Discussion relating to the operations of MTA MetroNorth Railroad including west of Hudson operations and discussion of CtDOT sponsored rail operations such as Shore Line East and the Springfield to New Haven Hartford Line

Moderators: GirlOnTheTrain, nomis, FL9AC, Jeff Smith

  by RailBus63
When comparing the sound of a Genesis dual-mode passenger locomotives to a GE freight locomotive, I've noticed that the Genesis engine sounds as if it's revving at a higher speed even during station stops. Do these engines rev at a constant speed? Is this related to the HEP unit?

Jim D.

  by DutchRailnut
Not really Dave without the HEP the engine goes down to regular Idle. But with HEP it runs from 770 to 1050 depending on Demand.
An AC locomotive does not notch up same as a DC unit however it lets load go up and the engine tries to keep up or anticipate the load.