2.
Product Improvement Package (PIP) for the M113A3.
The M113A3 is a product improved, aluminum armored, full tracked
personnel carrier designed to transport troops, equipment, and cargo
during combat operations. The A3 configuration provides an upgraded
engine and transmission (powerpack) to compensate for the added
weight, an improved battery charging system, some changes in the
driver and crew compartments and controls, and a modified hull which
includes armored external fuel tanks (also included on some later
models of A2 configuration), spall liners, and fixing points for
installing the bolt-on armor.
This subcourse addresses these
changes, separately, in the various parts.
3.
Delivery of The New M113A3.
Production began in the 4th quarter of fiscal year (FY) 1986.
A
modification program is currently implementing Congress-directed
survivability improvement upgrades to the existing A2 configuration
of vehicles.
When the modification programs are completed, the A2
configurated vehicles will be redesignated as M113A3.
4.
Locational Terms.
Before going into more specifics on the M113A3 components, you must
understand the terms relative to location (locational terms).
The
terms FRONT, REAR, LEFT, and RIGHT are used to describe where items
are located on the carrier. If you are working with carrier items,
think of the locations as if you are standing on the ramp facing the
inside of the carrier.
From this location, you face the forward
(front) part of the carrier.
Powerpack items consist of the engine, transmission, and those
components incorporated in them.
If you are working with the
powerpack, think of the location of the components of the powerpack
as if you were standing at the transmission end of the power unit and
facing the flywheel end of the engine. For example, the front of the
engine faces the rear portion of the carrier, and the rear portion
(flywheel end) of the engine faces the front portion of the carrier.
This rule applies whether the powerpack is IN or OUT of the carrier.
Figure 1-1 illustrates the locational terms for the M113A3 carrier
and power unit.
5.
External View of Hull.
Figure 1-2 provides
the left front and right rear views of the
M113A3.
Figure 1-3
provides a view of the left front portion and
figure 1-4 provides
a view of the right rear portion of the M113A2
external hull.
Use
these figures to familiarize yourself with the
external hull of the
M113A3 and the M113A2 personnel
2
OD1712
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