MetzRail Class 4

The MetzRail Class 4 is a class of diesel-electric locomotive formerly operated in Metzetta by the publicly-owned MetzRail. A total of 204 were built between 1959 and 1963 by Galko Engine Works. They were the pride of Metzetta's diesel fleet upon their introduction, with regular service ending in 1990; as they slowly lost their position at the forefront of rail technology in the country they found use in freight and secondary passenger capacities. A Class 4 served as the Imperial Train from 1959 until into the 1980s and an early example was shipped to Kiravia as a sign of friendship between nations; not coincidentally, Kiravia and Metzetta share a rail gauge.

Most units were decorated in a maroon and white livery, however a blue and orange look was introduced for units still in passenger service towards the end of their lifetime. The first 5 units were named after Metzettan Emperors.

History
Exports?

Technical details
The Class 4s were of Bo-Bo wheel arrangement and fitted with GEWD Mk. II 1,350 horsepower (1,010 kW) engines. The locomotives were fitted with buckeye couplers as standard and had air brake capability for operation with the Mark 2 coaches. The trains fit the 1,600 mm (5 ft 3 in) gauge used in Metzetta.

Replacement
Class 5 obviously.

Preservation
Numerous Class 4 locomotives survive today; the first unit produced was returned to its original maroon livery and put on display in the Metzettan Transport Museum. Both engines used as Imperial Trains are known to still exist and engine number 4004 is still used today for special rail events as a nostalgia ride and for photo opportunities; this engine is also loaned out for filming when era-appropriate trains are required.