LNWR Class G

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LNWR Class G
LNWR locomotive No. 2653 G Class.jpg
No. 2653 in photographic grey livery
Type and origin
Power typeSteam
Designer George Whale
Builder Crewe Works
Build date1910
Total produced60
Rebuilder Crewe Works
Rebuild date1906–17
Number rebuilt32 from Class B
Specifications
Configuration:
   Whyte 0-8-0
   UIC D n2
Gauge 4 ft 8+12 in (1,435 mm)
Driver dia.4 ft 5.5 in (1.359 m)
Fuel typeCoal
Boiler pressure160 psi (1.10 MPa)
Heating surface2,043.25 sq ft (189.824 m2)
Cylinders 2 inside
Cylinder size 20.5 by 24 inches (520 mm × 610 mm)
Career
Operators London and North Western Railway, London, Midland and Scottish Railway
Disposition1 rebuilt to Class G1 1912
91 rebuilt to Class G1 1920–37

The London and North Western Railway (LNWR) Class G were several related classes of 0-8-0 steam locomotives. These 0-8-0s were the principal work-horses for freight traffic on the latter-day London & North Western.

Contents

History

32 of this class were rebuilt from 4-cylinder compound Class B between 1906 and 1917. The outside high-pressure cylinders were removed and the inside low-pressure cylinders were re-used, in their original position, to make a two-cylinder simple expansion engine. The boiler pressure was reduced from 200 psi to 160 psi to keep the tractive effort approximately the same. [1] The rebuilt engines retained their old numbers. Additionally, 60 new Gs were built in 1910. The rebuilt engines were easily distinguished from the new builds by having "piano fronts".

Rebuilding

The first of the class, LNWR No. 2653, was rebuilt to Class G1 in 1912. The remaining 91 engines were inherited by the LMS in 1923. LMS numbers were 9077-9144. The LMS rebuilt them all to Class G1 between May 1924 and 1937, thus rendering the class extinct.

Related Research Articles

George Whale was an English locomotive engineer who was born in Bocking, Essex, and educated in Lewisham, London. He worked for the London and North Western Railway (LNWR).

Locomotives of the London and North Western Railway. The London and North Western Railway (LNWR) Locomotive Department was headquartered at Crewe from 1862. The Crewe Works had been built in 1840–43 by the Grand Junction Railway (GJR).

<span class="mw-page-title-main">LNWR George the Fifth Class</span> Class of 90 two-cylinder 4-4-0 passenger locomotives

The London and North Western Railway (LNWR) George the Fifth Class was a class of 4-4-0 passenger steam locomotive.

<span class="mw-page-title-main">LNWR Whale Precursor Class</span> Type of steam locomotive

The London and North Western Railway (LNWR) "Precursor" Class was a type of 4-4-0 ("American") steam locomotive designed by the company's Chief Mechanical Engineer, George Whale. Introduced in 1904, it should not be confused with the LNWR 2-4-0 "Precursor" Class of 1874 designed by Francis Webb, the last example of which was scrapped in 1895. In 1906, a 4-4-2T ("Atlantic") tank variant of Webb's engine, the "Precursor Tank" Class, also entered service.

<span class="mw-page-title-main">LNWR Whale Experiment Class</span>

The London and North Western Railway (LNWR) Experiment Class was a class of 4-6-0 steam locomotive designed by George Whale.

<span class="mw-page-title-main">LNWR Claughton Class</span>

The London and North Western Railway (LNWR) Claughton Class was a class of 4-cylinder express passenger 4-6-0 steam locomotives.

<span class="mw-page-title-main">LNWR Jubilee Class</span>

The London and North Western Railway (LNWR) Jubilee Class was a class of 4-4-0 4-cylinder compound locomotives by F.W. Webb. A total of forty were built from 1897–1900.

<span class="mw-page-title-main">LNWR Alfred the Great Class</span>

The London and North Western Railway (LNWR) Alfred the Great class, after modification known as the Benbow Class was a class of 4-4-0 4-cylinder compound locomotives by F.W. Webb. A total of forty were built from 1901–1903. They were a development of the Jubilee Class, with a slightly larger boiler.

<span class="mw-page-title-main">LNWR Class A</span>

The London and North Western Railway (LNWR) Class A was a class of 0-8-0 steam locomotives. From 1893 to 1900, Crewe Works built 111 of these engines, which had a three-cylinder compound arrangement, and were designed by Francis Webb. According to the LNWR Society, 110 were built between 1894 and 1900.

<span class="mw-page-title-main">LNWR Class B</span>

The London and North Western Railway (LNWR) Class B was a class of 0-8-0 steam locomotives introduced in 1901. A development of the three-cylinder compound Class A, they had a 4-cylinder compound arrangement. 170 were built between 1901 and 1904.

<span class="mw-page-title-main">LNWR Class C</span>

The London and North Western Railway (LNWR) Class C was a class of 0-8-0 steam locomotives. They were two cylinder simple expansion rebuilds of the three-cylinder Class A designed by F.W. Webb. Fifteen Class As were converted to Class C between 1904 and 1906 by George Whale.

<span class="mw-page-title-main">LNWR Class C1</span>

The London and North Western Railway (LNWR) Class C1 was a class of 0-8-0 steam locomotives. 34 were rebuilt by Charles Bowen Cooke from Class A 3-cylinder compounds between 1909 and 1912.

<span class="mw-page-title-main">LNWR Class D</span>

The London and North Western Railway (LNWR) Class D was a class of 0-8-0 steam locomotives. They were simple engine rebuilds of earlier Webb Class A three-cylinder compound engines.

<span class="mw-page-title-main">LNWR Class E</span>

The London and North Western Railway (LNWR) Class E was a class of 2-8-0 steam locomotives in service between 1904 and 1928.

<span class="mw-page-title-main">LNWR Class F</span>

The London and North Western Railway (LNWR) Class F was a class of 2-8-0 steam locomotives in service between 1906 and 1928.

<span class="mw-page-title-main">LNWR Class G1</span> Class of two-cylinder 0-8-0 steam locomotives

The London and North Western Railway (LNWR) Class G1 was a class of 0-8-0 steam locomotives. It was a superheated version of the LNWR Class G with 8 inch piston valves. The prototype was rebuilt in 1912 from a member of Class G and a further 170 new locomotives were built between 1912 and 1918. In addition, 278 older locomotives were rebuilt to the G1 specification between 1917 and 1934.

<span class="mw-page-title-main">LNWR Class G2</span>

The London and North Western Railway (LNWR) Class G2 is a class of 0-8-0 steam locomotives. 60 were built at Crewe Works in 1921–1922. Uniquely amongst classes of LNWR 8-coupled tender engines, they were not rebuilt from or into other classes. Somewhat confusingly, the LNWR Class G2a is sometimes considered a subclass, but not in this article. They were classified by the London, Midland and Scottish Railway (LMS) as 5, from 1928 7F.

<span class="mw-page-title-main">LNWR Class G2A</span>

The London and North Western Railway (LNWR) Class G2A was a class of 0-8-0 steam locomotives. They were upgraded from LNWR Class G1 principally by the fitting of a higher pressure boiler. Some of the G2As subsequently received lower pressure boilers on overhaul, taking them back into Class G1.

<span class="mw-page-title-main">LNWR 4ft Shunter</span>

The London and North Western Railway (LNWR) 4ft Shunter was a class of 0-4-0ST steam locomotives. Introduced in 1863 by Ramsbottom, 26 were built in 1863–1865, 10 in 1870, 10 in 1872, and 10 in 1892. The last three of the latter batch were soon rebuilt as 0-4-2ST crane tanks. They survived into LMS ownership in 1923 and the last one was withdrawn in 1933.

References

  1. LNWR Society. "Goods Engines of LNWR - 'G' Class". Lnwrs.org.uk. Retrieved 9 April 2012.

Further reading