Section II. EQUIPMENT CAPABILITIES, FEATURES,
DESCRIPTION, AND PERFORMANCE DATA
P u r p o s e
The M992A1 is a field artillery ammunition support vehicle comparable to current field artillery
weapons (M109A6 and M110A2 self-propelled howitzer class) in terms of speed, mobility,
This full-tracked, self-propelled, diesel-powered vehicle is highly mobile and maneuverable.
It is capable of long-range, high-speed operation on improved roads. It is also well suited to
rough terrain, muddy or marshy ground, sand, snow, and ice. The M992A1 can also ford
waterways where maximum depth is 42 inches (106.68 cm).
Ammunition handling equipment (AHE) that includes a hydraulically operated conveyor,
two projectile rack assemblies, and related components.
A diesel-powered auxiliary power unit (APU) used to drive the hydraulic system and
recharge vehicle batteries.
Simplified test equipment for the internal combustion engine (STE/ICE).
Automatic fire extinguishing system (AFES).
AFES is an automatic and manual electrical system that, when activated, provides
fire-extinguishing capability for the engine and crew compartments. It consists of test
and alarm panels, sensors, and associated equipment explained later in this section
and in the Chapter 4 operating instructions.
Automatic electrical operation will automatically sense and discharge an agent to
extinguish hydrocarbon fires. The crew system provides an automatic electrical
second-shot capability if the fire continues burning or if a second fire occurs.
To discharge the fire-extinguishing agent, manual electrical operation must be
manually activated by the crew. The crew system second-shot manual electrical
activation is available if the fire continues to burn; it must be manually activated by
a crew member.
These systems will not activate unless the crew/engine test and alarm panel
maintenance switches are in the horizontal POWER ON normal operational position.
(See Chapter 4.)
Nuclear, biological, and chemical (NBC) agent detection and protection system.
Ammunition storage racks and compartments.