Meridian Lumber Company 2-8-0 "Consolidation" Locomotives of 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.

Specifications 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)14.25
Engine Wheelbase (ft)22.08
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender) (ft)52.23
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)142,000
Engine Weight (lbs)159,000
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)259,000
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)2200
Minimum weight of rail (calculated) (lb/yd)59
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)200
High Pressure Cylinders (dia x stroke) (in)20" x 26"
Tractive Effort (lbs)35,360
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.02
Heating Ability
Firebox Area (sq ft)166
Grate Area (sq ft)31.40
Evaporative Heating Surface (sq ft)1667
Superheating Surface (sq ft)282
Combined Heating Surface (sq ft)1949
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