4. DR2 Aerodynamics PDR Drag Polars of Possible Airfoils

5. DR2 Aerodynamics PDR Lift Curves of Possible Airfoils

6. DR2 Aerodynamics PDR Drag Polars of Possible Airfoils

7. DR2 Aerodynamics PDR Endurance Parameters of Possible Airfoils

8. DR2 Aerodynamics PDR Wing Geometry - Airfoil:S 1210 - Taper Ratio:0.7 - Dihedral Angle:0 (deg) - Sweep Angle:0 (deg) - Aspect Ratio:8 - Span:7.68 (ft) - Root Chord:1.13 (ft) - Tip Chord:0.79 (ft) - Planform Area:14.7 (ft 2 ) - Wetted Area:29.4 (ft 2 )

9. DR2 Aerodynamics PDR Horizontal Tail Geometry - Airfoil:Flat Plate - Taper Ratio:0.75 - Dihedral Angle:0 (deg) - Sweep Angle:4.0 (deg) - Aspect Ratio:4 - Span:2.86 (ft) - Root Chord:0.82 (ft) - Tip Chord:0.61 (ft) - Planform Area:2.04 (ft 2 ) - Wetted Area:4.17 (ft 2 )

10. DR2 Aerodynamics PDR Vertical Tail Geometry - Airfoil:Flat Plate - Taper Ratio:0.6 - Dihedral Angle:0 (deg) - Sweep Angle:9.53 (deg) - Aspect Ratio:1.4 - Span:1.35 (ft) - Root Chord:1.29 (ft) - Tip Chord:0.72 (ft) - Planform Area:1.29 (ft 2 ) - Wetted Area:2.64 (ft 2 )

11. DR2 Aerodynamic PDR

12. DR2 Aerodynamics PDR 3-D Lift Curve

13. DR2 Aerodynamics PDR 3-D Lift Curve

14. DR2 Aerodynamics PDR 3-D Lift Curve

15. DR2 Aerodynamics PDR 3-D Lift Curve for the Aircraft

16. DR2 Aerodynamics PDR 3-D Drag Polar for the Aircraft

17. DR2 Aerodynamics PDR 3-D L/D Curve for the Aircraft

18. DR2 Aerodynamics PDR 3-D Endurance Parameter for the Aircraft