Trailing wheel Totally Explained

Everything about Trailing Wheel totally explained

On a steam locomotive, a trailing wheel or trailing axle is an unpowered wheel or axle located behind the driving wheels. The axle of the trailing wheels were usually located on a trailing truck.
   Trailing wheels were used in some early locomotives but fell out of favor for a time during the latter 19th century. As demand for more powerful locomotives increased, trailing wheels began to be used to support the crew cab and rear firebox area. The trailing wheel supported the firebox allowing it to be longer and wider increasing firebox surface area which allowed higher possible boiler pressures which allowed locomotives to produce more power.
   In the Whyte notation, trailing wheels are designated by the last numbers in the series. For example, the 2-8-2 Mikado type locomotive had two leading wheels, eight driving wheels, and two trailing wheels. Some locomotives such as the 4-4-0 American type had no trailing wheels and were designated with a zero in the final place.
   In the Whyte notation the number designates the number of wheels rather than the number of axles, thus the final 2 in the Mikado's 2-8-2 refers to two wheels (one axle) while the Northern type's 4-8-4 designation refers to four wheels (two axles).
   The highest number of trailing wheels on a single locomotive is six as seen on 2-6-6-6 Allegheny type and the Pennsylvania Railroad's 6-8-6 steam turbine and 6-4-4-6 duplex locomotives, as well as numerous Mason Bogie locomotives.
   In the UIC classification system, the number of axles rather than the number of wheels is counted.

Further Information

Get more info on 'Trailing Wheel'.

External Link Exchanges

Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

<a href="http://trailing_wheel.totallyexplained.com">Trailing wheel Totally Explained</a>

Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.