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|  MIL-T-45380E(AT)
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3.2.7 Dimension. The cab-to-axle dimension shall be not less than 102 inches but may
be reduced not more than 2 inches when the vehicle is furnished with a tilt type cab.
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3.2.8 Ratings. Vehicle ratings shall be the manufacturer's published ratings. Component
and vehicular ratings shall not be raised to meet the requirements of this specification. When
published ratings are not available, verification of ratings must be submitted to the engineering
office of the procuring activity. The minimum GVW rating shall be 28,000 pounds.
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3.2.9 Accessibility. The design of the vehicle and optional equipment shall permit
access for routine servicing and shall permit access for replacement and adjustment of
component parts and accessories with minimal disturbance of other components and systems.
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3.2.10 Asbestos. Asbestos materials shall not be used in any form in any part of the
vehicle.
3.3 Performance. Performance requirements shall be met with the front, wheel drive
disengaged and with front wheel driving hubs unlocked, except that vehicles equipped with
interaxle compensating devices shall meet performance requirements with the front wheel drive
engaged.
3.3.1 Speeds and gradeability. High and low speed requirements shall be met with the
truck loaded to specified GVW.
3.3.1.1 High speed gradeabiliy. The vehicle shall ascend a continuous grade of
1.0 percent at 50 miles per hour (mph). Gradeability requirements shall be met with the main
transmission in direct drive. Gradeability shall be verified with calculations in accordance with
SAE J688 (see 6.3).
3.3.1.2 Low speed. Low speed shall be calculated with the engine operating at not less
than 35 percent of the recommended governed speed, and shall provide not more than the vehicle
speed (mph) specified in table I for the corresponding number of available forward speeds.
TABLE I. Low speed requirements.
Number of forward speeds Speed (mph)
8
3.0
9 or 10
2.5
3.3.1.3 Maximum geared speed. The maximum geared speed at the engine governed
speed shall be not less than 52 mph (minus 1 percent). Conformance to the geared speed
specified shall be determined by calculating in accordance with the following formula:
9
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