A hydraulic coupling of the diesel engine and drive wheels is possible and was briefly used in the 1960s on locomotives imported by the Southern Pacific and Denver & Rio Grande Western.

The Oregon Rail Heritage Center has been in its current home near OMSI for about a dozen years, and now the center is having ...

Hopefully Union Pacific's testing of two different retrofit technologies for reducing emissions in older locomotives, an experimental "oxidation catalyst" filtering canister and a diesel ...