North Western Railways 2-4-0 Locomotives in India


Class Details by Steve Llanso of Sweat House Media

Class P (Locobase 1091)

Data from "Indian Locomotives", Locomotive Magazine, Vol VI (July 1901), p. 119.

Higher-drivered passenger engine for Indian service.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassP
Locobase ID1091
RailroadNorth Western Railways
CountryIndia
Whyte2-4-0
Number in Class
Road Numbers
Gauge5'6"
Number Built
Builder
Year1860
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2400 / 9.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)72 / 1829
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)14,688 / 6662.37
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)1205 / 111.99
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1205 / 111.99
Evaporative Heating Surface/Cylinder Volume170.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area
Power L1
Power MT

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