North Western Railways 0-4-2 Locomotives in India


Class Details by Steve Llanso of Sweat House Media

Class KS (Locobase 1090)

Wee bits of data from "Indian Locomotives", Locomotive Magazine, Vol VI (July 1901), p. 119.

Atypical wheel arrangement that reflects British practice. H H Spalding's note accompanying the photograph in the LM story notes that it was used for mixed and goods traffic.


Class unknown (Locobase 3181)

Data from "Thirty-Years' Development, Metre-Gage Locomotives, Indian State Railways", Railroad Age Gazette, Volume XLVII [47], No 3 (16 July 1909), p. 110; and Ahrons (1927).

Tiny tank engine delivered in batches by Dubs & Company and Nasmyth & Wilson. RAG's photograph showed the small engine set pilot-to-pilot with a metre-gauge 4-6-0 like that described in Locobase 20544.

Still in service, the older locomotive pulled passenger trains on the Rohikhund & Kumaon branch.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassKSunknown
Locobase ID1090 3181
RailroadNorth Western RailwaysNorth Western Railways
CountryIndiaIndia
Whyte0-4-20-4-2T
Number in Class
Road Numbers
Gauge5'6"Metre
Number Built
Builderseveral
Year18601873
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)5 / 1.52
Engine Wheelbase (ft / m)11 / 3.35
Ratio of driving wheelbase to overall engine wheelbase 0.45
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)22,400 / 10,160
Engine Weight (lbs / kg)30,576 / 13,869
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2400 / 9.09360 / 1.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)19 / 9.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 167630 / 762
Boiler Pressure (psi / kPa)140 / 970140 / 970
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x6109" x 14" / 229x356
Tractive Effort (lbs / kg)12,506 / 5672.634498 / 2040.26
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.98
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)25.40 / 2.36
Grate Area (sq ft / m2) 5.80 / 0.54
Evaporative Heating Surface (sq ft / m2)963 / 89.50273 / 25.36
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)963 / 89.50273 / 25.36
Evaporative Heating Surface/Cylinder Volume152.74264.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation812
Same as above plus superheater percentage812
Same as above but substitute firebox area for grate area3556
Power L12716
Power MT534.62

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