What are semi trailers?
Semi trailers are the term used to define a towed cargo trailer which utilizes one or more rear axles, and no front axle. In place of the front axle, they have retractable legs which can be lowered, allowing them to be “un-coupled” and detached for loading or unloading. More often than not, trailers are paired with a tractor truck by means of a detachable fifth wheel coupling. The fifth wheel allows the semi trailer to pivot around the mounting point, while using the tractor’s rear axles to support the front of the trailer’s weight. The ability to pivot allows a semi trailer to be more maneuverable, providing a tighter turning radius than traditional front axle trailers. Who invented the first semi trailer? The invention of today’s semi trailer can be associated to the accomplishments of two men, August Charles Fruehauf and John C. Endebrock. Both men were instrumental in the development of modern trailers. With the availability of Mr. Ford’s automobile, trailers became sought after to
