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Old 07-31-2010, 06:11 PM   #1
TrainWatcher
Junior Member
 
Join Date: Jul 2010
Posts: 4
Smile Tech Question re: Torque

My first post and new interest in Locomotives!

From my home in Las Vegas, I am able to watch trains all day long as they transit Las Vegas. I see a lot of BNSF and UP north/south traffic.

Anyway, on to my question.

When you have a train of some 75 cars, the head end has 3 EMD's and the trailing end is composed of 2 EMD's. (configuration for transit over El Cajon)

Question: How do the Engineers match the torque loads of the tail end EMD's to the head end so that that trailing end isn't dragging or over pushing the system?

Is it as simple as matching amps from the front and rear EMD's?

Thanks

TrainWatcher
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