| 词条 | LSWR K10 class | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
|powertype=Steam |name = LSWR/SR K10[1] |image = 386 K10.jpg |caption = K10 number 386 at Eastleigh, 1950 |designer = Dugald Drummond |builder = LSWR Nine Elms Works |builddate = 1901-1902 |totalproduction = 40 |whytetype = 4-4-0 |gauge = {{RailGauge|ussg|allk=on}} |leadingdiameter = {{convert|3|ft|7|in|m|3|abbr=on}} |driverdiameter = {{convert|5|ft|7|in|m|3|abbr=on}} |length = ? ft ? in (? m) |locoweight = {{Long ton|46|14}} |fueltype = Coal |fuelcap = {{Long ton|5|0}} |watercap = {{convert|4,000|impgal|abbr=on}} |cylindercount = Two, inside |cylindersize = {{convert|18+1/2|x|26|in|mm|0|abbr=on}} |boilerpressure = {{convert|175|lbf/in2|abbr=on}} |tractiveeffort = {{convert|19,755|lbf|abbr=on|lk=on}} |operator=London and South Western Railway, Southern Railway, British Railways |powerclass = LSWR/SR: F BR: 1MT |locale = Great Britain |withdrawndate = 1947–1951 |operatorclass= |disposition = All scrapped }} 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". BackgroundIn 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 {{convert|5|ft|7|in|m|3|abbr=on}} diameter coupled wheels as the M7 and the boiler was interchangeable with the M7, 700 and C8 classes[2] Construction historyForty 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 {{convert|4,000|impgal|adj=on}} "watercart" tender for longer trips.
Livery and numberingLSWR and SouthernLivery 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] Post-1948 (nationalisation)Twenty-three passed into British Railways ownership on nationalisation in 1948. Livery after nationalisation was initially Southern livery with 'British Railways' on the tender, and an 'S' prefix on the number. The class was subsequently outshopped in BR Mixed Traffic Black with red and white lining, with the BR crest on the tender.[4] Locomotive numbering was per BR standard practice, from 30135 to 30153 and 30329 to 30394. However, thirteen of the locomotives had been withdrawn by the end of 1948, resulting in gaps in the sequence.[4] Operational detailsThe 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.
Comparison with L11According to Dendy Marshall,[5] the main differences between the K10 "Small Hoppers" and the L11 "Large Hoppers" were:
PreservationNone have been preserved. References1. ^1 Bradley (1986).{{page needed|date=March 2012}} {{refbegin}}2. ^Casserley (1971) / Burtt [1949]. pp. 125, 126. 3. ^Swift (2006){{page needed|date=March 2012}} 4. ^1 Longworth (2005).{{page needed|date=March 2012}} 5. ^Dendy Marshall|Kidner|1963}}|Dendy Marshall & Kidner (1963), p. 176
Further reading
External links{{Commons category|LSWR K10 class}}
5 : London and South Western Railway locomotives|4-4-0 locomotives|Railway locomotives introduced in 1901|Scrapped locomotives|Standard gauge steam locomotives of Great Britain |
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