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2-8-0+0-8-2

Garratt locomotive wheel arrangement

Field	Value
name	2-8-0+0-8-2
image	WheelArrangement 2-8-8-2.svg
alt	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
image2	2395 LNER U1 Garratt official photo.jpg
caption2	The sole LNER Class U1 Garratt
UIC/Germany/Italy	1D+D1, 1'D+D1'
French/Spanish	140+041
Turkish	45+45
Swiss	4/5+4/5, 8/10 from 1920s
Russian	1-4-0+0-4-1
date	1924
country	Burma
locomotive	Class GA.I
railway	Burma Railways
designer	Beyer, Peacock & Company
builder	Beyer, Peacock & Company

| UIC/Germany/Italy= 1D+D1, 1'D+D1' | French/Spanish = 140+041

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 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 since only the front engine unit swivels.

Overview

This Garratt wheel arrangement was somewhat common, especially for locomotives intended for freight service. The first 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.

Railway	Class	Works no.	Units	Year	Builder
Burma Railways	GA.I	6180	1	1924	Beyer, Peacock & Company
Burma Railways	GA.II	6354	1	1927	Beyer, Peacock & Company
Burma Railways	GA.III	6411-6413	3	1927	Beyer, Peacock & Company
War Department, Bengal Assam Railway	Light	7112-7121	10	1943	Beyer, Peacock & Company
Burma Railways	GA.IV	1077-1084	8	1929	Krupp
London & North Eastern Railway	U1	6209	1	1925	Beyer, Peacock & Company
Ottoman Railways, Turkey		6324	1	1927	Beyer, Peacock & Company
Mauritius Railway		6381-6383	3	1927	Beyer, Peacock & Company
Bengal Nagpur Railway, India	HSG	6261-6262	2	1925	Beyer, Peacock & Company

Use

Burma

Apart from their first single class GA.I locomotive of 1924, the Burma Railways acquired another locomotive from Beyer, Peacock & Company in 1927, classifying it GA.II. In that same year, another four of class GA.III were placed in service, also from Beyer, Peacock. In 1929, Krupp of Essen in Germany delivered eight more, designated Class GA.IV.

India

The Bengal Nagpur Railway in India used two of the class HSG, built by Beyer, Peacock & Company in 1925.

Ten examples were purchased by the British War Department in 1943 and used on the Bengal Assam Railway in India as their Class MWGX.

Mauritius

The Mauritius Railway owned three 2-8-0+0-8-2 Garratts, also built by Beyer, Peacock & Company in 1927.

Turkey

The Ottoman Railways in Turkey acquired a single 2-8-0+0-8-2 Garratt from Beyer, Peacock & Company in 1927.

United Kingdom

The London and North Eastern Railway (LNER) owned a single Class U1 Garratt, built by Beyer, Peacock & Company in 1925. It was designed by Nigel Gresley for banking coal trains over the Worsborough Bank, a steeply graded line in South Yorkshire and part of the Woodhead line. The Class U1 was both the longest and the most powerful steam locomotive ever to run in the United Kingdom.

References

"The Woodhead Site - The Locomotives - LNER Beyer-Garratt". www.thewoodheadsite.org.uk.
Marsden, Richard. "The U1 Garratt ('The Wath Banker')".
{{Garratt Builders B
{{Garratt Builders O

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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