{{Short description|Class of British steam locomotives}} {{Use dmy dates|date=October 2017}} {{Use British English|date=October 2017}} {{one source|date=December 2014}} {{Infobox locomotive | name = Midland Railway 1252 class | powertype = Steam | image = Ashchurch 19 railway station geograph-2221418.jpg | alt = | caption = LMS 1251 at {{stnlnk|Ashchurch}}, September 1946 | designer = [[Samuel Waite Johnson|Samuel W. Johnson]] | builder = [[Neilson and Company]] | ordernumber = | serialnumber = | buildmodel = | builddate = 1875–1876 | totalproduction = 30 | rebuilder = | rebuilddate = | numberrebuilt = | whytetype = [[0-4-4T]] | uicclass = B2′ n2t | gauge = {{track gauge|ussg}} | driverdiameter = {{convert|5|ft|6+1/2|in|mm|0|abbr=on}} | trailingdiameter = {{convert|3|ft|0|in|mm|0|abbr=on}} | minimumcurve = | wheelbase = | length = | width = | height = | axleload = | weightondrivers = | locoweight = {{long ton|53|4}} | fueltype = | fuelcap = | watercap = | tendercap = | sandcap = | boiler = MR type C | boilerpressure = {{convert|140|lbf/in2|MPa|2|abbr=on}} | feedwaterheater = | firearea = | tubearea = | fluearea = | tubesandflues = | fireboxarea = | totalsurface = | superheatertype = | superheaterarea = | cylindercount = | cylindersize = {{convert|17|x|24|in|mm|0|abbr=on}} | valvegear = [[Stephenson valve gear|Stephenson]] | valvetype = | valvetravel = | valvelap = | valvelead = | transmission = | maxspeed = | poweroutput = | tractiveeffort = {{convert|13810|lbf|kN|2|abbr=on}} | factorofadhesion = | trainheating = | locobrakes = | locobrakeforce = | trainbrakes = | safety = | operator = [[Midland Railway|MR]] » [[London, Midland and Scottish Railway|LMS]] » [[British Railways|BR]] | operatorclass = | powerclass = 1P | numinclass = | fleetnumbers = | officialname = | nicknames = | axleloadclass = | locale = | deliverydate = | firstrundate = | lastrundate = | withdrawndate = 1920–1954 | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = All scrapped }} The '''Midland Railway 1252 class''' was a class of thirty [[0-4-4T]] locomotives built by [[Neilson and Company]] in 1875–1876 to the design of [[Samuel Waite Johnson]]. They were a development of the [[Midland Railway 6 Class|6 Class]]. Originally numbers 1262–1281 and 1252–1261. Under the [[Midland Railway]]'s 1907 renumbering scheme they became 1236–1265.
==Construction history== The Midland used nominal {{convert|5|ft|6+1/2|in|mm|0|adj=on}} diameter [[driving wheels]] for this class, whereas in all later engines (starting with the [[Midland Railway 1532 Class|1532 Class]]) they used nominal {{convert|5|ft|3|in|mm|0|adj=on}} diameter wheels. They were given the [[power classification]] 1P.
{| class=wikitable style=text-align:center |+ Table of orders and numbers{{sfn|Baxter|1982a|pp=136–137}} ! Original No. !! 1907 (& LMS) No. !! Manufacturer !! Works Nos. !! Year !! Notes |- | 1262–1274 || 1236–1246 || [[Neilson & Co.]] || 2038–2050 || 1875 || align=left | |- | 1280–1281 || 1247–1248 || [[Neilson & Co.]] || 2051–2052 || 1876 || align=left | |- | 1252–1261 || 1254–1265 || [[Neilson & Co.]] || ? – ? || 1876 || align=left | |- | 1275–1279 || 1249–1253 || [[Neilson & Co.]] || ? – ? || 1876 || align=left | |}
==Service history== All but one locomotive passed to the [[London, Midland and Scottish Railway]] (LMS) at the [[Railways Act 1921|1923 grouping]]; and nine, Nos 1239/46/47/49/51/52/55/60/61 were still in [[list of LMS locomotives as of 31 December 1947|LMS stock at the end of 1947]] and passed to [[British Rail]]ways (BR). BR allocated them numbers 58030–58038, though only three 58033/36/38 received them before withdrawal. All members of the class were withdrawn and scrapped by 1954.
{| class="wikitable" style=text-align:center |+ Table of withdrawals{{sfn|Baxter|1982a|pp=136–137}} ! Year !! Quantity in<br/>service at<br/>start of year !! Quantity<br/>withdrawn !! Locomotive numbers !! Notes |- | 1920 || 30 || 1 || align=left | 1245 || align=left | |- | 1925 || 29 || 1 || align=left | 1248 || align=left | |- | 1926 || 28 || 1 || align=left | 1254 || align=left | |- | 1927 || 27 || 2 || align=left | 1243, 1264 || align=left | |- | 1928 || 25 || 1 || align=left | 1256 || align=left | |- | 1929 || 24 || 2 || align=left | 1244, 1265 || align=left | |- | 1930 || 22 || 2 || align=left | 1237, 1262 || align=left | |- | 1931 || 20 || 1 || align=left | 1257 || align=left | |- | 1932 || 19 || 3 || align=left | 1241, 1242, 1250 || align=left | |- | 1934 || 16 || 2 || align=left | 1236, 1259 || align=left | |- | 1935 || 14 || 1 || align=left | 1238 || align=left | |- | 1936 || 13 || 1 || align=left | 1263 || align=left | |- | 1937 || 12 || 1 || align=left | 1258 || align=left | |- | 1945 || 11 || 1 || align=left | 1240 || align=left | |- | 1946 || 10 || 1 || align=left | 1253 || align=left | |- | 1948 || 9 || 1 || align=left | 1262 || align=left | |- | 1949 || 8 || 3 || align=left | 1239, 1246, 1247 || align=left | |- | 1950 || 5 || 4 || align=left | 1251, 1252, 58036, 58033|| align=left | |- | 1954 || 1 || 1 || align=left | 58038 || align=left | |}
== References == {{Reflist}} *{{Baxter: British Locomotive Catalogue 1825–1923|volume=3A}} *{{0-7110-0554-0|pages=27–28}}
== Further reading== * [[Bob Essery]] and [[David Jenkinson]] ''An Illustrated Review of Midland Locomotives vol 3'' * [[Bob Essery]] and [[David Jenkinson]] ''An Illustrated History of LMS Locomotives vol 4''
{{Midland Railway Locomotives}}
[[Category:Midland Railway locomotives|1252]] [[Category:0-4-4T locomotives]] [[Category:Railway locomotives introduced in 1875]] [[Category:Neilson locomotives]] [[Category:Standard-gauge steam locomotives of Great Britain]] [[Category:Scrapped locomotives]]