Accession Number : ADA326880

Title :   An Investigation of the Ballistic Performance for an Electromagnetic Gun-Launched Projectile.

Descriptive Note : Final rept. Aug 94-Mar 97,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Zielinski, Alexander E. ; Weinacht, Paul ; Webb, David W. ; Soencksen, Keith P.

PDF Url : ADA326880

Report Date : JUN 1997

Pagination or Media Count : 66

Abstract : The Cannon-Caliber Electromagnetic Gun (CCEMG) Program is a major effort toward proving the viability of electromagnetic (EM) weapons for future use by the armed services. Crucial to the success of the program are the operational characteristics of the launcher and the integrated launch package (ILP), which consists of an armature/sabot and a subprojectile. To date, 39 shots have been fired at the U.S. Army Research Laboratory (ARL) using a 1.6-MJ capacitor bank and CCEMG Launcher IIa. Free-flight aerodynamic data indicated that the subprojectile has adequate in-flight stability. An analysis of the transitional ballistic process has been performed to quantify the contributors to the total launch disturbance. The jump component dispersion and target impact dispersion are larger in the vertical direction than in the horizontal direction. In the vertical direction, the center of gravity and aerodynamic jump contributions are dominant and roughly equal. In the horizontal direction, the sabot discard is the dominant jump component. Round to round dispersion was computed over a wide range of launch velocities based on downrange impact locations. Impact data on armor were limited, but nonetheless indicated that the round is capable of meeting the CCEMG system requirements. The results presented here represent the first known experimental assessment of these parameters obtained from EM railgun firings.

Descriptors :   *FIRING TESTS(ORDNANCE), *ELECTROMAGNETIC GUNS, *SABOT PROJECTILES, INTEGRATED SYSTEMS, ARMY RESEARCH, AERODYNAMIC STABILITY, ARMATURES, ELECTROMAGNETIC INDUCTION, TERMINAL BALLISTICS, GUN LAUNCHED, FIN STABILIZED AMMUNITION, FIRING RATE.

Subject Categories : Guns
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE