why diesel electric trains?

Question by stratboy88: why diesel electric trains?
why isnt it just straight diesel to power the train, why is electricty involved?

Best answer:

Answer by fordman
They have found that it is the most efficient way to move the train The electric motors will help keep an even load on the diesel engines to make them run at a constant speed. Also the batteries will assist the motor to provide power to turn the wheels. good luck.

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