Portsmouth Lumber Manufacturing Company 0-4-2 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Sue Barron (Locobase 12141)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 19, p. 36 and p. 168. Works number was 14222 in February 1895.

This tiny wood-burning logging tank was called by 3 names (officially) during its career. When it went from the PLMC to C R Johnson Lumber, it took the owner's name. Later, its sale to Richmond Cedar Works resulted in a partial recovery of its earlier name when it was renamed Sue.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassSue Barron
Locobase ID12141
RailroadPortsmouth Lumber Manufacturing Company
Number in Class1
Road Numbers2
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.67 / 1.12
Engine Wheelbase (ft / m) 9.58 / 2.92
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m) 9.58 / 2.92
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)19,000 / 8618
Engine Weight (lbs / kg)23,000 / 10,433
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)23,000
Tender Water Capacity (gals / ML)250 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)16 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28 / 711
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)8" x 12" / 203x305
Tractive Effort (lbs / kg)3497 / 1586.21
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.43
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.17 / 1.88
Firebox Area (sq ft / m2)21.09 / 1.96
Grate Area (sq ft / m2) 5.60 / 0.52
Evaporative Heating Surface (sq ft / m2)155 / 14.41
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)155 / 14.41
Evaporative Heating Surface/Cylinder Volume221.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation840
Same as above plus superheater percentage840
Same as above but substitute firebox area for grate area3164
Power L12605
Power MT604.53

All material Copyright © SteamLocomotive.com
Wes Barris