Travel Tip
 Conf TL
 RF Club
 FM Alert
 FM Approval
Forum Super Search
Freq Contact:
Posting Date From:
Posting Date To:
Blog Category:
Train Type:
ONLY with Pic/Vid:
Sort by: Date:     Word Count:     Popularity:     
Public:    Pvt: Monitor:    RailFan Club:    

Full Site Search
  Full Site Search  
Sat Jan 19 10:12:18 IST
Post BlogPost Trn TipPost Stn TipAdvanced Search

Blog Entry# 4157323
Posted: Dec 26 2018 (17:27)

5 Responses
Last Response: Jan 04 (19:13)
General Travel
Dec 26 2018 (17:27)  

2⃣2⃣2⃣2⃣1⃣🔥CR RAJDHANI🔥2⃣2⃣2⃣2⃣2⃣^~   2388 blog posts   543 correct pred (65% accurate)
Entry# 4157323            Tags   Past Edits
History of the diesel loco WDM-3A
The first one was delivered on August 22, 1994, It was then WDM-2C.[3] First 57 units produced till March 1996 (Indian Railway road number 14001-14057) had rounded front hood profile similar to contemporary newer classes of locos built by DLW (WDG3A and WDP1). After that there was a gap of long four years in the WDM3A production line in DLW. These new locomotives had their control stand shifted to the left side of the cabin. Meanwhile, Diesel Loco Modernisation Works (erstwhile Diesel Modification Works which again was known as Diesel Component Works) in Patiala started rebuilding the existing WDM2 locomotives, which had reached midlife, with upgraded powerpacks. DLMW Patiala re-calibrates the powerpack and upgrades the output
power rating to 3100HP.DLW again started building WDM3A from the year 2000 and continued till the end of 2002 with locomotive road numbers in the range 14058-14143. All the locomotives rebuilt by DLMW and later batch from DLW had regular WDM2 type square short hood profile and control stand position. DLW again built WDM3A variant locomotives, during 2005-2006, in the road number range 14144-14167 which were classified as WDM3B due to their difference in bogie design from classic ALCo asymmetrical trimount to HAHS design which was employed in WDG2 and later WDM3D classes too. Most of the WDM3B were later converted to WDM3D. In 2011, DLMW rebuilt locomotive number 16502 as WDM3A and equipped it with an Elctronic Fuel Injection (EFI) system jointly developed by Engine Research Laboratory of IIT Kanpur, Engine Development Directorate of RDSO, and DLMW Patiala.DLMW continues to rebuild WDM2 as WDM3A and recently they have started rebuilding the DLW built WDM3A too when they reach their midlife. Recent rebuilt locomotives are rated at 3300 HP, and from 2009 onward they are equipped with Daulat Ram DBR, and since 2014 they are also equipped with an Auxiliary Power Unit (APU) in the short hood. Some rebuilt locomotives have Co-Co-fabricated ATHS (Advanced Trimount High Speed) bogies instead of ALCo cast-iron type.All the rebuilt WDM3A bear the "-R" suffix to their road numbers.
In 2012 Bangladesh Railway ordered 26 WDM3A from DLW. They are classified as Class 6500 there. These units, however, lack the dynamic braking which happens to be an essential component in their Indian counterparts.

2 Public Posts - Wed Dec 26, 2018

3 Public Posts - Fri Jan 04, 2019

ARP (Advanced Reservation Period) Calculator

Reservations Open Today @ 8am for:
Trains with ARP 10 Dep on: Tue Jan 29
Trains with ARP 15 Dep on: Sun Feb 3
Trains with ARP 30 Dep on: Mon Feb 18
Trains with ARP 120 Dep on: Sun May 19


Rail News

New Trains

Site Announcements

  • Entry# 4200970
    Yesterday (10:12PM)

    @all: This is to formally announce the END of the RailCal app. Due to the information blockade, the app has lost its value, and has been rendered completely useless. We are unable to support RailCal anymore. Sorry to disappoint our users. . RailCal has already been taken off the Google PlayStore. So once...
  • Entry# 4188821
    Jan 06 (02:19AM)

    @all: At this time, the PNR Forum is functioning again, albeit at a greatly reduced volume and efficiency. Refreshing PNRs is a very cumbersome affair. We may expect this to end as well, eventually, as the Govt. tightens these controls further. At IRI, we CANNOT waste any more time on this fruitless...
  • Entry# 4187635
    Jan 05 (01:47AM)

    The following changes are being introduced to keep the PNR Forum functioning. . 1. A "bookmarklet" called "PNR Refresh" has been created. Just Copy/Paste a small piece of text into your browser bookmarks. The bookmarklet will be available by morning. . 2. When you click on Post/Update/Refresh PNR, you will be taken to the Official...
  • Entry# 4180488
    Jan 02 (11:57AM)

    @all: The PNR Forum as we know it is OVER. The official website has unilaterally decided to thoroughly block and shut down all access to PNR info. We had put in MANY, many years of PAINSTAKING effort to develop the PNR Prediction infrastructure, and our Sr. Legendary Members have helped countless people...
  • Entry# 4135478
    Dec 22 (12:58PM)

    Starting Monday, we shall be starting the slow Test rollout of our new app - called RailFan. . What is RailFan? It is expected that RailFan will be the future of the IRI site for mobile phones. A full dedicated offline-capable messaging/blogging app, encompassing all the features of the IRI site. The RailFan app...
  • Entry# 4073462
    Dec 06 2018 (12:50PM)

    There are some minor changes to the PNR Forum: 1. The main PNR feed will only show UN-predicted (by you) PNRs which are coming in. However, if there are replies, the PNR will show and will bubble to the top. Once you predict the PNR, it will go away from the main...
Scroll to Top
Scroll to Bottom
Go to Mobile site
Important Note: This website NEVER solicits for Money or Donations. Please beware of anyone requesting/demanding money on behalf of IRI. Thanks.
Disclaimer: This website has NO affiliation with the Government-run site of Indian Railways. This site does NOT claim 100% accuracy of fast-changing Rail Information. YOU are responsible for independently confirming the validity of information through other sources.
India Rail Info Privacy Policy