Accession Number:

ADA209510

Title:

Determination of Aerodynamic Drag and Exterior Ballistic Trajectory Simulation for the 155mm, DPICM, M864 Base-Burn Projectile

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1989-06-01

Pagination or Media Count:

40.0

Abstract:

HAWK Doppler radar data collected at Yuma Proving Ground, Az, for the 155mm, DPICM, M864 base-burn projectile have been reduced for the purpose of determining the aerodynamic drag. The estimated base drag reduction during base- burn motor functioning showed a very good correlation with time of flight and to a lesser degree with local atmospheric air pressure. No correlation was evident with flight Mach number, provided an effective base drag coefficient is assumed which is just a function of Mach number. This result suggests a simple addition to the Modified Point Mass Trajectory Model for the exterior ballistic simulation of the M864 base-burn projectile. Keywords Projectile trajectories DPICM Dual-purpose Improved Conventional Munitions Propelling charges Ballistic trajectory modeling.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE