| 词条 | Sri Lanka Railways W1 |
| 释义 |
| name = Sri Lanka Railways Class W1 | powertype =Diesel | image = Colombo_sri_lanka_Railway_-Train.jpg | alt = | caption = Class W1 No. 663 | builder = Rheinstahl Henschel | ordernumber = | serialnumber = | buildmodel = DHG-1200 [1] | builddate = 1969 | totalproduction = 45 | rebuilder = Sri Lanka Railways | rebuilddate = | numberrebuilt = | aarwheels = B-B | uicclass = | gauge = {{track gauge|1676mm|lk=on}} | trucks = | bogies = | wheeldiameter = | trailingdiameter = | minimumcurve = | wheelbase = | length = {{convert|12.8|m|ftin|frac=8}}[2] | width = | height = | axleload = | weightondrivers = | locoweight = {{convert|60.5|t|abbr=on}} | fueltype = | fuelcap = | lubecap = | coolantcap = | watercap = | sandcap = | powersupply = | consumption = | watercons = | primemover = Paxman 12YJXL[1] | rpmrange = 1500 | enginetype = V12 4 stroke diesel[1] | aspiration = | displacement = | alternator = | generator = | tractionmotors = | headendpower = | cylindercount = | cylindersize = | transmission = Voith L 520 R U2 [3] | multipleworking = | maxspeed = {{Convert|80|km/h|abbr=on}} | poweroutput = {{convert|1150|HP|abbr=on}} | tractiveeffort = | factorofadhesion = | trainheating = | locobrakes = | locobrakeforce = | trainbrakes = Vacuum | safety = | operator = Sri Lanka Railways | operatorclass = W1 | powerclass = | numinclass = 45 | fleetnumbers = | officialname = | nicknames = | axleloadclass = | locale = Sri Lanka | deliverydate = 1969 | firstrundate = | lastrundate = | retiredate = 1990? | withdrawndate = | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = | notes = 10 locomotives from W1 class were later fitted with new engines and renumbered as W3 class. }} The Sri Lanka Railways Class W1 is a class of Sri Lankan diesel hydraulic locomotive that was built by Rheinstahl Henschel in 1969. A total of 45 W1s were built and imported. This is the first diesel-hydraulic locomotive which ran on Sri Lankan rail. OriginsThe history of W1 begins in 1969. 45 of W1s were imported to Sri Lanka which made W1 the most numerous class of SLR locomotives that time. At that time only Class M1 and Class M2 locomotives were in operation. Most of other services were carried out by steam locomotives. But with the introduction of W1s most of steam locomotives were taken out of service and those services were taken by W1. This locomotive has used for SLR's famous Udarata Menike train for about 25 years. Also this locomotive can be operated on any of railway lines in Sri Lanka.[2] DeclineBy 90's most of W1s were out of service all because of problems in the prime-mover and some due to serious accident damages. These condemned locomotives were scrapped.[2] In ServiceWith declination of W1s 2 locomotives (650 & 657) were fitted with new Paxman VEGA SE/RP 160[1] prime movers of power 1250 HP. By 2011 only 2 of them were in running condition. Those were used in light duties. By 2012 none of W1s were in operation Class W3{{Infobox locomotive| name = Sri Lanka Railways Class W3 | powertype =Diesel | image = CLASS M3 SRI LANKAN RAILWAYS LOCO HAULED TRAIN AT KANDY RAILWAY STION SRI LANKA JAN 2013 (8509183211).jpg | alt = | caption = W3 No. 673 | builder = | ordernumber = | serialnumber = | buildmodel = DH3 1200 | builddate = | totalproduction = | rebuilder = Sri Lanka Railways, Adtranz | rebuilddate = 1997 | numberrebuilt = 10 | aarwheels = B-B | uicclass = | gauge = {{track gauge|1676mm|lk=on}} | trucks = | bogies = | wheeldiameter = | trailingdiameter = | minimumcurve = | wheelbase = | length = | width = | height = | axleload = | weightondrivers = | locoweight = | fueltype = | fuelcap = | lubecap = | coolantcap = | watercap = | sandcap = | powersupply = | consumption = | watercons = | primemover = Catepillar 3512 DI-TA [2] | rpmrange = | enginetype = | aspiration = | displacement = | alternator = | generator = | tractionmotors = | headendpower = | cylindercount = | cylindersize = | transmission = Voith L 520 R U2 | multipleworking = Yes | maxspeed = | poweroutput = {{convert|1200|HP|abbr=on}} | tractiveeffort = | factorofadhesion = | trainheating = | locobrakes = Air, Hydro-Dynamic | locobrakeforce = | trainbrakes = Air, Vacuum | safety = | operator = | operatorclass = | powerclass = | numinclass = | fleetnumbers = | officialname = | nicknames = | axleloadclass = | locale = | deliverydate = | firstrundate = | lastrundate = | retiredate = | withdrawndate = | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = Active | notes = No. 631, 636, 638, 647, 659, 665, 666, 667, 669 and 673 W1 locomotives were reclassified as W3. }} In 1997, 10 Class W1 locomotives were extensively refurbished. SLR and Adtranz involved in this. During these refurbishment the locomotives were fitted with new power plants, power transmission systems and electronic engine control systems. As well as a full new repaint of Blue and Silver was undertaken. After the extensive refurbishment, the locomotives were reclassified as the W3-class. See also{{Portal|Railways in Sri Lanka}}
References1. ^1 2 3 {{cite web|url=http://slrailinfo.wordpress.com/locomotives/class-w/class-w1/|work=Sri Lanka Railways Info Page|accessdate=18 November 2013| title=Class W1}} 2. ^1 2 3 {{cite web|url=http://locolanka.blogspot.com/2011/03/w1.html| title=෴W1 දුම්රිය එන්ජිම - ශ්රී ලංකාවට ගෙනා මුල්ම ඩීසල් හයිඩ්රොලික් වර්ගයේ දුම්රිය එන්ජිම෴| work=Loco Lanka|accessdate=18 November 2013}} 3. ^{{cite web|url=http://www.srilankanlocos.com/data/data.html |accessdate=July 9, 2011 |deadurl=yes |archiveurl=https://web.archive.org/web/20131029195606/http://www.srilankanlocos.com/data/data.html |archivedate=October 29, 2013 }} External links
3 : Diesel locomotives of Sri Lanka|5 ft 6 in gauge locomotives|Railway locomotives introduced in 1969 |
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