Ever had a question or a gripe about truck drivers or trucks? Ask it here, I'll do my best. A few quick facts:A fully loaded truck weights 80,000 pounds or 40 tons. That's roughly the same as 36 Honda Civics. The average tractor trailer is 70 to 80 feet long. A semi needs 40% more space to stop than an automobile. The total area of brake surface on a tractor-trailer is less than the surface area of a standard trash can lid. A semi's brake system is pneumatic (air operated) not hydraulic (using brake fluid) A truck has 10 brakes not 18. A tractor with no trailer is referred to as a bobtail. A bobtail has the longer stopping distance than a tractor trailer. It is built to carry 30,000 pounds on the two rear axles (called tandem axles). Without that weight, those axles easily lose traction on wet or icy surfaces, or in emergency braking situations. By law, a truck driver may drive 11 hours per day. By law, a truck driver may drive 80 hours per week. Most drivers drive the maximum allowed by law. In 56% of all car/semi-truck accidents, the automobile is cited as the cause. This is perhaps the most under reported truck statistic.