Meridian Lumber Company 2-8-0 "Consolidation" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 206 (Locobase 15210)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 71, pp. 153+. Works number was 57537 in November 1923.

This oil-burning logging Consolidation constituted a step up in power for the Meridian Lumber Company. Although superheated (and therefore used 10" (254 mm) piston valves for steam admission), the engine was not heavily endowed with modern appurtenances. It was delivered to Meridian, Louisiana.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID15,210
RailroadMeridian Lumber Company
Number in Class1
Road Numbers206
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.25 / 4.34
Engine Wheelbase (ft / m)22.08 / 6.73
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender) (ft / m)52.23 / 15.92
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)142,000 / 64,410
Engine Weight (lbs / kg)159,000 / 72,121
Tender Loaded Weight (lbs / kg)100,000 / 45,359
Total Engine and Tender Weight (lbs / kg)259,000 / 117,480
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)2200 / 8.30
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)20" x 26" / 508x660
Tractive Effort (lbs / kg)35,360 / 16039.05
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.02
Heating Ability
Firebox Area (sq ft / m2)166 / 15.42
Grate Area (sq ft / m2)31.40 / 2.92
Evaporative Heating Surface (sq ft / m2)1667 / 154.87
Superheating Surface (sq ft / m2)282 / 26.20
Combined Heating Surface (sq ft / m2)1949 / 181.07
Evaporative Heating Surface/Cylinder Volume176.33
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6280
Same as above plus superheater percentage7159
Same as above but substitute firebox area for grate area37,848
Power L18876
Power MT551.22

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Wes Barris