STATIC LONGITUDINAL AERODYNAMIC CHARACTERISTICS OF SEVERAL WING AND BLUNT-BODY SHAPES APPLICABLE FOR USE AS REENTRY CONFIGURATIONS AT AnMACH NUMBER OF 6.8 AND ANGLES OF ATTACK UP TO 90°

摘要

The static longitudinal stability and trim characteristics of sev¬eral basic wing and blunt-body reentry shapes are presented along with some estimates made by the modified Newtonian and shock-expansion the¬ories. Experimental data were obtained from an investigation made in the Langley 11-inch hypersonic tunnel at a Mach number of 6.8 through an angle-of-attack range up to 90°. Results of this investigation show that wing plan form has no noticeable effect on the lift-drag ratio of thin flat wings at very high angles of attack and that the maximum lift coefficient of these wings is affected by plan form, but there are indi-cations that no appreciable change in maximum lift coefficient should be expected with increasing Mach number in the high hypersonic speed range. It was also found that the blunt-body shapes tested have static aerodynamic characteristics suitable for use as reentry vehicles and are capable of being trimmed at lift-drag ratios sufficiently high to permit limited control over range and reentry deceleration.