词条 | LNER Peppercorn Class A1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
释义 |
|name= LNER Peppercorn Class A1 |powertype= Steam |image= Gateshead locomotive sheds.jpg |alt= Steam locomotive with four small carrying wheels at the front, six large driving wheels, two small carrying wheels below the cab, and a tender |caption= 60155 Borderer by the coaling stage at Gateshead depot in April 1964 |designer= Arthur Peppercorn |builder= Doncaster Works Darlington Works |builddate= 1948 - 1949, 2008 |whytetype= 4-6-2 |length= {{convert|72|ft|11+3/4|in|2|abbr=on}} |height= {{convert|13|ft|1|in|2|abbr=on}} |width= {{convert|9|ft|2+7/8|in|2|abbr=on}} |leadingdiameter= {{convert|3|ft|2|in|3|abbr=on}} |driverdiameter= {{convert|6|ft|8|in|3|abbr=on}} |trailingdiameter= {{convert|3|ft|8|in|3|abbr=on}} |boiler= Diagram 118 {{convert|6|ft|5|in|abbr=on}} diameter {{convert|29|ft|2|in|abbr=on}} length |boilerpressure= {{convert|250|psi|abbr=on|lk=on}} |cylindercount = 3 |cylindersize= {{convert|19|x|26|in|abbr=on|0|lk=on}} |firearea= {{convert|50.0|sqft|abbr=on}} |fireboxarea= {{convert|245.3|sqft|abbr=on}} |tubearea= {{convert|1211.6|sqft|abbr=on}} |fluearea= {{convert|1004.5|sqft|abbr=on}} |totalsurface= {{convert|2461.4|sqft|abbr=on}} |superheaterarea= {{convert|697.7|sqft|abbr=on}} |tractiveeffort= {{convert|37400|lbf|kN|abbr=on}} |poweroutput={{convert|2700|PS|lk=on|abbr=on}}{{citation needed|date=February 2012}} |valvegear= Walschaerts |maxspeed= {{convert|100|mph|abbr=on}} |axleload= {{convert|22.1|LT|t ST|abbr=on}} |weightondrivers= {{convert|66.55|LT|t ST|abbr=on}} |locoweight= {{convert|105.2|LT|t ST|abbr=on}} |tenderweight= {{convert|60.9|LT|t ST|abbr=on}} |locotenderweight= {{convert|166.1|LT|t ST|abbr=on}} |fueltype= Coal |fuelcap= {{convert|9.0|LT|t ST|abbr=on}} |watercap= {{convert|5000|impgal|L USgal|abbr=on}} |locale= North Eastern Region of British Railways |powerclass= BR: 8P6F |numinclass= 49 original, plus 1 completed 2008 |fleetnumbers= 60114 - 60162, 60163 |firstrundate= August 1948 |lastrundate= June 1966 |withdrawndate= October 1962 - June 1966 |scrapdate= 1962-1966 |disposition= Original 49 withdrawn and scrapped, 1 built in 2008 and Mainline Registered }} The London and North Eastern Railway (LNER) Peppercorn Class A1 is a type of express passenger steam locomotive. Forty-nine original Peppercorn Class A1s were built to the design of Arthur Peppercorn (who was the last Chief Mechanical Engineer (CME) of the London and North Eastern Railway) during the early British Railways era, but all were scrapped with the discontinuation of steam, with none of the original production run surviving into preservation. In 2008, a brand new 50th Peppercorn A1 locomotive, 60163 Tornado, was completed. BackgroundMost of the former LNER Class A1 locomotives designed by Sir Nigel Gresley had been rebuilt as LNER Class A3 locomotives prior to this class being conceived. The few straggling LNER Class A1 locomotives that remained unrebuilt during the tenure of Peppercorn's predecessor, Edward Thompson, were redesignated by him as Class A10s in preparation for the construction of his new Class A1 locomotives. Thompson rebuilt the pioneer LNER pacific Great Northern in 1945; originally this was the new Class A1, but the rebuild was not repeated. Instead, initiated by Thompson but largely taken forward by his successor Arthur Peppercorn, Great Northern was designated Class A1/1, and a new class of Peppercorn A1s ordered. The locomotives were designed to cope with the heaviest passenger trains in the post-war period on the East Coast Main Line (London – York – Newcastle – Edinburgh – Aberdeen) which consisted normally of trains with up to 15 coaches and up to 550 tons. The Peppercorn A1s were able to pull such a train on the flat at a speed of 60–70 mph (95-110 km/h). Like previous LNER pacifics, the class had a 3-cylinder arrangement. The chimney system was of the type Double-Kylchap. Original locomotivesConstructionThe new A1s were ordered by the LNER but delivered after that company had been nationalised to form part of British Railways at the start of 1948. The 49 engines were built at the Eastern Region's Doncaster and Darlington works between 1948 and 1949.
Withdrawal and preservationBy summer of 1966 all 49 class members had gone for scrap. The last to be withdrawn from stock was No. 60145 Saint Mungo after a working life of just 17 years. 60145 Saint Mungo was planned to be preserved by Geoff Drury, however, it ultimately was unsuccessful and none of the original locomotives were preserved. [2]
List of original locomotivesBelow is a list of original Peppercorn A1 Locomotives[3][4][5][6]{{page needed|date=December 2016}}[7]{{page needed|date=December 2016}}[8][9]
Notes on namesThe names of the A1s[10] were an eclectic mix including:
No. 60163 Tornado{{main|60163 Tornado}}None of the original production run of 49 Peppercorn A1s survived the scrapyard to be preserved, however in 2008 a brand new 50th A1 based on the Peppercorn patterns, 60163 Tornado, was completed as the evolved member of the class.[11] Accidents and incidents
ModelsBachmann Branchline and Hornby make models in OO gauge, Graham Farish produce a model in N gauge and Accucraft (UK) make a live steam model in gauge 1. References1. ^{{harvnb|Boddy|Neve|Yeadon|1973|p=193}} {{refbegin}}2. ^{{cite web|title=60145 - Saint Mungo|url=https://www.a1steam.com/2010/02/03/60145-saint-mungo/|website=A1 Steam|publisher=A1 Steam}} 3. ^{{cite web| url=http://www.lner.info/locos/A/a1peppercorn.shtml| title=The Peppercorn A1 Pacifics| website=LNER Encyclopedia}} 4. ^Longworth{{full|date=December 2016}} (not including Tornado) 5. ^{{cite web| url=http://www.railuk.info/steam/getsteamclass.php?item=A1| website=Railuk database| title=Class Details}} (not including Tornado) 6. ^{{harvnb|Boddy|Neve|Yeadon|1973}} (not including Tornado) 7. ^{{harvnb|Yeadon|1991}} (not including Tornado) 8. ^A1LST history section{{full|date=December 2016}} (not including Tornado) 9. ^{{cite book| title=Ian Allan ABC of British Railways Locomotives, part 4| edition=Summer 1961| pages=26-27}} Names of 60114-60162 are given but it also includes the LNER Thompson Class A1/1 60113 Great Northern in the list, making 50 locomotives. 10. ^{{cite web| url=http://www.a1steam.com/index.php?option=com_content&view=article&id=53&Itemid=69| archiveurl=https://web.archive.org/web/20090723080859/http://www.a1steam.com/index.php?option=com_content&view=article&id=53&Itemid=69| archivedate=23 July 2009| title=Names of A1s| website=60163 Tornado| publisher=A1 Steam Locomotive Trust}} 11. ^{{cite news |url=http://news.bbc.co.uk/1/hi/england/north_yorkshire/7737382.stm |title=New steam loco ready for service |date=19 November 2008|accessdate=19 November 2008 |quote=The first new steam engine to be built in the UK for almost 50 years is ready for service after successfully completing all its trial runs ... Tornado, a Peppercorn class A1 Pacific steam locomotive ... |work=BBC News}} 12. ^{{cite book |last=Trevena |first=Arthur |title=Trains in Trouble: Vol. 2. |year=1981 |publisher=Atlantic Books |location=Redruth |isbn=0-906899-03-6 |page=34 }} 13. ^https://www.a1steam.com/2018/04/14/the-ebor-flyer-update/ Tornado motion failure 14. ^https://www.a1steam.com/2018/04/17/tornado-repair-update/ Repairs update
External links{{commons category|LNER Peppercorn Class A1}}
6 : London and North Eastern Railway locomotives|4-6-2 locomotives|Railway locomotives introduced in 1948|Standard gauge steam locomotives of Great Britain|2′C1′ h3 locomotives|Scrapped locomotives |
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