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 TM 9-8000
Figure 32-11. Bias-Ply Tire Construction
b. Combat Tires. Combat tires are made of much
d. Passenger Tires.
Passenger tires are of
heavier construction than commercial-type tires. They
standard construction and provide good traction on wet
have more rigid sidewalls and heavily cushioned plies
and dry roads. In areas where there is snowfall, a
that are spaced wider apart than the commercial type.
nondirectional snow tire sometimes is used on the driving
They are designed to operate without air pressure for a
wheels for added traction.
limited distance when the tactical situation requires it.
e. Rock-Service Tires. Rock-service tires are large
They have a nondirectional mud-and-snow tread, which
tires of standard construction like those used on
provides good traction in either direction on dirt, on
commercial-type vehicles for off-road service and on
temporary roads, and for cross-country use.
unpaved roads.
c. Truck and Bus Tires. Truck and bus tires are of
f. Earthmover Tires. Earthmover tires are large
standard construction like those used on commercial-
tires of standard construction like those used on
type vehicles. Regular tread is common on truck and
commercial-type vehicles for off-road service. This tread
bus tires and will provide satisfactory traction and long
is considered nondirectional. The earthmover tread
life on highways.
design also may be directional, similar to tread on grader
tires, or nondirectional, similar to tread on rock-service
tires.
g. Grader Tires. Grader tires are similar to
earthmover tires except that they are designed for lower
Inflation pressures and for service Involving extreme
angular ground contact. The directional mud-and-snow
tread design provides good traction In mud and snow, on
dirt or temporary roads, and for cross-country use.
h. Run Flat Tires. Run flat tires are constructed of
a thick sidewall with an air chamber Inside the center
section of the tire. It is pressurized the same as a
standard tire, but if a puncture should occur, the thick
sidewalls help support the weight of the vehicle until the
repair can be made. This type of tire generally is used on
a combat vehicle.
Figure 32-12. Solid Tire Construction
TA233824
32-6
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