Uerdingen Railbus

The Uerdingen railbus (German: Uerdinger Schienenbus) is the common term for the multiple units which were developed by the German firm of Waggonfabrik Uerdingen for the Deutsche Bundesbahn and private railways after the Second World War. These vehicles were diesel-powered, twin-axle railbuses of light construction. The diesel motors were built into the chassis underneath the vehicle. The VT 95 (later DB Class 795) and VT 98 (later DB Class 798) of the former Deutsche Bundesbahn in particular, are associated with this concept. These vehicles were employed in passenger train duties on branch lines where steam or diesel train operations were less profitable. Including the units built under licence, a total of 1,492 power cars were built from 1950 to 1971; and the total number of units, including trailer and driving cars, was 3,306.

The majority of these vehicles were built by the Waggonfabrik Uerdingen. However, due to the large numbers ordered, vehicles were also made by other coach builders such as MAN, although these factories could offer their own classes of railbus like the MAN railbus, and in Spain they were built by CAF, Macosa, and Verdingen as FER-560/FRC-560 Ferrobús (railbus).

The railbus, much loved by passengers, was also nicknamed the Rote Brummer (Red Buzzer) because of the loud noise it made when driving. In North Germany the railbus was also often known as the Ferkeltaxe (Piglet Taxi). Amongst railway fans it was also called the Retter der Nebenbahnen (Branch Line Saviour).