Why are locomotives run back to back?

Being the engineers in a push-pull train was considered to be a special skill. Today, the second locomotive is operated by remote control. And the reason the two locomotives face in opposite directions is that it makes them reversible when they get to wherever it is that they're going.



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It is the policy of the largest US railroad to shut down engines for fuel conservation. However, besides temperature there are other reasons to leave an engine running. Among these are to preserve a supply of air to the trains air brake system or to ensure the locomotives batteries remain charged.

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Engines may be left idling to maintain important safety related functions such as maintaining engine temperature, air pressure for the brake system, the integrity of the starting systems, the electrical system and providing heating or cooling to a train's crew and/or passengers.

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The life expectancy of diesel-electric and electric locomotives is expected to be similar—about 25 years. Both types of motive power are subject to technological obsolescence.

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Yes, locomotive engines typically have a toilet, also known as a lavatory or restroom, for the use of the crew members who operate the train.

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Hydrogen-powered fuel cells, combined with batteries to store electricity, would be a zero-emissions solution to replace the diesel-electric locomotive, Moslener says.

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In railroad terminology, double heading indicates the use of two locomotives at the front of a train, each operated individually by its own crew.

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The rearlights on locomotives, multiple units and railcars. To ensure that the rear of the failed train is always visible, all trains are required to display three red lights at their rear: two tail lamps plus the red portion of the destination roller blind.

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Usually 30 to 50 years but a diesel engine might be replaced by a more modern and efficient model after half that time. Likewise a locomotive's electronics can be upgraded, or adjustments to new signalling systems made.

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Power plant capacity is far greater than any individual locomotive uses, so electric locomotives can have a higher power output than diesel locomotives and they can produce even higher short-term surge power for fast acceleration.

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Ever check out the list prices of brand-new main line diesel-electric locomotives? They are expensive – about $3 million each.

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Most yard-switching and short-haul locomotives are equipped with diesel engines ranging from 600 to 1,800 horsepower; road units commonly have engines ranging from 2,000 to 4,000 horsepower.

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While modern trains won't litter the tracks with human excrement, the traditional method did just that. This is what was known as a hopper toilet. It could either be a simple hole in the floor (also known as a drop chute toilet) or a full-flush system.

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Crews on the road typicaly start at there home terminal when they are called and work a particular route to the away terminal where they rest and wait for there call for a train headded back to it's home terminal. At the away terminal the railroad supplys houseing either in a motel or sometimes in a company dorm.

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These can be as low as 200 revolutions per minute (RPM), in contrast to earlier locomotives which typically idled at 315 RPM. Many of the earlier units have been retrofitted with available low idle speed modifications to reduce idle RPM as much as possible, limiting noise and air emissions.

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Elements of the diesel locomotive The diesel engine may operate on the two-stroke or four-stroke cycle. Rated operating speeds vary from 350 to 2,000 revolutions per minute, and rated output may be from 10 to 4,000 horsepower.

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Santie Oil stocks train engine oil in 40–60-gallon drums or 40–260-gallon totes to help diesel mechanics keep locomotives in top condition. The Federal Railroad Administration requires train engine oil to be changed every 180 days (formerly 92 days), and the time may be extended based on the oil's condition.

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