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The short, used for tractors and dump trucks, is 13 feet 11 inches (4.24 m), the long ("standard"), used for cargo trucks and wreckers, is 14 feet 11 inches (4.55 m), and the extra-long, used for long cargo trucks and expansible vans, is 17 feet 11 inches (5.46 m).
The M61 short wheelbase chassis, used for tractors and dump trucks, is 167 inches (4.24 m), the M40 long chassis, used for cargo and wreckers, is 179 inches (4.55 m), and the M63 extra-long chassis, used for long cargo and expansible vans, is 215 inches (5.46 m).
The short (M810), used for tractors and dumps, was 167 inches (4.24 m), the standard long (M809), used for cargo, wreckers, and bolsters, was 179 inches (4.55 m), and the extra long (M811), used for long cargo, tractor wreckers, and expansible vans, was 215 inches (5.46 m). [3] [8] Most models had 11.00x20 size tires with dual rear tires.
Together, these were the U.S. Army's standard 4- to 5-ton, 4×4 tractor trucks, used for towing a variety of semi-trailers, like the 25-foot and 40-foot, 12 + 1 ⁄ 2-ton type C-2 flatbeds (for wrecking, moving aircraft, and general hauling), and the AAF type F-2 and F-2A fuel tankers. [33]
The 1990 -A2 upgrade was a completely different truck: a Freightliner Trucks design with a different engine and transmission, hood and cab. Older models were upgraded to -A4 standard with a new cab and frame that used the original truck's components. Starting in 2009 M915A3s were upgraded to the armored -A5 standard.
Width: 2.26 m (7 ft 5 in) Height: 10 feet / 2.54m: ... The Bedford QL was a series of trucks, ... which differed from the standard type in having special electrical ...
The engine was a successful design but by 1960 its 4 miles per US gallon (1.7 km/L) and the use of gasoline as a fuel in heavy trucks were becoming a problem. [2] [13] [14] In 1962–1963 Diamond T and Mack began retrofitting M52 semi-tractors and M54 cargo trucks to the -A1 standard.
Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...