About 100 standard-gage Diesel-electric locomotives are in service or on order for railroads and industrial concerns in United States and Canada; used mainly in switching service; tabular data on operating costs; graph comparing tractive effort speed characteristics of Diesel-Electric and steam locomotives.
Oil-electric locomotives show large savings in operating costs
Nat. Petroleum News
National Petroleum News ; 22 , n 19
1930
2 pages
1 Fig.
Aufsatz (Zeitschrift)
Englisch
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