2-6-0+0-6-2

Puffing Billy Railway Garratt G42, originally built for the Victorian Government Railways in 1926.

In the Whyte notation for the classification of steam locomotives by wheel arrangement, a 2-6-0+0-6-2 is a Garratt articulated locomotive using a pair of 2-6-0 power units back to back, with the boiler and cab suspended between them. The 2-6-0 arrangement has a single pair of leading wheels in a leading truck, followed by six driving wheels (three pairs) rigidly mounted in the locomotive's frame, with no trailing wheels. Since the 2-6-0 type was often called the Mogul type, the corresponding Garratt type was usually known as a Double Mogul. A Mallet type locomotive with the same wheel arrangement is classified as 2-6-6-2.

Other equivalent classifications are:

• UIC classification: 1C+C1 (also known as German and Italian classifications)
• French classification: 130+031
• Turkish classification: 34+34
• Swiss classification: 3/4+3/4 up to the early 1920s, later 6/8

Overview

The 2-6-0+0-6-2 was the second Garratt type to appear after the 0-4-0+0-4-0 and was first used on the fourth through ninth Garratts to be constructed.

2-6-0+0-6-2 Garratt production list – All manufacturers

Gauge	Railway	Class	Works no.	Units	Year	Builder
Template:TrackGauge	Wells and Walsingham Light Railway			1	1986	Neil Simkins
Template:TrackGauge	Wells and Walsingham Light Railway			1	2010	Wells and Walsingham Light Railway
Template:TrackGauge	South African Railways	NG G11	5975-5977	3	1919	Beyer, Peacock
Template:TrackGauge	South African Railways	NG G11	6199-6200	2	1925	Beyer, Peacock
Template:TrackGauge	Victorian Government Railways, Australia	G	6267-6268	2	1926	Beyer, Peacock
Template:TrackGauge	São Paulo Railway, Brazil	U	5664	1	1912	Beyer, Peacock
Template:TrackGauge	São Paulo Railway, Brazil	V	6795	1	1936	Beyer, Peacock
Template:TrackGauge	C.F.Madagascar	B	2031-2032	2	1926	St. Leonard, Belgium
Template:TrackGauge	South African Railways	GA	5941	1	1920	Beyer, Peacock
Template:TrackGauge	Australian Portland Cement		6794	1	1936	Beyer, Peacock
Template:TrackGauge	Australian Portland Cement		6935	1	1939	Beyer, Peacock
Template:TrackGauge	Western Australian Government Railways	M	5477-5482	6	1911	Beyer, Peacock
Template:TrackGauge	Western Australian Government Railways	Ms	5665-5671	7	1912	Beyer, Peacock
Template:TrackGauge	Western Australian Government Railways	Msa	46-55	10	1930	Western Australian Government R'ys
Template:TrackGauge	Argentine North Eastern (FCNEA)		6238-6240	3	1925	Beyer, Peacock
Template:TrackGauge	London Midland & Scottish Railway		6325-6327	3	1927	Beyer, Peacock
Template:TrackGauge	Argentine North Eastern (FCNEA)		6349-6352	4	1927	Beyer, Peacock
Template:TrackGauge	East African Railways		6355-6359	5	1927	Beyer, Peacock
Template:TrackGauge	London Midland & Scottish Railway		6648-6677	30	1930	Beyer, Peacock

Usage

Australia

Western Australian Government Railways MSA class Garratt locomotive no MSA468, circa 1930

A group of six locomotives of 3 ft 6 in (1,067 mm) gauge were constructed for the Western Australian Government Railways in 1911 as their Class M. Further locomotives for this railway included seven more Class Ms in 1912.

The Australian Portland Cement Company took delivery of two 3 ft 6 in (1,067 mm) gauge locomotives in 1936 and 1939 as their no. 1 and no. 2 engines for the Quarry line at Fyansford, Victoria. These engines replaced two Vulcan Iron Works 0-6-0 saddle-tanks, numbers 4 and 5, on the mainline haul and were then later displaced by Australian Standard Garratt no. G33.

Fyansford no. 2, by then a combination of no. 2's centre unit and no. 1's engine units, was in service until 1966 when the quarry line was replaced by a conveyor belt. Fyansford no. 2 will be evaluated in 2015 for return to service on the Bellarine Railway, after having been moved there from the Menzies Creek Museum of the Puffing Billy Railway in 2010.

South Africa

Narrow gauge

Between 1919 and 1925 the South African Railways (SAR) placed five Class NG G11 Garratt locomotives with a 2-6-0+0-6-2 wheel arrangement in service on the Avontuur 2 ft (610 mm) narrow gauge line through the Langkloof and also in Natal. They were the first Garratt locomotives to enter service in South Africa.

Three locomotives were ordered from Beyer, Peacock and Company (BP) in 1914, together with an order for a single Cape gauge Class GA Garratt. Production was disrupted by World War I, however, and BP was only able to deliver the locomotives in 1919, after cessation of hostilities. All three, numbered 51 to 53, were erected at Uitenhage and put on trials on the Avontuur line in May 1920. These first three locomotives were not superheated. They had outside plate frames, Walschaerts valve gear, Belpaire fireboxes and used saturated steam and slide valves.

Restored SAR Class NG G11 no. 54 "Solly" at Chelsea, 3 April 1990

Having been proven successful during trials, another two locomotives were ordered from BP. Numbers 54 and 55 were delivered in 1925 and placed in service in Natal. Since these two were superheated, they had longer smokeboxes and were longer in overall length, while the incorporation of piston valves required alteration of the valve gear. The cabs of the second order locomotives were also improved to offer better protection to the crew.

The first three locomotives were soon transferred from the Avontuur line to Natal, where all but one remained for the rest of their service lives, until withdrawal by 1962. Number 51 was later returned to the Avontuur line as yard shunter at Humewood Road. The two locomotives of the second order remained in Natal until 1966, when they were both transferred to the Avontuur line where they remained until they were withdrawn from service in October 1974.

Cape gauge

SAR Class GA, circa 1921

In February 1921 the SAR placed a single experimental Class GA Garratt locomotive with a 2-6-0+0-6-2 wheel arrangement in service. It was ordered from BP in 1914, together with the order for the narrow gauge Class NG G11 Garratts, but wartime hostilities also delayed its delivery until 1920. It was the first Cape gauge Garratt to enter service in South Africa.

The locomotive was superheated, with a Belpaire firebox, a plate frame and Walschaerts valve gear. It was erected in the Durban shops and placed in trial service on the Natal main line. During the trials it was found that the absence of trailing carrying wheels on the engine units was a disadvantage, since it led to excessive flange wear on the driving wheels. As a result the locomotive remained the only representative of its Class and all subsequent Garratt models of the SAR were equipped with trailing Bissel trucks on their engine units. It was withdrawn from service in 1938 because of a cracked frame and scrapped.

United Kingdom

2-6-0+0-6-2 'Norfolk Hero'

10¼ gauge

One twenty-first century example of this wheel arrangement has been built for the Wells and Walsingham Light Railway, a 10 ¹⁄₄ in (260 mm) gauge heritage railway in Norfolk, England.

An earlier 2-6-0+0-6-2 Garratt, number 3, the "Norfolk Hero", was built by Neil Simkins in 1986. In 2010 the fleet was augmented by a new Garratt, Number 6, the "Norfolk Heroine".