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美国政府科技报告
>AERODYNAMIC CHARACTERISTICS AT A MACH NUMBER OF 6.77 OF A 9° CONE CONFIGURATION, WITH AND WITHOUT SPHERICAL AFTERBODIES, AT ANGLES OF ATTACK UP TO 180° WITH VARIOUS DEGREES OF NOSE BLUNTING
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AERODYNAMIC CHARACTERISTICS AT A MACH NUMBER OF 6.77 OF A 9° CONE CONFIGURATION, WITH AND WITHOUT SPHERICAL AFTERBODIES, AT ANGLES OF ATTACK UP TO 180° WITH VARIOUS DEGREES OF NOSE BLUNTING
Force and moment tests have been conducted on "both sharp and spherical blunted cone configurations having semi vertex angles of 9° in the Langley 11-inch hypersonic tunnel at a Mach number of 6.77, a Reynolds number per inch of 135,000, and an angle-of-attack range from 0° to l80°.nAnalysis of the results indicates that a second stable trim condition can exist near a = l80° for flat-base cone configurations depending, upon the fineness ratio of the cone. However, it appears that this condition may be prevented by the addition to the basic cones of spherical afterbody caps whose centers of curvature coincide with the respective moment references.
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