When the Special Train started operated it was hauled by the steam locomotives.
These locomotives were confiscated after the Second World War, series 11. Since 1947 the “Special Train” was hauled by the locomotive marked 11-022, manufactured in Hungary.

For the “Blue Train”, as we know it today, three diesel-hydraulic locomotives were procured from the Krauss-Maffei factory from Munich, and these locomotives were marked with serial numbers and names. Therefore the locomotive 761-001 was named “Dinara”, 761-002 „Kozara“ and 761-003 „Sutjeska“.

After 20 years these locomotives were replaced with 4 diesel-electric locomotives series 666, purchased in “General Motors” factory in 1978. Beside the serial number and item number they had also famous names: 666-001 „Dinara“, 666-002 „Kozara“, 666-003 „Sutjeska“ and  666-004 „Neretva“.

Steam locomotive – series JŽ 11 

MAVAG, Budapest, 1947. Locomotive 11-022, type 1C1-4hv.
Museum item, Belgrade 

Diesel electric-locomotive – series JŽ 761 

Diesel-locomotive series JŽ 761, with hydraulic power transmission device, axle configuration C’C’.
Manufacturer Krauss-Maffei AG, Munich – Allach, Germany, 1957
Museum item, Subotica 

Diesel electric-locomotive – series JŽ 666
 

Diesel electric locomotive series 666 manufactured in “General Motors” – USA, in 1978. Manufacturer sign is JT 22CW-2
It is a six-axle locomotive, with single axle drive, Co’Co’.
Today it is used on the railway lines of  Serbian Railways