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What’s the ‘tractive effort’ of a locomotive?

20-06-2019

The ‘tractive effort’ is a measure of how large a load the loco can pull and set in motion from a standstill — the maximum force it can exert at the drawbar or coupling. While the raw horsepower rating of the loco is important, it is not the whole story. The loco's weight also comes into play, as a heavier loco can pull a larger load without its wheels slipping. Once the wheels begin slipping, the force that can be exerted by the loco drops dramatically. (Slipping occurs more with the front wheels because the front of the loco tends to lift slightly due to the reaction torque exerted by the rails on the loco.) Modern locos tend to have electronic slip control to control the power

Where can I find pictures of various kinds of locomotives?

June 20, 2019

Two other good places to start are the loco picture pages at the Indian Train Gallery and RailInIndia. See S Shankar's IR pages for dozens of links and pages on different kinds of locomotives with pictures. ये भी पढ़े - सर्वाइकल पेन दूर करने के लिए 5 कारगर आसन Source -

Does IR have push-pull operations?

June 20, 2019

Push-pull operations are seen in a few places. The Bangalore-Mysore Passenger has a loco at one end and driving trailer cab at the other end for true push-pull operation. The trailer cab is sometimes seen in the middle of a rake instead of the very end (Bangalore-Arsikere-Nanjangud Passenger) The 6057/6058 Sapthagiri Express between Chennai

How many locomotives does IR have in its fleet?

June 20, 2019

As of 1998, IR operated a fleet of about 4,400 diesel locos, and about 2,550 electric locos. In mid-1997, it still counted 85 steam locos in its fleet, although most of those are not in service any more (see the section on the last of steam. In 2005, IR had about 4,800 diesels, 3,065 electrics, and 44 steam locos. ये भी पढ़े -

Serial numbers: How are/were locomotives numbered in India?

June 20, 2019

Prior to 1940 or so, each railway company had its own system of numbering different classes of locomotives. Beginning in the early 1940s, the state began taking over several of the railway companies, and newer locomotives acquired thereafter were allotted numbers based on the ‘IRS’ (and later ‘IGR’) classes; but numbers were duplicated

Were/are battery-powered electric locos used in India?

June 20, 2019

Yes. Western Railway inherited from the BB&CI Railway two broad-gauge battery-powered shunters that were used in a yard that was not electrified (and where the use of steam or diesel locos was thought to be too noisy). There is a picture of one of these in Jal Daboo's book. These were locomotives built in England in 1927, and for their time

What kinds of bogies (trucks) are used by IR’s locomotives?

June 20, 2019

For mainline BG locomotives, there were, until the 1980s, two main alternatives. The venerable WDM-2 which existed (exists) in vast numbers, along with the WDS-6, WAM-4, WAG-5, and some of the WCAM-1/2 locos used an Alco design asymmetric trimount (Co-Co) cast bogie design. Most other mainline BG locos used some variant of the GM-EMD 'Flexicoil'

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What’s the ‘tractive effort’ of a locomotive?

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