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Shock and Vibration
Volume 8 (2001), Issue 3-4, Pages 183-191

Dispersion Analysis of the XM881APFSDS Projectile

Thomas F. Erline,1 Brendan J. Patton,1 and Alan F. Hathaway2

1Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving Ground, MD 21005-5066, USA
2Arrow Tech Associates, 1233 Shelburne Road, Suite D8, Pierson House, South Burlington, VT 05403, USA

Received 15 October 2001; Revised 15 October 2001

Copyright © 2001 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study compares the results of a dispersion test with mathematical modeling. A 10-round group of modified 25-mm XM881 Armor Piercing Fin Stabilized Discarding Sabot projectiles was fired from the M242 chain gun into a designated target. The mathematical modeling results come from BALANS, a product of Arrow Tech Associates. BALANS is a finite-element lumped parameter code that has the capability to model a flexible projectile being fired from a flexible gun. It also has the unique feature of an automated statistical evaluation of dispersion. This study represents an effort to evaluate a simulation approach with experiment.