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Accession Number:
AD0839855
Title:
THEORETICAL STUDIES OF THE USE OF MULTIPROPELLANTS IN HIGH VELOCITY GUNS
Descriptive Note:
Corporate Author:
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
Report Date:
1968-08-01
Pagination or Media Count:
48.0
Abstract:
The use of propellant mixtures in high velocity guns, as means of increasing projectile muzzle velocity, is compared with the use of a single propellant. The propellant mixtures vary in chemical composition, web, and burning rate. A theoretical study is made using the M68 105mm high velocity tank gun as a test case. Gun geometry, projectile weight, and propellant shape are not changed from that of the standard gun. Interior ballistic trajectories in the parametric study are computed using a multipropellant interior ballistic digital computer code. Graphical methods are used to determine the optimum propellant mixture needed to maximize muzzle velocity at a given allowable maximum gun breech pressure. The effect of propellant grain shape on the performance of a gun is considered in a separate study. Results from the interior ballistic computer model are also compared with experimental results from the firing of propellant mixtures in the 5-inch and 16-inch guns used to launch high altitude atmospheric probes.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE