An investigation has been made, at low subsonic speeds in the Langley 7- by 10-foot transonic tunnel, to determine the effects on the static longitudinal and lateral aerodynamic characteristics of changing body cross-sectional shape from circular to elliptic on a body having a fineness ratio of 10.00 and designed to have low wave drag at hypersonic speeds. Variations in the cross-section horizontal-axis—vertical-axis ratios from 0.40 to 2.50 were investigated, as well as the effects of body camber for the bodies with horizontal-axis—vertical-axis ratios from 1.00 to 2.50.nIncreasing horizontal-axis—vertical-axis ratio indicates that the oval-shaped body of increasing flatness is progressively more efficient in producing lift than the circular-shaped body. The production of drag due to lift is also more efficient for oval-shaped bodies of increasing flatness and results in increased maximum lift-drag ratio as horizontal-axis—vertical-axis ratio is increased.
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