Why do they run locomotives 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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In temperatures below 40 degrees Fahrenheit, the engine has to be kept warm for engine fluids to work properly, as antifreeze cannot be used in locomotive engines. Engines are also kept running to provide air conditioning or heat for the crew, which may be aboard even if the train is idling in a yard.

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If the engine is turned off for long periods of time, it takes another long span of time to repressurise the brake lines. Trains, being large and heavy, need the optimal brake line pressure for its efficient stopping. For obvious reasons, loco pilots never compromise on brake line pressure.

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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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Mercifully, new trains no longer dump waste on the tracks. Instead, trains are fitted with chemical holding tanks. These are connected to regular toilets or vacuum toilets. Like aeroplanes, these need to be emptied regularly, leading to trains having to return to terminal stations.

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Velocity is the change in position, acceleration is the change in velocity, and jerk is the change in acceleration. It's called 'jerk' because you perceive a jerk when acceleration changes rapidly. the faster you stop the more the jerk will be.

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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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The average fuel consumed per kilo- meter for all passenger and cargo trains is 7.97 L/ km. This value for local, trafficking, railway track laying and maneuvering trains is 7.92 L/km.

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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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A Brief History. As wireless technologies advanced in the 1960s, freight railroads began adding extra locomotives to the rear of trains to give them enough power to climb steep hills. This is how distributed power was born.

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In our world, a catenary is a system of overhead wires used to supply electricity to a locomotive, streetcar, or light rail vehicle which is equipped with a pantograph.

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A train engine requires about a hundred litres of fuel to get it started. So it wouldn't be economical if the engine is stopped and started frequently. This apart, if the engine is stopped, the moving parts' lubrication will also come to a halt.

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Locomotive Engineer employees work varying schedules and travel extensively to accommodate our 24 hours 7 days a week operation, which may include nights, weekends, holidays or on-call for emergency situations. Work may require travel and time away from home.

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Federal regulators limit the speed of trains with respect to the signaling method used. Passenger trains are limited to 59 mph and freight trains to 49 mph on track without block signal systems. (See dark territory.)

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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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Even when switchyard locomotives are not moving trains, their diesel engines are usually kept running. This is done to charge batteries, warm engine fluids and meet other operational needs. This can amount to several thousand hours of idling per locomotive each year.

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Old diesel locomotives have been scrapped and auctioned in the past after they had completed their codal life and were found uneconomical to operate. These locomotives were dismantled and auctioned piecemeal.

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Train Air Brakes: Also referred to as the Automatic brakes and train line brakes, are where the real knowledge and know how of a good engineer comes into play. This system is extremely effective at slowing and stopping a train using a brake pipe of continuously charged air which runs the full length of the train.

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Its primary purpose is to alert persons and animals to an oncoming train, especially when approaching a level crossing. They are often extremely loud, allowing them to be heard from great distances. They are also used for acknowledging signals given by railroad employees, such as during switching operations.

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If it's very hot – railway tracks can heat up to 50 degrees and risk buckling – which is unsafe for trains to pass over. By slowing trains down, they exert lower forces on the track, reducing the chance of this happening.

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