aae490t_pres1

aae490t_pres1 - Mission • Design and build 2 Micro-Air...

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Unformatted text preview: Mission • Design and build 2 Micro-Air Vehicle for endurance of 1 hour. • Either ICE or electric power propellers will be used. Preliminary Design Specifications • Take-off weight - 5oz. • Cruise velocity - 25 mph. • 6” by 6”. • S5010 airfoil section will be used for both wing and tail design. Sketch of the vehicle Front View Side View Plane View Ratio of Cl α of wing to tail for Cm α =0 Dimensional Analysis of ) ( 2 2 / 1 2 2 / 1 1 2 / 3--- = W W S C C c E D L prop ρ η Endurance Equation • η/ c [=] Hp*Hr/lb • ( ρ S/2) 1/2 [=] (slug/ft) 1/2 • (W 1-1/2 – W 2-1/2 ) [=] (lb)-1/2 = (slug*ft/s 2 )-1/2 • (2) and (3) become [=] s/ft • (1) can be converted to [=] ft-1 • Thus (4) and (5) become [=] sec Values Used in Range Equation η prop = 0.5 C = 8 lb/(hp*hr) = 4.04 * 10-6 (ft-1 ) C L = 0.8 C D = 0.2 ρ = 0.0023769 (slug/ft 3 ) S = 0.2639 (ft 2 ) W 2 = 5 oz = 0.3125 (lb) What About W 1 ?...
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aae490t_pres1 - Mission • Design and build 2 Micro-Air...

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