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1.6 A rectangular wing weighs 5.0 lb. It has a span of 12 in. and a chord of 25 in. The wing is attached to one end of a slender rod 10 ft long, which is free to pivot at the other end as shown in the figure. The apparatus is placed in a wind tunnel at the University of Denver (the "mile-high" city). The Cr curve for the wing corresponds to the curve labeled "HIGH ASPECT RATIO- SYMMETRICAL" in Figure 1.8. What must the airspeed be in the test section for the wing to operate at its maximum lift coefficient? 1 10 -V Y W = 5 lb