What is wheel configuration?
In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Modern diesel and electric locomotives are much more uniform, usually with all axles driven.
How do you measure a locomotive wheel?
In this system numbers are assigned to the leading, driving, and trailing wheels of the locomotive. The first number is the number of leading wheels. The middle number (or numbers) give the number and arrangement of drivers. The last is the number of trailing wheels (typically under the firebox).
What was the diameter of the Selkirk’s drive wheels in inches?
It had 540 by 550 millimetres (21 by 22 inches) cylinders and 1,100 millimetres (43 inches) diameter driving wheels, with a working order mass of 107.8 tonnes (106.1 long tons; 118.8 short tons), a grate area of 5.4 square metres (58 square feet) and a tractive effort at 65% boiler pressure of 14,690 kilograms-force ( …
What is the wheel assembly on a train called?
A wheelset is the wheel–axle assembly of a railroad car. The frame assembly beneath each end of a car, railcar or locomotive that holds the wheelsets is called the bogie (or truck in North America).
How do you read an axle configuration?
Formula
- A = number of wheels (twin-mounted tires count as one wheel)
- B = number of driven wheels.
- / = the fore of the rear axles is steered (pusher axle)
- * = the rearmost of the rear axles is steered (tag axle)
- C = number of steered wheels.
How do train wheels work?
When a train with slanted wheels turns, centrifugal force pushes the outside wheel to the larger part of the cone and pushes the inside wheel to the smaller part of the cone. As a result when a train is turning it is momentarily running on wheels that are effectively two different sizes.
What do the numbers on a locomotive mean?
Picture a locomotive with it’s front facing to your left. The numbers, in order, then represent the number of leading (unpowered), the number of drivers, and the trailing number of unpowered wheels. In your example, 2 leading wheels, 6 drivers, a second, independent set of 6 drivers, and 2 trailing wheels.
How many wheels does a train have?
Railway wheel is assembly of two wheels fixed to the axle by interference fit and they rotate along with the axle, without any independent relative movement as in the case of other automobile wheels.
What happened to CP 2816?
After an extensive restoration, the locomotive returned to service in 2001 and was used by the CPR in occasional excursion service until the discontinuation of the steam program in 2012. Since then, the locomotive has been stored in Calgary, Alberta, Canada. She was fired up again in 2020.
What kind of locomotive was the Great Western Railway 3800?
GWR 3800 Class. The Great Western Railway County Class were a class of 4-4-0 steam locomotives for express passenger train work introduced in 1904 in a batch of ten.
What was the wheel arrangement of a steam locomotive?
A graphic of the Whyte notation, with the wheel-arrangement shown being a 4-8-4. (Four leading wheels, eight drive wheels, and four trailing wheels. (which is also the main form of classifying steam locomotive wheel arrangements) is a wheel arrangement classification developed by Frederick Whyte in the mid-1800s.
What is the classification of a steam locomotive?
STEAM LOCOMOTIVE WHEEL ARRANGEMENT CLASSIFICATIONS Frederick Methvan Whyte’s system of classification is used to describe the wheel arrangement of conventional steam locomotives. In this system, the first number is the number of leading wheels, and the last is the number of trailing wheels.
When was the GWR 3800 County class withdrawn?
This class were subject to the 1912 renumbering of GWR 4-4-0 locomotives, which saw the Bulldog class gathered together in the series 3300-3455, and other types renumbered out of that series. The County Class took numbers 3800-3839. 3833 County of Dorset was the first to be withdrawn, in February 1930.