The following was published in CCJ's Air Brake Book, 11th edition, sponsored by SilverbackHD. CCJ's Air Brake Book is a complementary industry resource, courtesy of our partnership with SilverbackHD, ...
It takes a robust braking system to bring 80,000 lb. (36,000 kg) of moving tractor-trailer to a halt. And half of that system sits on a trailer, about 45 feet (about 13.5 meters) behind the driver.