TM 9-2330-381-14
c. The tractor/semitrailer combination can operate going up or down a 15 percent grade and has a maximum towing
speed of 45 mph (72.4 km/h) on primary roads, 40 mph (64.3 km/h) on secondary roads, and 15 mph (24.1 km/h)
off road.
d. Fully loaded, the tractor/semitrailer combination can operate on a 20 percent side slope with either side facing
upslope without tires coming off the ground or overextending the suspension assemblies.
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