| 词条 | GER Class D27 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
| name = GER Class D27 | powertype = Steam | image = GER 2-2-2 Class D27 No1000.jpg | alt = | caption = GER 1000, the first of the 1893 batch | designer = James Holden | builder = Stratford Works | ordernumber = | serialnumber = | buildmodel = | builddate = 1889–1893 | totalproduction = 21 | rebuilder = | rebuilddate = | numberrebuilt = | whytetype = 2-2-2 | uicclass = 1A1 n2 | gauge = {{track gauge|ussg}} | leadingdiameter = {{convert|4|ft|0|in|m|3|abbr=on}} | driverdiameter = {{convert|7|ft|0|in|m|3|abbr=on}} | trailingdiameter = {{convert|4|ft|0|in|m|3|abbr=on}} | minimumcurve = | wheelbase = {{convert|36|ft|7|in|m|2|abbr=on}} | length = {{convert|48|ft|2|in|m|2|abbr=on}} over buffers | width = | height = | axleload = | weightondrivers = {{long ton|17|10}} | locoweight = {{long ton|40|3.5}} | tenderweight = | locotenderweight = | tendertype = | fueltype = Coal, some fuel oil | fuelcap = | watercap = | tendercap = | sandcap = | boiler = | boilerpressure = {{convert|140|lbf/in2|kPa|0|abbr=on}} later {{convert|160|lbf/in2|kPa|0|abbr=on}} | feedwaterheater = | firearea = {{convert|18.0|sqft|m2|sigfig=3|abbr=on}} | tubearea = | fluearea = | tubesandflues = | fireboxarea = | totalsurface = {{convert|1199.5|sqft|m2|abbr=on}} | superheatertype = | superheaterarea = | cylindercount = Two, inside | cylindersize = {{convert|18|x|24|in|abbr=on}}, later {{convert|18|x|24|in|abbr=on}} | valvegear = | valvetype = | valvetravel = | valvelap = | valvelead = | transmission = | maxspeed = | poweroutput = | tractiveeffort = {{convert|11016|lbf|kN|2|abbr=on}}, later {{convert|13114|lbf|kN|2|abbr=on}} | factorofadhesion = | trainheating = | locobrakes = | locobrakeforce = | trainbrakes = | safety = | operator = Great Eastern Railway | operatorclass = D27 | powerclass = | numinclass = | fleetnumbers = | officialname = | nicknames = | axleloadclass = | locale = | deliverydate = | firstrundate = | lastrundate = | preservedunits = | restoredate = | withdrawndate = 1901–1907 | disposition = All Scrapped | currentowner = | notes = }} The GER Class D27 was a class of 2-2-2 steam tender locomotives designed by James Holden for the Great Eastern Railway. HistoryIn 1888 Holden experimented by removing the side rods of T19 No. 721 to form a 2-2-2.[1] In 1889 the first of a new class appeared: initially No. 740 (later 789 and 780) which had been built on a 'Locomotive and Machinery' account. This was followed by two batches of ten on the more normal 'Letter' account.[2] in 1893. They were built with {{convert|18|x|24|in|mm|0|adj=on}}[3] inside cylinders powered by a {{convert|140|lbf/in2|kPa|0|adj=on}} boiler. They were later rebuilt with {{convert|18|x|25|in|mm|0|adj=on}} and {{convert|160|lbf/in2|kPa|0|adj=on}} boilers.[2]
One of their main spheres was on the Joint Line working expresses to York. In 1896 the class inaugurated the epic making non-stop run to North Walsham using oil-firing. Rous-Martin[4] found that the singles climbed Brentwood Bank more rapidly than the 2-4-0s. See also Ahrons (1951). Nine locomotives were withdrawn between 1901 and 1903. The surviving eight locomotives in the 770-series were transferred to the duplicate list in July 1904, and had their number prefixed with a "0". The remaining fourteen were withdrawn between 1904 and 1907.[5]
References1. ^{{harvnb|Allen|1961|p=114}} {{refbegin}}2. ^1 2 {{harvnb|Aldrich|1969|p=34}} 3. ^{{harvnb|Rous-Marten|1902|p=272}} 4. ^Rous-Marten 1898a 5. ^1 {{harvnb|Aldrich|1969|p=35}}
| last = Ahrons | first = E. L. | editor = Asher, L. L. | authorlink = E. L. Ahrons | title = Locomotive and train working in the latter part of the nineteenth century. (Volume 1) | publisher=Heffer | year= 1951 | location = Cambridge | url = | id = }}
| last = Allen | first = C. J. | authorlink = Cecil J. Allen | title = The Great Eastern Railway, 3rd edition | edition = 3rd | publisher=Ian Allan | year= 1961 | location = London | url = | id = |ref=harv }}
| last = Rous-Marten | first = C. | title = British express engines | publisher=Int. Rly Congress | date= 1898a | url = | id = }}
| last = Rous-Marten | first = C. | title = | journal=Railway Magazine | volume = 11 | pages = 272 | year= 1902 | url = | id = |ref=harv }}{{refend}} External links{{commons category|GER Class D27}}
5 : Great Eastern Railway locomotives|2-2-2 locomotives|Railway locomotives introduced in 1889|Standard gauge steam locomotives of Great Britain|Scrapped locomotives |
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