Diesel-electric locomotive technology has advanced significantly ... locomotives imported by the Southern Pacific and Denver & Rio Grande Western. This arrangement lacked flexibility and incurred ...

The railroad’s 21 fully diesel and 24 diesel/electric locomotives — which are supplemented by 134 coach cars — are far less reliable than the LIRR’s fleet of about 1,100 electric cars.

The Class DD51 diesel-hydraulic locomotive was in service for nearly 60 years since the era of the former Japanese National Railways. The Class DD51 replaced steam locomotives as the workhorse of ...