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by SigmundA
947 days ago
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Diesel electric drive are only around 80% efficient while a mechanical transmission is 95%+. It is a misconception that trains use them for efficiency, trains get their efficiency from low rolling resistance from steel wheels on steel tracks and aero efficiency from all the cars drafting together. The electric drive is needed for simplicity of routing power to wheels and for the precise traction control needed to get the train moving without slipping the wheels. |
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