later designated class diesel electric locomotives built norwegian state railways prime provides power output kilowatts starting traction effort lbf maximum speed kilometres hour mph wheel arrangement locomotives designed use passenger freight trains units ordered replacements aging particularly intended use line lesser extent construction kiel germany class largely based built class unit costing million norwegian nok units delivered march year schedule plagued faults entire order terminated locomotives returned germany taken locomotive germany railway companies ownership taken class leased german passenger train operator units returned norway freight trains history late 1980s norwegian state railways sought new locomotive type replace aging fleet diesel electric locomotives bone operations new locomotives planned use freight passenger trains lesser extent taken delivery originally plans order additional units discarded instead new class pursued wanted similar slightly modern locomotives built class locomotive test run norway november board decided order similar units order later expanded units offered lower price originally stipulated motors bought norwegian conditions standards contract worth nok million nok million unit time order smaller diesel electric locomotives new classes replace contract called delivery february components manufactured including fuel tanks engine frames components locomotive delivered march quickly proved meet specifications contract particular locomotives high fuel consumption faults high track forces issues difficult solve problems particular main oil cooler brakes board computer failed outdoor temperature fell low september administration recommended purchase terminated hold board instead contract signed obliged deliver locomotives specified parties agreed contract terminated late locomotives delivered returned kiel upgrades returned norway november motors upgraded new oil installed minor upgrades performed january regular use freight trains number damaged fire caused incorrectly mounted exhaust system october cracks found wheels units taken service fixed december board decided purchase locomotives excluding number based agreement receive compensation incurred losses owing late delivery performance guaranteed locomotives operational time units grounded january following fires employees stationed trondheim fix issues percent introduction forced years old operational condition services running extra costs keeping running nok million year costs continue delivery new locomotives years time order contributing factor percent extra wage engineers having regulation noise levels run train backup fail continue hauling train april officially announced terminate purchase contract describing locomotives having fundamental construction faults july units service returned germany repairs fire operational unit broke board sent bill purchase price plus interest stating paid week issue brought court stated able locomotives operational february given trying fix locomotives established main fault lay generators issue reached courts companies announcement reached agreement trains returned nok million compensated addition nok million given addition purchase price compensation included interest coverage extra expenses locomotives immediately owned equipment sent ship hamburg major contributor faults lay large number veteran employees necessary build diesel locomotives retired sold kiel facilities following return germany locomotives modified meet german standards designed narrower removing outside stairs moving lights meet standards changes cab walls internal added toilets removed speed reduced mph later reverted number rebuilt kiel lack capacity remaining units rebuilt copenhagen upgrades ownership transferred pool originally owned units leased denmark later units included port kiel units leased state railways need new diesel locomotives overcome different electrification systems use year waiting time new locomotives leased units freight trains sur november locomotives sold given designation main owned operates passenger trains germany locomotives haul car passengers trains route hamburg locomotives returned norway leased new freight operations transferred ninth unit specifications diesel electric locomotive cylinder diesel prime provides power output kilowatts revolutions minute transmission power built mounted phase induction type double pole pair traction motors power wheels reduction gear hollow drive connected wheels ends links traction motors supplied phase electrical power gate turn controlled pulse width controlled traction control electronics electronic cooled fluid traction motors air cooled external fans units starting traction effort lbf continuous traction effort lbf maximum operating speed kilometers hour mph locomotives powered standard gauge giving wheel arrangement equipped stage suspension outer wheels meters distance centers meters wheels diameter millimeters new locomotive minimum curve radius meters locomotives meters long meters wide meters tall weigh tonnes long tons short tons fuel capacity imp gal gal units originally equipped toilet engineer locomotive head end power allowing haul passenger trains addition freight trains run locomotives multiple
NSB Di 6