Accession Number:

ADA114039

Title:

Experimental Testing of a Combustible Case for the 155mm Howitzer

Descriptive Note:

Memorandum rept. 1 Oct 1978-6 May 1980

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Kelso, J. R.
• Koszoru, A. A.
• Horst, A. W.

Report Date:

1982-03-01

Pagination or Media Count:

78.0

Abstract:

A limited experimental program was conducted to investigate potential ballistic advantages associated with the use of rigid, combustible cases for high-performance artillery charges. Five candidate ignition systems were evaluated for use with the combustible case. An igniter consisting of a Class 5 black powder snake without a basepad was selected, and thirty-nine test charges were assembled and fired with this ignition system. Cold- and ambient-conditioned test charges exhibited lower ignition delays and pressure-wave levels than did the standard zone 8 control rounds. Somewhat higher pressure-wave levels and maximum chamber pressures, however, were experienced with hot-conditioned test rounds when compared to data obtained firing bagged charges employing the same propellant lot. Case residue was minimal under all conditions.

Descriptors:

• *INTERIOR BALLISTICS
• *COMBUSTIBLE CARTRIDGE CASES
• FIRING TESTS(ORDNANCE)
• EXPLOSIVE CHARGES
• ARTILLERY AMMUNITION
• NITROCELLULOSE
• HOWITZERS
• EXPERIMENTAL DATA
• PRESSURE GRADIENTS
• IGNITION

Subject Categories:

• Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE