Accession Number : AD0921823

Title :   The Effect of Conical Boattails on the Magnus Characteristics of Projectiles at Subsonic and Transonic Speeds.

Descriptive Note : Final rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Nielsen, George I. T. ; Platou, Anders S.

Report Date : JUN 1974

Pagination or Media Count : 375

Abstract : Wind tunnel tests were conducted on the Army-Navy Spinner Rocket at subsonic and transonic speeds to determine the influence of boattail configuration on the aerodynamic characteristics of projectile shapes. The boattail configurations consisted of a square base, 1/2- and 1-caliber, 7 degree conical boattails, and an in-caliber fin boattail. Data were obtained on the 5- and 7- caliber configurations at Mach 0.26 and from Mach 0.8 to 1.02. Data were also obtained on the 4- and 6-caliber models at Mach 0.26.

Descriptors :   , (*PROJECTILE TRAJECTORIES, MAGNUS EFFECT), (*ROCKET NOSES, EXTERIOR BALLISTICS), ROCKETS, WIND TUNNEL TESTS, ROCKET TRAJECTORIES, SUBSONIC CHARACTERISTICS, TRANSONIC CHARACTERISTICS, AERODYNAMIC STABILITY, CONICAL BODIES, SPINNING(MOTION), TURBULENT BOUNDARY LAYER, BOUNDARY LAYER TRANSITION, PITCH(MOTION), MOMENTS.

Subject Categories : Rockets
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE