Conceptual design approach for small-caliber aeroballistics with application to 5.56-mm ammunition / by Paul Weinacht, James F. Newill, and Paul J. Conroy.

Format:

Book

Government document

Author/Creator:

Weinacht, P.

Contributor:

Newill, James F.

Conroy, Paul J.

U.S. Army Research Laboratory

Series:

ARL-TR (Aberdeen Proving Ground, Md.) ; 3620.

ARL-TR ; 3620

Language:

English

Subjects (All):

Aerodynamics.

Ammunition--Design.

Ammunition.

aerodynamics.

Physical Description:

1 online resource (viii, 64 pages) : illustrations.

Place of Publication:

Aberdeen Proving Ground, MD : Army Research Laboratory, [2005]

Summary:

A conceptual design approach for small-caliber ammunition is presented. The analysis is based on analytical solutions of the point mass trajectory equations obtained using a power law model of the drag coefficient variation with Mach number. The method is validated by comparison with numerical trajectory predictions for the 5.56-mm M855. Using existing data, several important observations regarding small arms drag characteristics are quantified. The results of the analysis form the basis for a conceptual design approach for examining the aeroballistics of small-caliber munitions. Application is then made to 5.56-mm ammunition. Result are presented that examine the design boundaries for 5.56-mm ammunition in terms of trajectory match relative the 5.56-mm M855. By considering interior ballistics constraints and dependence of muzzle velocity on launch mass, the design space is further refined. The results allow the projectile performance to be characterized in terms of impact velocity and energy, gravity drop, trajectory mismatch at range, and cross-wind sensitivity.

Notes:

Title from PDF title screen (ARL, viewed July 21, 2010).

The original document contains color images.

"September 2005."

Includes bibliographical references.

OCLC:

74284392

Access Restriction:

APPROVED FOR PUBLIC RELEASE.