This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Lab 2 – Wind Tunnel Testing a 3-D Wings Unified Engineering Due Friday, 24 Feb 06, 5PM Learning Objectives • Measure lift, drag, moment from load cell data, using reference-axis conversions • Perform lift and drag predictions for a 3-D wing, and compare to measurements Secondary Objectives, for Flight Competition Project • Get familiar with performance parameters for 3-D wings Experimental Rig • Test Articles: Dragonﬂy wing and Aegea RC glider wing in WBWT • Instrumentation: – Tunnel’s pitot-static probe – Wing load cell • Wing parameters: y x c c Dragonﬂy wing S = 448 in 2 area b = 47 in span ref = 10 in reference chord avg = 9 . 5 in average chord e = 0 . 95 span eﬃciency, estimated o = 4 . 0 in load cell location o = − 2 . 0 in load cell location y x c c Aegea wing S = 490 in 2 area b = 78 . 5 in span ref = 7 . 5 in reference chord avg = 6 . 25 in average chord e = 0 . 97 span eﬃciency, estimated o = 2 . 7 in load cell location o = − 2 . 5 in load cell location...
View Full Document
- Fall '05
- Aerodynamics, in2, load cell, CREF