Rumford Falls & Rangeley Lakes 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 12171)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 20, p. 39. Works number was 14494 in October 1895.

In 1903, the Portland & Rumford Falls dissolved its subsidiary and this tank was renumbered 53. Four years later, the Maine Central leased the P & RF and RF & RL for 999 years. Unlike the 2-6-2T shown in Locobase 12169, however, the MEC held onto the 162, converting it to a 2-6-2T and placing in its own class F.

After another nine years of service, the 162 was scrapped in September 1916.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID12171
RailroadRumford Falls & Rangeley Lakes
Number in Class1
Road Numbers3/ 54 /
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)20.50 / 6.25
Ratio of driving wheelbase to overall engine wheelbase 0.61
Overall Wheelbase (engine & tender) (ft / m)46.83 / 14.27
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)100,000 / 45,359
Engine Weight (lbs / kg)120,000 / 54,431
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)3200 / 12.12
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)56 / 28
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)59 / 1499
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)14" x 24" / 356x610
Low Pressure Cylinders (dia x stroke) (in / mm)24" x 24" / 610x610
Tractive Effort (lbs / kg)18,203 / 8256.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.49
Heating Ability
Tubes (number - dia) (in / mm)280 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)20.70 / 1.92
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3726
Same as above plus superheater percentage3726
Same as above but substitute firebox area for grate area
Power L1
Power MT

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