Abin da ya fara ne a matsayin "nau'ayi na Musamman" na 6-locomotives na gwada-kwandar ruwa ya samo asali a cikin cikakken iko don kusan dukkanin bukatun locomotive yau. Jerin na SDD na EMD ya hada da samfurin locomotive mafi kyawun lokaci. Daga mahimmanci zuwa ɗakunan kayan gidan kayan gargajiya da duk abin da yake a tsakanin, jerin SD ɗin sun kasance zabi mai kyau na locomotive a kan tashar jiragen ruwa masu girma, ciki har da tashoshin model.
01 na 20
SD7 / SD9
Locomotive da ya fara shi duka! Ginin na shida da ya dace da GP7 mai mahimmanci waɗannan haɗin ginin sun kasance an tsara su tare da rassan rassan waya da yadi. Irin wannan tsarin na SD9 ya ba da karami
02 na 20
SD35
SD35 ana iya bambanta shi ta hanyar karami. Tare da hood da yawa kamar SD40 mafi mahimmanci, SD35 yana amfani da wannan fannin kamar SD7 - samar da karamin wuri ga tankin mai da kuma dandamali na ƙarshe.
An gabatar da SD40 a matsayin zabin yanayi wanda aka rufe a farkon shekaru ta SD45 mafi girma. Da amincinta da ingancinsa da sauri ya burge masu sayarwa duk da haka SD40 za su ci gaba da kasancewa ɗaya daga cikin manyan kayayyaki na lokatai na EMD.
An adana rayuwa a tsaunuka, SD40T-2 da SD45T-2 sun kasance wani sashin radiator wanda ya kwarewa da kariya a kan hanyoyin da ke kudancin Pacific da Rio Grande. Yau za a iya samin waɗannan samfurin na musamman a kan tashar jiragen ruwa da aka nisa daga dutsen dutsen.
Kusan 3600 HPS SD45 shine marubutan EMD na 1964 amma an kwance shi a tallace-tallace da kuma suna ta SD40. Tare da rarrabaccen rabi mai kwakwalwa, SD45 ya ci gaba da kasancewa mai biye da magoya baya da magoya baya da yawa har yanzu yana tafiya a rails - ko da yake an sake gina su zuwa SD40-2 tabarau.
Bukatar yana da karfi ga EMD don inganta halayen SD45 zuwa -2 a 1972. Ko da yake samar da ƙananan ƙananan idan aka kwatanta da SD40-2, SD45-2 ya tabbatar da kawar da mafi yawan matsalolin da suka haɗa da SD45 da kuma kullun har yanzu yana tafiya hanyoyi a zamanin zamani.
11 daga cikin 20
SD50 Conrail 6707 yana da wani nau'i mai nauyin hoto na musamman don girmama ma'aikatan da mata na Farisa Gulf War a shekara ta 1990. Locomotive na ɗaya daga cikin raka'a huɗun da aka yi ta musamman ta hanyar jiragen saman Amurka don tallafawa sojojin. ®2010 Ryan C Kunkle, lasisi zuwa About.com, Inc.
SD50 za ta zama locomotive na ƙarshe don amfani da wannan ginin injiniya 645 da aka gabatar fiye da shekaru biyu da suka wuce. Za a yi amfani da locomotive tare da matsalolin kuma wasu sunyi la'akari da shi mataki na farko a cikin EMD ta zamewa a cikin tseren gwiwar tare da GE.
Tare da ƙari da sababbin ƙungiyoyi masu ta'aziyya da kuma takaddun cabin, SD60M ya nuna farkon zamanin zamani a cikin zane-zane na locomotive daga EMD.
Kodayake kawai hanyar jirgin kasa kawai ke aiki, farko na SD60I, ko kuma takalmin ƙananan jirgi, zai iya samar da hanyoyi don dakunan kwantar da hankulan kwanan nan.
Tabbatar cewa waɗannan locomotives masu kyau ba su mutu ba, Norfolk Southern ya sake gina tsarin SD60E mafi yawa a cikin locomotives SD60E. Taswirar takarda na musamman na uku sun taimaka wajen sa waɗannan shahararren locomotives masu shahara.
16 na 20
SD70 jerin
A cikin shekarun 1990s SD60 ya ba hanyar hanyar SD70. Tare da sabuntawa na microprocessor, SD70 shine amsawar EMD ga locomotives GE Dash 9. Masana injiniyoyi suna samuwa a ma'auni, tsaro da kuma motsi na motsi na AC.
Kodayake sanyawar ba ta nuna yawancin canjin ba, SD70M-2 ya ba da mahimman bayanai masu yawa daga SD70M. Wadannan haɓaka sun ba da damar yin amfani da locomotives tare da wasu ka'idodin tsararru masu ƙarfi
SD80MAC ya ba da locomotive 5000 hp tare da na'urar da aka tabbatar da kuma kayan zamani. Sakamakon da ya fi dacewa a madadin SD90MAC 6000 hp. Kodayake Conrail ya sayi locomotives, bayan shekaru bayan haka, tsawon lokacin da aka yi a kan tsarin SD90 ya tabbatar da amfanar hanyar da ta fi dacewa.
Lokacin da EMD ta yi alkawarinsa a locomotive 6000 horsepower, da dama hanyoyi sun bayyana da sha'awa. Mutane da yawa sun yarda da haka duk da haka rashin lafiyar da ke cikin wahala ta sha wahala. Misalai na baya sun rage wutar lantarki kuma suna ƙarfafa aminci gaba ɗaya.