| LSWR/SR K10 [1] | |||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 K10 number 386 at Eastleigh, 1950 | |||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
The London and South Western Railway K10 Class was a class of 40 4-4-0 steam locomotives designed for mixed traffic work. They were introduced on the London and South Western Railway in 1901 and 1902 to the design of Dugald Drummond, where they earned the nickname "Small Hoppers".
In order to satisfy a pressing requirement for mixed-traffic locomotives, Drummond adopted the solution of a small-wheeled 4-4-0 he had previously employed on the Caledonian Railway. The resulting K10 had the same 5 ft 7 in (1.702 m) diameter coupled wheels as the M7 and the boiler was interchangeable with the M7, 700 and C8 classes [2]
Forty of the class were subsequently outshopped from the LSWR's Nine Elms Locomotive Works. They were generally paired with a 6-wheel tender because of their intended short journey lengths, which included local stopping trains and medium-level freight haulage, but as with the later L11 class, some could occasionally be seen with a 4,000-imperial-gallon (18,000 l; 4,800 US gal) "watercart" tender for longer trips.
| Year | Batch | Quantity | LSWR numbers | Notes |
|---|---|---|---|---|
| 1901 | K10 | 5 | 329, 340–343 | |
| 1902 | L10 | 5 | 344–345, 347, 393–394 | |
| 1902 | P10 | 5 | 380–384 | |
| 1902 | S10 | 5 | 385–389 | |
| 1902 | V10 | 5 | 135–136, 390–392 | |
| 1902 | A11 | 5 | 137–141 | |
| 1902 | C11 | 5 | 142–146 | |
| 1902 | E11 | 5 | 149–153 | |
Livery under the LSWR was Drummond's LSWR Passenger Sage Green, with purple-brown edging and black and white lining. [3] Under Southern Railway ownership from grouping in 1923, the locomotives were outshopped in Richard Maunsell's darker version of the LSWR Sage Green with yellow lettering on the tender, with black and white lining. This livery was continued under Oliver Bulleid despite his experimentations with Malachite green, though the 'Southern' lettering on the tender was changed to the 'Sunshine Yellow' style. During the Second World War, members of the class outshopped form overhaul were turned out in wartime black. The class was haphazardly numbered by the LSWR. Numbering under the Southern retained the LSWR allocations. [1]
In 1947 nos.136/8/49 & nos.342/4/7/81/7/8 were placed out of use leaving just thirty-one to enter into British Railways ownership upon nationalisation in 1948. However, with withdrawals rapidly continuing only no.381 physically received its new BR number (30381 in ‘Sunshine Yellow’ and still with ‘Southern’ on its black unlined tender). But it too was withdrawn (April 1951) before no.389 (failed July 1951) and no.384 (already condemned but serviceable to August 1951). None of the K10 class carried the Railway Executive's Standard Livery for British Railways (as published in February 1949). [1]
The class shared the same inability to sustain their power over long distances as the C8s, leading to the K10s being employed only on occasional main line trips over short distances. The class therefore gained the nickname of "Small Hoppers" from their crews. The aforementioned defect was not a hindrance, with the class leading an admirable career on secondary routes. Due to the LSWR being primarily a passenger railway, there were few heavy goods services that would have proved too much for the design despite its flaws.
| Year | Quantity in service at start of year | Quantity withdrawn | Locomotive numbers | Notes |
|---|---|---|---|---|
| 1947 | 40 | 9 | 136/138/149, 342/344/347/381/387–388 | |
| 1948 | 31 | 8 | 139/143/145–146/150/340/343/392 | |
| 1949 | 23 | 15 | (30)135/137/141/144/152–153, (30)341/345/380/383/385–386/391/393–394 | BR numbers allocated but not carried |
| 1950 | 8 | 5 | (30)140/142/151, (30)329/390 | BR numbers allocated but not carried |
| 1951 | 3 | 3 | 30382, (30)384/389 | 30382 was the only K10 to physically carry its BR 30,000 series number. |
According to Dendy Marshall, [4] the main differences between the K10 "Small Hoppers" and the L11 "Large Hoppers" were:
None have been preserved.
The LSWR/SR H15 class was a class of 2-cylinder 4-6-0 steam locomotives designed by Robert Urie for mixed-traffic duties on the LSWR. Further batches were constructed by Richard Maunsell for the SR. They were given the nickname of "Junior King Arthur" due to the size of their driving wheels, the S15 and their N15 cousins had driving wheels which had a diameter of 5 foot and 7 inches and 6 foot and 7 inches respectively.
The SR N15X class or Remembrance class were a design of British 4-6-0 steam locomotives converted in 1934 by Richard Maunsell of the Southern Railway from the large LB&SCR L class 4-6-4 tank locomotives that had become redundant on the London–Brighton line following electrification. It was hoped that further service could be obtained from these locomotives on the Southern's Western Section, sharing the duties of the N15 class locomotives. The locomotives were named after famous Victorian engineers except for Remembrance, which was the LBSCR's memorial locomotive for staff members who died in the First World War.
The LSWR N15 class was a British 2–cylinder 4-6-0 express passenger steam locomotive designed by Robert W. Urie. The class has a complex build history spanning three sub-classes and eight 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 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).
The LSWR M7 class is a class of 0-4-4 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.
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.
The London and South Western Railway L11 class was a class of 4-4-0 steam locomotives designed for mixed traffic work. They were introduced in 1903 and were nicknamed "Large Hoppers". As with most other Drummond productions, the locomotive had two inside cylinders and Stephenson link valve gear.
The London and South Western Railway L12 class was a class of 20 4-4-0 steam locomotives designed for express passenger work by Dugald Drummond. They were introduced to the London and South Western Railway network in 1904. Despite the class being an unremarkable continuation of the Drummond lineage, one member was involved in the infamous Salisbury rail crash in June 1906. None of the class survived into preservation after their brief career in British Railways ownership.
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.
Robert Wallace Urie was a Scottish locomotive engineer who was the last chief mechanical engineer of the London and South Western Railway.
The London and South Western Railway T9 class was 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.
The LSWR 415 class is a steam tank locomotive of 4-4-2T wheel arrangement, 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).
The LSWR 46 Class was a class of 4-4-0 passenger tank locomotive designed by William Adams for the London and South Western Railway. None have survived for preservation.
The LSWR Class S11 was a class of 10 4-4-0 steam locomotives designed for express passenger work by Dugald Drummond. They were introduced to services on the London and South Western Railway in 1903. None of the class survived into preservation after their brief career in British Railways ownership.
The London and South Western Railway F13 class was a class of 4-6-0 locomotives designed by Dugald Drummond for the London and South Western Railway (LSWR).
The LSWR Class T14 was a class of ten 4-6-0 locomotives designed by Dugald Drummond for express passenger use on the London and South Western Railway and constructed at Eastleigh in 1911–12.
The LSWR E14 Class was a class of 4-6-0 locomotive designed by Dugald Drummond for the London and South Western Railway.
The LSWR G14 class was a class of 4-6-0 locomotive designed by Dugald Drummond for the London and South Western Railway.
The LSWR P14 class was a class of 4-6-0 locomotive designed by Dugald Drummond for the London and South Western Railway.
The LSWR D15 class 4-4-0 was the last steam locomotive design by Dugald Drummond for the London and South Western Railway in 1912. By 1912, Dugald Drummond had built several classes of unsuccessful 4-6-0 express passenger locomotives. The result of these failures was that when he designed what was to be his last class in 1911, a new 4-4-0 design emerged from Eastleigh Works in February 1912, with what was to be the first of his D15 class.
The LSWR C8 class was the first class of 4-4-0 express steam locomotives designed by Dugald Drummond for the London and South Western Railway and introduced in 1898. According to Marshall they "were of orthodox design, very much like engines which Drummond had put on the Caledonian". Marshall gives few other details, except to say that they were numbered 290-299 and had 18in x 26in cylinders. H.C. Casserley states that they were very similar to the Caledonian Railway 66 class. They used a similar boiler to the Drummond M7 0-4-4T and 700 Class 0-6-0 engines built for the LSWR. They originally used a similar tender to the 700 class, but these were later replaced with Drummond's 8 wheeled bogie "watercart" tenders. They were not particularly good steamers, due to their firebox being too small. None were ever superheated, and they were withdrawn after lives of 35-40 years. In November 1898 No. 291 worked a train carrying the Grand Duke and Duchess Serge of Russia from Windsor through to Dover (LCDR).
 | Wikimedia Commons has media related to LSWR K10 class . |