North Western Railways 2-8-2 Locomotives in India


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 4088)

Pittsburgh builder's data from a compilation by B Rumary supplied by Allen Stanley in March 2004. See also "Pittsburg [sic] Locomotives for the Indian State Railway", Railway Age, Volume 31 (24 May 1901), p. 561. The works numbers were 2231-2238 in May-June 1901.

Interesting Mikado tank delivered to Karachee (sic, according to the 31 May 1901 Railroad Gazette) for work on the Mushkaf-Bolan division. It was a big engine, one of the biggest tank engines of this wheel arrangement operated anywhere.

About their physical appearance and approach, RG commented: "These engines are of more than ordinary interest in that they combine to an unusual degree an assemblage of recognized British ideas, of long standing, with many of the most recent developments of the American types of locomotives." Taking advantage of the possibilities for increased adhesive weight represented by the side tanks, they were extended as far forward as possible.

Principal Dimensions by Steve Llanso of Middle Run Media
Classunknown
Locobase ID4088
RailroadNorth Western Railways
CountryIndia
Whyte2-8-2T
Number in Class8
Road Numbers189-196/675-682
Gauge5'6"
Number Built8
BuilderPittsburgh
Year1901
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)16 / 4.88
Engine Wheelbase (ft / m)34 / 10.36
Ratio of driving wheelbase to overall engine wheelbase 0.47
Overall Wheelbase (engine & tender) (ft / m)34 / 10.36
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)158,050 / 71,690
Engine Weight (lbs / kg)214,550 / 97,318
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2640 / 8.33
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 6.80 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)66 / 33
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)20" x 26" / 508x660
Tractive Effort (lbs / kg)31,200 / 14152.10
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.07
Heating Ability
Tubes (number - dia) (in / mm)267 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.03 / 4.28
Firebox Area (sq ft / m2)148 / 13.75
Grate Area (sq ft / m2)30 / 2.79
Evaporative Heating Surface (sq ft / m2)2090 / 194.17
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2090 / 194.17
Evaporative Heating Surface/Cylinder Volume221.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5400
Same as above plus superheater percentage5400
Same as above but substitute firebox area for grate area26,640
Power L14580
Power MT255.54

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