There are about 2.8 million semitrucks (also called tractors) registered in the U.S. as of 2016. Their trailers—known as tractor-trailers—have no front wheels and can be used only when ...

Semi-trucks with a gross vehicle weight rating (GVWR) over 33,000 pounds are classified as class 8 vehicles by the Federal Highway Administration. ... upsetting the tractor-trailer's equilibrium.

The Class 8 Peterbilt 587 powered by a Cummins ISX15 engine averaged 9.9 mpg during testing last fall on U.S. Route ... meeting SAE International test standards and the tractor-trailer had a ...

The development of a Level 2 Class-A tractor-trailer also demonstrates Daimler’s movement away from two other potential technologies for solving the economic and safety demands of the world’s ...

Ancora Education, a leading workforce solutions provider, has announced their CDL Training: Class A Tractor Trailer program will now be offered at their Miller-Motte College campus in Raleigh ...