Huebsch_L_prst

Huebsch_L_prst - 1 wing of no bends Total of about 12...

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Sailplane Planform Design AAE 415 12-13-03 Lou Huebsch
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Overview Background Objectives Baseline Process Results Conclusions
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Background Purdue Condor by Andrew Peters & Stephen Hanna 12-15-2000 Their final results = bent wing Design based off of Discus-2 Competition Sailplane
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Objectives What bend angles are best?
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Baselines Same span wise bend locations 2/3 span and 5/6 span Taper ratio of 0.3 Wortman FX67K170 Airfoil Zero Angle of Attack
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Process Cmarc Analysis Filter Process 1 group of two bends 1 group of 1 bend
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Unformatted text preview: 1 wing of no bends Total of about 12 models Results Wing 1 Wing 2 Wing 3 Sref 100.7 100.7 100.7 Crank Angle 0 15 45 Half Span 25 24.86 23.84 Cdi 0.00215 0.00277 5 0.00264 6 CD 0.0036 0.0066 0.0063 CL 0.4039 0.4615 0.4407 L/D 112.20 69.92 69.95 Conclusions Plain taper gives best result Highest L/D Lowest Coefficient of Lift Lowest Induced Drag Lowest Overall Drag Future Work Study effects of winglets Create better airfoil Questions?...
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Huebsch_L_prst - 1 wing of no bends Total of about 12...

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