
iii. emm. sii. eiii. bii. 6

general motorsinte electro-motive korppareshan 1940 juunil chikkago, roock ailand, pasaphik railroad ("roock ailand line") ennivaykkaayi maathramaayi nirmmicha oru tharam deesal locomotive aayirunnu emc eba6. rund udaaharanagal nirmmichu, #750, #751 enningane akkamittirunnu. avaa "rockie moundan rokkatt" passenture traininayi nirmmichathaanu, ithu chikkago, illinoyisil ninnu limoon, colladoyilekku oru ekeekritha trainayi sanjarichu, athu pinneedu vibhajikkapettu. oru vibhaagam collado springs, collado, mattonn denver, collado ennividangalilekku pooyi. roock ailand roottinte chikkago-limoon bhaagath traininte samyojitha bhagam pole kaanapedanum thudarnnu moonnu kaarukal collado springukalilekku kondupokaan swathanthramaayi pravarthippikkaanum kazhiyunna oru locomotive aagrahichu. oru saadhaarana, kyab sajjeekaricha eiii-yoonit vaangaamaayirunnu, pakshe athu traininte kaaryakshamamaya roopathe nasippikkumaayirunnu, athinaal iii-seerees iii6bii (bii yoonit) adisthaanamaakki oru phlait frond locomotive nirmmikkaan emck rii undaayirunnu, ennaal oru operating kyab, hedlight, pailat, mattu savisheshathakal enniva upayogichu oru swatantra locomotive aayi pravartthikkaan prapthamaakkunnu.
unitukal swathanthramaayi kondupokenda moonnu, naalu kaar trainukal valare bharam kuranjavayaayathinaal, oru 1,000 echpi emc 567 vii 12 enchinum randaamathe enchin undaayirikkenda oru bagej compartmentum upayogichaanu ebi6 jody nirmmichathu. pinneedu, train looad vardhichathode, bagej compartmentinu pakaram randaamathe enchin upayogichu.
1965ll unitukalkku pakaram steem janarettarukal head-end power upayogichu maattisthaapikkukayum chikkago pradeshathe suburban sarveesukal push-pull cheyyaan punarniyamanam cheyyukayum cheythu. eee roopathil, avaa 1970 kalude pakuthi vare nilanilkkukayum oduvil avaa illaathaakkappedukayum cheythu.