It has been a while since I've written about anything fast lately. Lately I've seen a picture of a new trainset being transported to Poland as I stumble around the web for train pictures. This trainset has proven to be quite popular among European countries and is known by many names. Developed by the former rail division of Fiat, now under Alstom of France, this class of trainsets is known by the manufacturer simply as the New Pendolino.
Trenitalia ETR-600
Polish PKP ED250, brand new and shiny
Now if there's a New Pendolino, there must have been an old one. There have been quite a few kinds of those too, the British Rail Class 390 and Finnish Sm3 are a couple of quick examples. A Pendolino is named so because of the fact that she is a tilting train (i.e. the body of the train tilts towards the center of the curve up to 8 degrees, which enables the train to be able to travel faster than non-tilt trains in windy territories). However there are exceptions, like the Chinese CRH5, which is a Pendolino that doesn't tilt.
The Pendolino that doesn't tilt
The New Pendolino not only is an evolution mechanically from the original series, the train also features a more rounded and streamlined design that is much more pleasing to the eye. The trainsets come in a standard 7-car consist (but of course this can vary depending on the order), with 4 of the cars powered with a total output of 7 400 horsepower. The top speed in revenue service of the New Pendolino is 155 mph.
Here's another, Spanish Renfe Avant Class 114, comes in 4-car consists
The train of this week is a locomotive unveiled in 2009 by the BNSF Railway. Instead of using conventional diesel fuel, it is powered by hydrogen fuel cells (I have very limited knowledge in this area, so please feel free to comment on this post if you are interested in and familiar with the topic of hydrogen fuel cells). It is called the HH20B, a hydrogen-hybrid switcher locmotive based on the GG20B Green Goat diesel-hybrid switcher built by Railpower Technologies Corp. of Brossard, Quebec (acquired by R.J. Corman Railroad Group of Nicholasville, Kentucky in 2009). The GG20B is powered by a 300 hp 4-stroke Caterpillar diesel-engine and a battery pack with a combined tractive output of 2,000 hp. On the HH20B, diesel engine is replaced by hydrogen fuel cells. Hydrogen storage is in a set of tanks installed on top of the long hood of the locomotive in a heavily vented enclosure, above the batteries. The BNSF Railway displaying its low- and ul...
The ES44AC (successor of the AC4400CW) is a member of the family of GE's latest and greatest diesel-electric freight locomotives, the Evolution Series . Other locomotives in the Evolution Series include ES40DC, ES44DC, ES44C4 for the domestic market and ES44ACi (Kazakhstan), ES59ACi (China), and ES44DCi (Australia) for export. The direct competitor of the ES44AC is the SD70ACe developed by Electro Motive Diesel (EMD). The name ES44AC can be simply decoded as E volution S eries 4 , 4 00 horsepower AC traction (this naming scheme does not apply to EMD products or the ES59ACi which actually outputs 6,250 horsepower). However, unlike electric locomotives, the rated power of diesel-electric locomotives are measured at the prime mover (i.e. the diesel engine), not at the traction motors. The Evolution Series were developed to meet the stricter EPA Tier 2 emission standards. These locomotives use the GEVO prime movers instead of the FDL prime movers used on th...
What makes most trains, trains, is the fact that locomotives and cars are interconnected by some mechanism (of course they no longer had to be since the introduction of the rail diesel car) that allow them to move along the railroad tracks simultaneously. Before I go further, I wish to introduce, very briefly, buff and draft forces. Two cars are in buff when they push against and are in draft when they pull against each other. A little bit on history: at the very beginning, this mechanism that connects cars together are made up of separate components that deal with buff and draft forces individually. The link and hook take care of draft forces, and buffers (they look like pancakes sticking out the ends of trains as seen in Thomas the Tank Engine) deal with buff forces. Although this system works well once the coupling is complete, which is why it is still in use in many parts of the world, there are many disadvantages to this primitive coupling system that make it unacceptable ...
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