INVESTIGATION OF THE STATIC LONGITUDINAL STABILITY ANDnROLL CHARACTERISTICS OF A THREE-STAGE MISSILEnCONFIGURATION AT MACH NUMBERSnFROM 1.77 TO 2.87

摘要

An investigation has been conducted in the Langley Unitary Plan wind tunnel to determine the static longitudinal stability character-istics of a three-stage missile configuration. Included in this investigation is the determination of effect of body deflection between missile stages and the effectiveness of fin cant angle in producing roll.nTests were performed through an angle-of-attack range from -8° to 4° at Mach numbers of 1.77, 2.l6, 2.54, and 2.87. The correspondingnReynolds numbers (based on model length) were 24.9 X 10°, 21.9 X 10°, 17.7 X 106， and 20.1 X 106.nThe results show that the missile is longitudinally stable through¬out the test Mach number and angle-of-attack range. Body deflection of as much as 1° between stages has little or no effect on the longitudinal stability characteristics. The rolling moment produced by the front fins is ineffective when rear fins are in place.