 NSB Class 73 ( Norwegian : NSB @-@ type 73 ) is a class of 22 electric multiple units built by Adtranz for the Norwegian State Railways . The four @-@ car trains were modifications of Class 71 , which was again based on the Swedish X2 . The A @-@ series consists of 16 intercity trains ; they were delivered in 1999 and 2000 and are used on the Bergen , Dovre and Sørland Lines . The intercity service was branded as Signatur until 2003 . The B @-@ series consists of six regional trains delivered in 2002 and used on the Østfold Line . The regional trains were originally part of the Agenda concept . The trains have a power output of 2 @,@ 646 kilowatts ( 3 @,@ 548 hp ) and a maximum speed of 210 km / h ( 130 mph ) . They have an overall length of 108 meters ( 354 ft ) and have a capacity for 208 seated passengers in the A @-@ series and 250 in the B @-@ series . The trains have tilting mechanism allowing for faster travel through curves . 
