Accession Number : AD0717002

Title :   Measurements of the Dynamical Behavior of Projectiles Over Long Flight Paths.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Mermagen,William H.

Report Date : NOV 1970

Pagination or Media Count : 50

Abstract : The yawing and rolling behavior of projectiles is studied using solar aspect sensors to provide one-dimensional data in the form of solar aspect angle as a function of time of flight. The instrumentation is described and data handling procedures to extract two-dimensional motion from the data are discussed. Several interesting flights of fin and spin-stabilized shell are described in detail. Large amplitude yawing motion and roll reversal with the possibility of resonance have been observed on instrumented flights. The pitch frequencies are well determined and the derived modal amplitudes and phases seem reasonable. Applications and limitations of the technique are discussed. (Author)

Descriptors :   (*PROJECTILE TRAJECTORIES, MEASUREMENT), (*PROJECTILES, EXTERIOR BALLISTICS), (*EXTERIOR BALLISTICS, TELEMETER SYSTEMS), DETECTORS, SOLAR CELLS, TELEMETERING TRANSMITTERS, DATA TRANSMISSION SYSTEMS, INSTRUMENTATION, CALIBRATION, NUMERICAL ANALYSIS, SABOT PROJECTILES

Subject Categories : Ballistics
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE