THE INTERFERENCE EFFECTS OF A BODY ON THE SPAN WISE LOAD DISTRIBUTIONS OF TWO 45° SWEPTBACK WINGS OF ASPECT RATIO 8.02 FROM LOW-SPEED TESTS

摘要

Tests of two wing-body combinations have been conducted in the Langley 19-foot pressure tunnel at a Reynolds number of 4 x106 and a Mach number of 0.19 to determine the effects of the bodies on the wing span load distributions. The wings had 45 sweepback of the quarter chord line, aspect ratio 8.02, taper ratio 0.45 and incorporated 12-percent-thick airfoil sections stream wise One wing was untwisted and uncambered whereas the second wing incorporated both twist and camber. Identical bodies of revolution, of 10:1 fineness ratio, having diameter to-span ratios of 0.10, were mounted in mid-high-wing arrangements. The effects of wing incidence, wing fences, and flap deflection were determined for the plane uncambered wing.