2405:205:C920:90A7:0:0:31F:D8A1 at 11:54, 9 June 2021

2021-06-09T11:54:03Z

New page

{{Use Indian English|date=May 2019}}
{{Use Indian English|date=May 2019}}
{{More footnotes|date=June 2019}}
{{Infobox locomotive
|name=WDP-1
|image= File:WDP1M twin locomotives bringing Seshadri Express.jpg
|alt=
|caption=BZA based WDP-1 hauling Shesadri express arrived Samalkot Jn.
|powertype=Diesel
|builder=[[Banaras Locomotive Works|BLW]]
|ordernumber=
|serialnumber=
|buildmodel=[[ALCO DL560C|DL560C]]
|builddate=1995-99
|totalproduction='''WDP-1:''' 69
|rebuilder=
|rebuilddate=
|numberrebuilt=
|aarwheels=
|uicclass=[[Bo-Bo]]
|gauge={{RailGauge|1676mm|lk=on}}
|trucks=
|bogies=Bo-Bo fabricated bogies loosely based on the Flexicoil models
|wheeldiameter={{convert|1092|mm|ftin|0|abbr=on}}
|trailingdiameter=
|minimumcurve=
|wheelbase={{convert|12.834|m|ftin|abbr=on|frac=8}}
|length={{convert|14.810|m|ftin|abbr=on|frac=8}}
|width={{convert|2.95|m|ftin|abbr=on|frac=8}}
|height={{convert|4.077|m|ftin|abbr=on|frac=8}}
|axleload={{convert|20000|kg|abbr=on}}
|weightondrivers=
|locoweight={{convert|80100|kg|abbr=on}}
|fueltype=[[Diesel fuel|Diesel]]
|fuelcap={{convert|5000|L|abbr=on}}
|lubecap=
|coolantcap=|watercap=|sandcap=|consumption=|watercons=|primemover=[[ALCO 251|ALCO 251-C]]|rpmrange=390rpm-400rpm idling, 1000rpm at 8th notch|enginetype=[[V12 engine|V12]] [[Diesel engine|diesel]]|aspiration=[[Turbo-supercharger|Turbo-supercharged]]|displacement=|alternator=|generator=|tractionmotors=BHEL 5002AZ CGL 7362A|cylindercount=12|cylindersize={{convert|228|x|266|mm|in|2|abbr=on}}<br> [[Bore (engine)|bore]] x [[Stroke (engine)|stroke]]|transmission=[[Diesel-electric transmission]]|multipleworking=2|trainheating=|locobrakes=|trainbrakes=[[Railway air brake|Air]] and [[Vacuum brake#Dual brakes|Dual]]|safety=|maxspeed={{convert|140|km/h|0|abbr=on}}|poweroutput=Max:{{convert|2300|HP|abbr=on}}<br>Site rated:{{convert|2000|HP|abbr=on}}|tractiveeffort={{convert|20|t|0|abbr=on}}|locobrakeforce=|operator=[[Indian Railways]]|operatorclass=|powerclass=|numinclass=|fleetnumbers= '''15001-15069'''|officialname=|nicknames=|axleloadclass=|locale=All over Indian Railways|deliverydate=|firstrundate=|lastrundate=|retiredate=|withdrawndate=|restoredate=|scrapdate=|currentowner=|disposition=active}}

The '''Indian locomotive class WDP-1''' is a class of [[diesel-electric locomotive]] that was developed in 1995 by [[Banaras Locomotive Works]] (BLW) for [[Indian Railways]]. The model name stands for [[5 ft 6 in gauge railway|broad gauge (W)]], Diesel (D), Passenger traffic (P) engine, 1st generation (1). They entered service in 1995. A total of 69 WDP-1 units were built at [[Banaras Locomotive Works]] (BLW), Varanasi between 1995 and 1999.

The WDP-1 served both passenger and freight trains for over 25 years. Despite the introduction of more modern types of locomotives like [[Indian locomotive class WDG-4|WDG-4]] and electrification, a significant number are still in use, both in mainline and departmental duties. As of January 2020, 60 locomotives still retain "operational status" on the mainline.

== History ==

The WDP-1 is a lower powered version of the [[Indian locomotive class WDM-2|WDM-2]]. These locos have a 2300 hp powerpack, . The engine is a converted version of the Alco 251C model with a 12-cylinder engine and low overall weight with a max. speed of 140 km/h, Bo-Bo fabricated bogies loosely based on the Flexicoil models. They are still in service and are homed either at TKD & BZA to haul short commuter trains and shunting around the area. They look just like all other ALCOs and are easily identified by the laterally “sculpted” and baldie grille-less short hood.

'''WDP1M''' is a rebuilt version with better powerpack and better cooling via a modified radiator. The biggest change is in the suspension. Rubber springs have been provided instead of coil springs, along with other changes to the suspension and axle components

== Locomotive sheds ==
{| class="wikitable"
|-
! Zone !! Name !! Shed Code !! Quantity
|-
| [[Northern Railway zone|Northern Railway]] || [[Tughlakabad railway station|Tughlakabad]] || TKD || 44
|-
| [[South Central Railway zone|South Central Railway]] || [[Vijayawada Junction railway station|Vijayawada]] || BZA || 16
|-
| colspan="3" |'''Total Locomotives Active as of 01-06-2021'''<ref>{{Cite web|title=Railway Website Mechanical Department|url=http://www.indianrailways.gov.in/railwayboard/view_section.jsp?lang=0&id=0,1,304,366,541,710,717|access-date=16 May 2020}}</ref>|| 60
|}


== See also ==
* [[Indian locomotive class WDM-2]]
* [[List of diesel locomotives of India]]
* [[History of rail transport in India]]
* [[Rail transport in India]]

== References ==

<references />

* https://www.rdso.indianrailways.gov.in/works/uploads/File/WDP1M%20Final%20speed%20certificate.pdf

{{Broad gauge locomotives of India|state=open}}
{{DEFAULTSORT:WDP-1}}

[[Category:Diesel-electric locomotives of India|P-1]]
[[Category:Banaras Locomotive Works locomotives]]
[[Category:Bo-Bo locomotives]]
[[Category:5 ft 6 in gauge locomotives]]
[[Category:Railway locomotives introduced in 1995]]

Indian locomotive class WDP-1 - Revision history

2405:205:C920:90A7:0:0:31F:D8A1 at 11:54, 9 June 2021