2-8-0+0-8-2

From Wikipedia, the free encyclopedia

UIC class1D+D1, 1'D+D1'
UIC class1D+D1, 1'D+D1'
2-8-0+0-8-2
Diagram of one small leading wheel, eight large driving wheels in two foursomes with each foursome joined by coupling rods, and one small trailing wheel
The sole LNER Class U1 Garratt
Equivalent classifications
UIC class1D+D1, 1'D+D1'
French class140+041
Turkish class45+45
Swiss class4/5+4/5, 8/10 from 1920s
Russian class1-4-0+0-4-1
First known tank engine version
First use1924
CountryBurma
LocomotiveClass GA.I
RailwayBurma Railways
DesignerBeyer, Peacock & Company
BuilderBeyer, Peacock & Company

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 2-8-0+0-8-2 is a Garratt locomotive. The wheel arrangement is effectively two 2-8-0 locomotives operating back to back, with the boiler and cab suspended between the two power units. Each power unit has a single pair of leading wheels in a leading truck, followed by four coupled pairs of driving wheels and no trailing wheels.

A similar wheel arrangement exists for Mallet type locomotives, but is referred to as 2-8-8-2 since only the front engine unit swivels.

This Garratt wheel arrangement was somewhat common, especially for locomotives intended for freight service. The first 2-8-0+0-8-2 locomotive was a single metre gauge locomotive built by Beyer, Peacock & Company in 1924 for the Burma Railways as their class GA.I. The second, and perhaps the better known, was the single Class U1 of the London & North Eastern Railway (LNER), built in 1925.[1][2][3]

Use

References

Related Articles

Wikiwand AI