Trailer (vehicle)
Videos
A trailer is an unpowered vehicle towed by a powered vehicle. It is commonly used for the transport of goods and materials. There are two general categories of trailers: the full trailer and the semit
Utility trailer with a folded loading ramp
A boat on a single-axle trailer
ACP Backtracking genset trailer
Touristic road train in Nantes, France. It has three trailers.
Fifth-wheel coupling
Videos
The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin, a 2-or-3+1⁄2-inch-diameter vertical
Trailer (vehicle)
…truck. These trailers have become obsolete due to the issue of the communication between the driver and the conductor and traffic jams. A trailer hitch, fifth-wheel coupling or other type of tow hitch is needed to draw a trailer with a car, truck or other traction engine. A trailer coupler is used to secure the trailer to…
The fifth wheel on a tractor unit, rear view
A fifth wheel, already coupled, side view
A 1920 advertisement for Martin Rocking Fifth Wheel