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首页> 美国政府科技报告 >TRANSONIC AERODYNAMIC CHARACTERISTICS OF HYPERSONIC LOW-WAVE-DRAG ELLIPTICAL-BODY-TAIL COMBINATIONS AS AFFECTED BY CHANGES IN STABILIZER CONFIGURATION
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TRANSONIC AERODYNAMIC CHARACTERISTICS OF HYPERSONIC LOW-WAVE-DRAG ELLIPTICAL-BODY-TAIL COMBINATIONS AS AFFECTED BY CHANGES IN STABILIZER CONFIGURATION

机译：受稳定器配置变化影响的超低频低频椭圆 - 尾 - 尾组合的跨音速气动特性

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The present investigation represents part of a generalized study to determine parametrically the effects of the addition of stabilizing surfaces on both stability and performance in the range from hypersonic to subsonic speeds for a certain class of lifting bodies which have exhibited hypersonic lift-drag ratios in excess of 3.0.nAn investigation has been made in the Langley high-speed 7- by 10-foot tunnel at Mach numbers of 0.89, 0.95, and 1.17 to determine systematically the effects of various combinations of outboard-stabilizer and vertical-tail configurations on the longitudinal and lateral-directional stability and the aerodynamic performance of an elliptical hyper¬sonic low-wave-drag body. The longitudinal area distribution of the body conformed to the theoretical shape required to minimize the zero-lift hypersonic pressure drag under the geometric constraints of given length and volume. The body had an elliptical cross section with a semiaxis ratio of 2 (major axis horizontal) and had an equivalent fineness ratio of 6.14. Base-mounted outboard stabilizers were tested at various dihedral angles alone and in combination with either a single center-line vertical tail or with a vee-tail. The angle of attack was varied from approximately -4° to 18° at sideslip angles of 0° and -5°.

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