The JŽ series 611 is a historic vehicle of Yugoslav Railways. It was a diesel-electric multiple unit made from aluminium alloy. It was nicknamed the "Aluminium train". A total of 3 units were made.
The first examples had a weak engine, but later models had a stronger one. They performed very well on level lines, but on mountain railways they suffered some damage.
History Service start: 1965/9/28 Last year of service: 1974
External links 611 at railfaneurope.net