class class norwegian type car electric train norwegian state railways express trains line line multiple units built motors delivered originally named class changed trains received numbering class electric counterpart diesel class power output train capable kilometers hour mph norway class trains involved train disaster trains served line class retired service preserved construction class units ordered norwegian state railways express trains newly shortly electrified lines time similar class diesel multiple units ordered non electrified lines trains built diesel series assembled assembled electric version delivered motors units construction occurred world war modifications delays accidents construction avoid trains finished war ended avoid finished trains able assist german occupation forces units finished delivery completed following year class originally numbered changed numbering system class renumbered units consisted cars given lettering numbered respectively numbering system dates specifications trains aluminum bodies painted unusual colors blue yellow total weight cars tonnes long tons short tons cars respectively weighed tonnes long tons short tons tonnes long tons short tons tonnes long tons short tons total length meters car equipped motors motors total power output kilowatts allowed maximum speed mph train norway able run speed trains painted upper half deep blue lower half unused color scheme class similar seating carried passengers respectively car motor car saloon section seats converted conventional seating square meter cargo section center end cars sections cargo area instead restaurant seats trains planned line electrified class removed service operation class service line june reduced travel time hour minutes branded express february september weekly services continued sweden accomplished hours minutes high speed prohibited standing passengers required purchase seat reservation nok units operation given time fourth service reserve proved optimistic 1950s periods trains taken service lack maintenance saturday trains operated double units june class taken use oslo west station oslo line line june line electrified services shifted express november unit involved train disaster end car needed fully rebuilt december line electrified service extended express free sufficient stock express discontinued november express operated day operated times week express prove success featuring low passenger numbers train ran august trains remained service 1960s new locomotives delivered locomotive hauled express trains replaced multiple units class moved serve line operated services june served summer seen operating oslo fall oslo units taken service single motor car preserved stationed incidents november train disaster occurred class train route oslo collided freight cars running track accident disastrous norwegian history killing people march motor car center car damaged fire retired large damages june unit restored motor car exposed fire june december incident car retired
NSB Class 66