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| | Head end power (Site not responding. Last check: 2007-10-22) |
 | | Passenger trains need electricity for heating, cooling, lights, and other purposes. |
 | | Today, this hotel power is normally provided by the loco, and called head end power, in difference to axle generators in each carriage. |
 | | If the train is long, several hundred horsepowers might be needed for generating. |
| www.zierke.com /shasta_route/sidenotes/hep.html (77 words) |
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