Bombardier RegioSwinger

The RegioSwinger is a tilting diesel multiple unit passenger train for fast regional services on lines without electrification. Adtranz first built it at its Hennigsdorf factory, and it passed to Bombardier Transportation when Bombardier took over Adtranz in 2001. The first units were delivered in 1998 and Deutsche Bahn runs them as Class 612, while Croatian Railways operates eight as HZ 7123, known as the InterCity Nagibni. Each unit has two motorised coaches with a 560 kilowatt Cummins engine in each, hydraulic power transmission and a Scharfenberg coupler that allows up to four units to run together, and the maximum tilt is 8 degrees. Cracked wheel sets found in 2004 led to the tilting system being switched off until hardened axles were fitted from 2005, and a derailment at Rudine in Croatia in 2009 killed six passengers.