From the center of steer axle to center of rear axle on trailer. If you want just the truck it's the center of steer axle to center of rear drive axle.
That depends on the wheelbase of the power unit.
Traditionally, longer wheelbase trucks ride smoother and are more stable in inclement road conditions, whereas short wheelbase trucks turn easier.
Depends on what you want out of it. If you can't back up very well or you have to squeeze into really tight spaces, you probably want a shorter wheelbase truck. If you want a better ride, and more stability on slick roads, you'd want a longer wheelbase.
They had a short wheel base truck and a long wheel base truck. The short bed truck had a 115" wheelbase. The long bed truck had a 127" wheelbase.
Varies according to wheelbase of the power unit, and the bridge length between the drive axles and trailer axles.
As a standard factory model, the Kenworth W900L can have a 270 inch wheelbase. Trucks longer than this are custom ordered, and have the large ICT sleepers added as an aftermarket option.
Who invented the Semi-truck?
112"
If the semi truck knocked on the garbage truck, yes.
As long as the customer specifies it to be, up to 45 feet long. A typical OTR fleet truck will have a wheelbase from 220 to 240 inches. A Peterbilt 379 or 389 or a Kenworth W900L typically has a 265 - 270" wheelbase. When you get into specialized trucks and custom trucks with ICT sleepers, the wheelbase can get much longer... for example, I ran a winch truck in the oilfields with a 325 inch wheelbase.
For Class 8 truck pulling a 53' trailer, you can expect the length to typically be between 60 and 80 feet, depending on the wheelbase and hood extension of the power unit. With a Volvo VNL730 (with a 233 inch wheelbase) and 48' flatbed with the fifth wheel slid all the way to the rear, I measure out around 67 feet. With a Kenworth W900L (with a 270 inch wheelbase) and a 53' stepdeck trailer and the fifth wheel centred, I measured about 78 feet.
112 inches