Manila Railroad 4-4-2 Locomotives in Philippines


Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 10708)

Data from "New Locomotives, Manila Railway", The Locomotive Magazine, Vol XV (15 May 1909), pp. 95.

During their brief heyday as the premier passenger locomotives, Atlantics turned up everywhere.

Principal Dimensions by Steve Llanso of Middle Run Media
Class101
Locobase ID10708
RailroadManila Railroad
CountryPhilippines
Whyte4-4-2
Number in Class
Road Numbers
Gauge3'6"
Number Built
BuilderNorth British
Year1909
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12 / 3.66
Engine Wheelbase (ft / m)21.17 / 6.45
Ratio of driving wheelbase to overall engine wheelbase 0.57
Overall Wheelbase (engine & tender) (ft / m)43.54 / 13.27
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)47,712 / 21,642
Engine Weight (lbs / kg)91,392 / 41,455
Tender Loaded Weight (lbs / kg)71,680 / 32,514
Total Engine and Tender Weight (lbs / kg)163,072 / 73,969
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)40 / 20
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60 / 1524
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)15,667 / 7106.44
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.05
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)107 / 9.94
Grate Area (sq ft / m2)16.50 / 1.53
Evaporative Heating Surface (sq ft / m2)1080 / 100.37
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1080 / 100.37
Evaporative Heating Surface/Cylinder Volume193.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2970
Same as above plus superheater percentage2970
Same as above but substitute firebox area for grate area19,260
Power L15205
Power MT481.01

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