Accession Number : ADA299851

Title :   Test Results from a 37-mm Segmented-Chamber Bulk-Loaded Liquid Propellant Gun.

Descriptive Note : Final rept. Jan 93-Oct 94,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Rosenberger, T. E. ; Stobie, I. C. ; Knapton, J. D.

PDF Url : ADA299851

Report Date : SEP 1995

Pagination or Media Count : 50

Abstract : A program was initiated at the U.S. Army Research Laboratory (ARL) to investigate the use of segmented- chamber configurations to control the ballistic variability in bulk-loaded liquid propellant guns (BLPG). A series of gun firings was performed in a 37-mm BLPG using OTTO II monopropellant. Results of these tests indicated that a radial igniter and solid propellant booster with various segmented-chamber concepts are favorable in controlling the combustion evolution and ballistic stability in this gun system. Subsequent 37-mm gun firings designed to investigate the feasibility of achieving the same results using a HAN-based propellant (XM46) were performed. Results of these tests indicated that XM46 is more difficult to ignite in this system than OTTO II monopropellant. This report describes the system configuration and test results which exploited segmented-chamber configurations to control the combustion evolution and ballistic stability in the 37-mm gun using OTTO II monopropellant. Test results using XM46 in the same configuration are presented and future plans are discussed. liquid propellant guns, interior ballistics, bulk loaded, segmented chamber

Descriptors :   *LIQUID PROPELLANT GUNS, TEST AND EVALUATION, STABILITY, ARMY RESEARCH, VARIATIONS, COMBUSTION, CONFIGURATIONS, EVOLUTION(GENERAL), GUNS, BALLISTICS, BOOSTER ROCKET ENGINES, CHAMBERS, GUNFIRE, SEGMENTED, IGNITERS, SOLID PROPELLANTS, INTERIOR BALLISTICS, MONOPROPELLANTS.

Subject Categories : Guns
      Liquid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE