Minnesota & Northwestern 2-4-4 Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class G/Motor (Locobase 16225)

Data from CGW 7 1902 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his extensive Rail Data Exchange.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassG/Motor
Locobase ID16,225
RailroadMinnesota & Northwestern (CGW)
CountryUSA
Whyte2-4-4T
Number in Class2
Road Numbers12, 37/1-2
GaugeStd
Number Built
BuilderCooke
Year1887
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)6 / 1.83
Engine Wheelbase (ft / m)24.42 / 7.44
Ratio of driving wheelbase to overall engine wheebase 0.25
Overall Wheelbase (engine & tender) (ft / m)24.42 / 7.44
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)45,000 / 20,412
Engine Weight (lbs / kg)75,000 / 34,019
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)75,000
Tender Water Capacity (gals / ML)1200 / 4.55
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 19
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)145 / 10
High Pressure Cylinders (dia x stroke) (in / mm)12" x 20" / 305x508
Tractive Effort (lbs / kg)7395 / 3354.32
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.09
Heating Ability
Firebox Area (sq ft / m2)58 / 5.39
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)581 / 53.98
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)581 / 53.98
Evaporative Heating Surface/Cylinder Volume221.93
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 area8410
Power L13859
Power MT378.12

All material Copyright © SteamLocomotive.com
Wes Barris