Document in pdf-format. – 6 p.
MACS is two different solid propellant charges which provide a
complete zoning solution for 155mm artillery applications by using
multiples of a basic module. MACS is optimally designed for
Crusader, the next generation in field artillery, while maintaining
backward compatibility with currently fielded howitzer systems
(i.e., M109A6 Paladin, M198 towed, etc.). MACS has many benefits
associated with replacing the currently fielded four-charge system
with its more advanced two-charge design. MACS consists of the
XM231 propelling charge and the XM232 propelling charge. The XM231
module is used at lower zones (1 or 2 increments at a time) while
the XM232 module is used at higher zones (3, 4, 5, or 6 increments
at a time). See a comparison of MACS zones to comparable zones of
currently fielded charges. Both the XM231 and XM232 are based on
the classical Unicharge design, i.e., bi-directional center core
ignition, granular propellant contained in a rigid combustible
case, etc.; however, the XM231 and XM232 have design differences.
All XM231 modules are identical allowing them to be interchangeable
(likewise with the XM232). The design features allow MACS modules
to be both manually and automatically handled, and to meet future.