The International Union of Railways groups all special classes of railway goods wagon into Class U in its goods wagon classification system.
Two-axled powder wagon for building materials (cement, lime)
Special wagon of Hupac for semi-trailers
Semi-trailer on a Kangourou wagon
Uik 630 (21 80 990 5 904-8)
An open wagon forms a large group of railway goods wagons designed primarily for the transportation of bulk goods that are not moisture-retentive and can usually be tipped, dumped or shovelled. The In
Class U special wagon
…Well wagons, including low-deck wagons and Schnabel wagons Self-discharging hoppers with loading hatches Trials vehicles for RoadRailer and Kombirail systems for intermodal transport…
A Class Ow goods wagon on the Saxon narrow gauge railways with Heberlein brakes
Open wagon for peat, 750 mm (2 ft 5+1⁄2 in)
Twin-axled UIC Type 1 open wagon, used as an ash wagon, on a transporter wagon in Zittau
A Czech (ČD) twin-axled open wagon of UIC Type 2 in Raspenava