Burma Railways 2-6-0 Locomotives in Burma


Class Details by Steve Llanso of Sweat House Media

Class G (Locobase 12328)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 22, p. 53. See also the note in Great Britain's Board of Trade Journal, Volume 33 (6 June 1901). Works numbers were 16566-16575 in March 1899 and 16680-16689 in April.

The BOTJ gave the following summary by Mr J S Brown, Senior Government Inspector of Railways, Burma, of the G's early performance, which was in line with the opinions held by other British railways during a sudden spurt of purchases from American builders:

" The twentieth and last of the Moghal type of engines (' G' class) was erected and placed in running during the half-vear. These American locomotives are now doing fairly well, but gave much trouble at first. They are of heavier build and produce higher bending-moments on all cross-girders of bridges and on small-span bridges than the ' F' class engines. Some of the details showed want of strength, and parts supposed to be of cast steel proved of very inferior metal and workmanship ; alterations and repairs have been required much in excess of what is necessaiy with new locomotives received from British makers."

Principal Dimensions by Steve Llanso of Middle Run Media
ClassG
Locobase ID12328
RailroadBurma Railways
CountryBurma
Whyte2-6-0
Number in Class20
Road Numbers153-172
GaugeMetre
Number Built20
BuilderBurnham, Williams & Co
Year1899
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)16.50 / 5.03
Ratio of driving wheelbase to overall engine wheelbase 0.61
Overall Wheelbase (engine & tender) (ft / m)34.50 / 10.52
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)52,000 / 23,587
Engine Weight (lbs / kg)62,000 / 28,123
Tender Loaded Weight (lbs / kg)30,000 / 13,608
Total Engine and Tender Weight (lbs / kg)92,000 / 41,731
Tender Water Capacity (gals / ML)1518 / 5.75
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)29 / 14.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42.50 / 1080
Boiler Pressure (psi / kPa)150 / 1030
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x508
Tractive Effort (lbs / kg)11,760 / 5334.25
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.42
Heating Ability
Tubes (number - dia) (in / mm)153 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.50 / 2.90
Firebox Area (sq ft / m2)78 / 7.25
Grate Area (sq ft / m2)13.50 / 1.25
Evaporative Heating Surface (sq ft / m2)738 / 68.59
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)738 / 68.59
Evaporative Heating Surface/Cylinder Volume207.11
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2025
Same as above plus superheater percentage2025
Same as above but substitute firebox area for grate area11,700
Power L13363
Power MT427.74

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