LSWR A12 class

Last updated

LSWR A12 class
Nine Elms Locomotive Works, 256, London and South Western Railway (L&SWR) 539, Jubilee-class (Ans 05373-0488).jpg
LSWR A12 class No. 539 in 1888
Type and origin
Power typeSteam
Designer William Adams
BuilderLSWR Nine Elms Works (50)
Neilson & Co. (40)
Build date1887–1894
Total produced90
Specifications
Configuration:
   Whyte 0-4-2
   UIC B1 n2
Gauge 4 ft 8+12 in (1,435 mm)
Driver dia.6 ft 1 in (1.854 m)
Trailing dia. 4 ft 0 in (1.219 m)
Boiler pressure160  lbf/in2 (1.10  MPa)
Cylinders Two, inside
Cylinder size 18 in × 26 in (457 mm × 660 mm)
Performance figures
Tractive effort 15,690  lbf (69.79  kN)
Career
Operators London and South Western Railway
Southern Railway
British Railways
Class LSWR: A12
SR: A12
BR: 1MT
NicknamesJubilees
Retired1928–1948
DispositionAll scrapped

The A12 locomotives of the London and South Western Railway were built between the years 1887 and 1895 to the design of William Adams. Ninety of the locomotives were built, fifty at Nine Elms Works and forty by Neilson and Company, although the latter together with the final twenty from Nine Elms were officially known as the O4 class. They were unusual for their time, with a wheel arrangement of 0-4-2. This arrangement was used by few of the other railway companies and never proved popular (although the Great Northern Railway had 150 such locomotives). They bore the nickname "Jubilees", because the first batch appeared in the Golden Jubilee of Queen Victoria's reign.

Contents

History

The 90 members of the class were built in batches, as shown in the following table.

YearOrderBuilderQuantityLSWR numbersNotes
1887A12LSWR Nine Elms10527–536 [1]
1888E1LSWR Nine Elms10537–546 [1]
1889M2LSWR Nine Elms10547–556 [1]
1893–94O4LSWR Nine Elms10597–606 [1]
1892–93 Neilson & Co. 4506–454540607–646 [2]
1894–95K6LSWR Nine Elms10647–656 [1]

All 90 passed to the Southern Railway in 1923, following the introduction of the Grouping Act.

Withdrawal

Withdrawals started in 1928, with four of the class surviving to Nationalisation. The four operated by British Railways were all withdrawn in its first year (1948), excluding DS3191 which was used for steam supply at Eastleigh Works and lasted until 1951. No members of the class have been preserved.

Table of withdrawals
YearQuantity in
service at
start of year
Quantity
withdrawn
Locomotive numbersNotes
1928906E529, E535, E542, E548, E552, E553
19298413E528, E531–E533, E536, E537, E540, E543, E544, E547, E549, E550, E556
1930713E527, E539, E546
1931686E530, E534, E538, E541, E545, E554
1932626551, 607, 608, 610, 653, 656
1933569602, 604, 626, 631, 633, 639, 645, 647, 651
1934471601
1935463603, 621, 635
1936434605, 616, 622, 655
1937394611, 619, 632, 640
1938353617, 628, 650
1939321646613, 620, 624, 625, 629, 642, 644 withdrawn and then reinstated
1944311555
19463012599, 600, 606, 612, 613, 615, 620, 623, 637, 641, 644, 649612 transferred to Departmental stock as 3191S, later BR DS3191; scrapped 1951
19471814597, 598, 609, 614, 624, 625, 630, 634, 638, 642, 643, 648, 652, 654
194844618, 627, 629, 636

Notes

Related Research Articles

<span class="mw-page-title-main">4-6-0</span> Railway steam locomotive wheel arrangement

A 4-6-0 steam locomotive, under the Whyte notation for the classification of steam locomotives by wheel arrangement, has four leading wheels on two axles in a leading bogie and six powered and coupled driving wheels on three axles with the absence of trailing wheels.

The Southern Railway took a key role in expanding the 660 V DC third rail electrified network begun by the London & South Western Railway. As a result of this, and its smaller operating area, its steam locomotive stock was the smallest of the 'Big Four' companies.

<span class="mw-page-title-main">BR Standard Class 7</span> Class of 55 two-cylinder 4-6-2 locomotives

The BR Standard Class 7, otherwise known as the Britannia Class, is a class of 4-6-2 Pacific steam locomotive designed under Robert Riddles for use by British Railways for mixed-traffic duties. 55 were constructed between 1951 and 1954. The design employed results from the 1948 locomotive exchanges undertaken in advance of further locomotive classes being constructed. Three batches were constructed at Crewe Works, before the publication of the 1955 Modernisation Plan.

<span class="mw-page-title-main">LSWR N15 class</span> Class of 74 two-cylinder 4-6-0 locomotives

The LSWR N15 class was a British 2–cylinder 4-6-0 express passenger steam locomotive designed by Robert Urie. The class has a complex build history spanning three sub-classes and ten years of construction from 1918 to 1927. The first batch of the class was constructed for the London and South Western Railway (LSWR), where they hauled heavy express passenger trains to the south coast ports and further west to Exeter. After the Lord Nelsons, they were the second biggest 4-6-0 passenger locomotives on the Southern Railway. They could reach speeds of up to 90 mph (145 km/h).

<span class="mw-page-title-main">SR West Country and Battle of Britain classes</span> Class of 110 three-cylinder 4-6-2 locomotives

The SR West Country and Battle of Britain classes, collectively known as Light Pacifics or informally as Spam Cans, or "flat tops", are air-smoothed 4-6-2 Pacific steam locomotives designed for the Southern Railway by its Chief Mechanical Engineer Oliver Bulleid. Incorporating a number of new developments in British steam locomotive technology, they were amongst the first British designs to use welding in the construction process, and to use steel fireboxes, which meant that components could be more easily constructed under wartime austerity and post-war economy.

<span class="mw-page-title-main">GWR 7800 Class</span>

The Great Western Railway (GWR) 7800 Class or Manor Class is a class of 4-6-0 steam locomotive. They were designed as a lighter version of the Grange Class, giving them a wider Route Availability. Like the 'Granges', the 'Manors' used parts from the GWR 4300 Class Moguls but just on the first batch of twenty. Twenty were built between 1938 and 1939, with British Railways adding a further 10 in 1950. They were named after Manors in the area covered by the Great Western Railway. Nine are preserved.

<span class="mw-page-title-main">Brighton railway works</span>

Brighton railway works was one of the earliest railway-owned locomotive repair works, founded in 1840 by the London and Brighton Railway in Brighton, England, and thus pre-dating the more famous railway works at Crewe, Doncaster and Swindon. The works grew steadily between 1841 and 1900 but efficient operation was always hampered by the restricted site, and there were several plans to close it and move the facility elsewhere. Nevertheless, between 1852 and 1957 more than 1200 steam locomotives as well as prototype diesel electric and electric locomotives were constructed there, before the eventual closure of the facility in 1962.

<span class="mw-page-title-main">LSWR M7 class</span> Class of 105 two-cylinder 0-4-4T locomotives

The LSWR M7 class is a class of 0-4-4T passenger tank locomotive built between 1897 and 1911. The class was designed by Dugald Drummond for use on the intensive London network of the London and South Western Railway (LSWR), and performed well in such tasks. Because of their utility, 105 were built and the class went through several modifications over five production batches. For this reason there were detail variations such as frame length. Many of the class were fitted with push-pull operation gear that enabled efficient use on branch line duties without the need to change to the other end of its train at the end of a journey.

<span class="mw-page-title-main">LSWR O2 class</span>

The LSWR O2 class is a class of 0-4-4T steam locomotive designed for the London and South Western Railway by William Adams. Sixty were constructed during the late nineteenth century. They were also the last steam engines to work on the Isle of Wight, with the final two being withdrawn in 1967. One has been preserved and is operational.

<span class="mw-page-title-main">LSWR B4 class</span>

The London and South Western Railway B4 class is a class of 0-4-0 tank engines originally designed for station piloting and dock shunting. They were later used extensively in Southampton Docks for nearly half a century.

<span class="mw-page-title-main">LSWR S15 class</span> British 2-cylinder 4-6-0 steam locomotive

The LSWR S15 class is a British 2-cylinder 4-6-0 freight steam locomotive designed by Robert W. Urie, based on his H15 class and N15 class locomotives. The class had a complex build history, spanning several years of construction from 1920 to 1936. The first examples were constructed for the London and South Western Railway (LSWR), where they hauled freight trains to the south coast ports and further west to Exeter, as well as occasional passenger work in conjunction with their larger-wheeled N15 class counterparts.

A number of different numbering and classification schemes were used for the locomotives owned by the Southern Railway (SR) and its constituent companies. This page explains the principal systems that were used.

<span class="mw-page-title-main">SECR N class</span> Class of English steam locomotives

The SECR N class was a type of 2-6-0 ("mogul") steam locomotive designed in 1914 by Richard Maunsell for mixed-traffic duties on the South Eastern and Chatham Railway (SECR). Built between 1917 and 1934, it was the first non-Great Western Railway (GWR) type to use and improve upon the basic design principles established by GWR Chief Mechanical Engineer (CME) George Jackson Churchward. The N class was based on the GWR 4300 Class design, improved with Midland Railway concepts.

<span class="mw-page-title-main">LSWR T9 class</span>

The London and South Western Railway T9 class is a class of 66 4-4-0 steam locomotive designed for express passenger work by Dugald Drummond and introduced to services on the LSWR in 1899. One example has been preserved after British Railways ownership. They were given the nickname of "Greyhounds" due to their speed, up to 85 miles per hour (137 km/h), and reliability.

<span class="mw-page-title-main">LSWR 415 class</span>

The LSWR 415 class is a 4-4-2T steam tank locomotive, with the trailing wheels forming the basis of its "Radial Tank" moniker. It was designed by William Adams and introduced in 1882 for service on the London and South Western Railway (LSWR).

<span class="mw-page-title-main">SECR N1 class</span> Class of 6 three-cylinder 2-6-0 locomotives

The SECR N1 class was a type of 3-cylinder 2-6-0 ('mogul') steam locomotive designed by Richard Maunsell for mixed traffic duties, initially on the South Eastern and Chatham Railway (SECR), and later operated for the Southern Railway (SR). The N1 was a development of the basic principles established by the Great Western Railway's (GWR) Chief Mechanical Engineer (CME) George Jackson Churchward and by Maunsell's previous N class design.

<span class="mw-page-title-main">SECR K and SR K1 classes</span> Two classes of 20 two-cylinder (K) and 1 three-cylinder (K1) 2-6-4T locomotives

The SECR K class was a type of 2-6-4 tank locomotive designed in 1914 by Richard Maunsell for express passenger duties on the South Eastern and Chatham Railway (SECR), which operated between London and south-east England. The Southern Railway (SR) K1 class was a three-cylinder variant of the K class, designed in 1925 to suit a narrower loading gauge. They were among the first non-Great Western Railway (GWR) types to use and improve upon the basic design principles of power and standardisation established by GWR Chief Mechanical Engineer (CME) George Jackson Churchward. The locomotives were based on the GWR 4300 class, improved by the Midland Railway's ideals of simplicity and ease of maintenance.

<span class="mw-page-title-main">SR Merchant Navy class</span> Class of 30 three-cylinder 4-6-2 locomotives

The SR Merchant Navy class is a class of air-smoothed 4-6-2 (Pacific) steam locomotives designed for the Southern Railway by Oliver Bulleid. The Pacific design was chosen in preference to several others proposed by Bulleid. The first members of the class were constructed during the Second World War, and the last of the 30 locomotives in 1949.

<span class="mw-page-title-main">South African Class 8 4-8-0</span>

The South African Railways Class 8 4-8-0 of 1902 was a steam locomotive from the pre-Union era in the Cape of Good Hope.

The LSWR 348 class was a class of passenger 4-4-0 steam locomotives designed by W. G. Beattie to replace his father's 2-4-0 classes on the Salisbury-Exeter expresses of the London and South Western Railway. The class proved to be an abject failure, resulting in W.G. Beattie's early retirement in December 1877.

References