Tesla Semi parts diagrams and sample VIN tag hit Twitter
modules and a few subsystems. Even better, there was a sample VIN sticker providing a few figures we outsiders are still waiting for. Starting with upper left on the sticker, the Semi's gross vehicle weight rating is given as 22,135 kilograms or 48,800 pounds. This is not the weight of the Semi; just as with a car or, it's how heavy the Semi is allowed to legally be. The first column, GAWR, stands for Gross Axle Weight Rating.
When a tractor and trailer pull onto a scale, the scale ticket shows the weight on the front axle, called the steerer, the total weight on the two axles behind the cab, called the drivers, and the total weight on the two axles on the trailer, called the tandems. On a standard ICE over-the-road, the limits are 12,000 pounds for the steerer, 34,000 pounds for the drivers , and 34,000 pounds for the tandems .
Here's what's most important: These numbers don't tell us how much the tractor weighs, only how it has to distribute weight. When hooked to a fully loaded trailer, a fair bit of the weight on the drivers comes from the weight of the trailer nose and the cargo sitting in or on the front of the trailer.
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