Gay Lumber Company / Gray Lumber Company 2-4-0 "Porter" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 12368)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 22, p. 176. Works number was 17197 in October 1899.

This small 6-wheeler had only a short career with Gay Lumber in North Carolina.

Class Nellie (Locobase 12388)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 22, p. 224. Works number was 17384 in January 1900.

It may seem odd to describe a 12-ton vehicle as "toylike", but this wood-burning six-wheeler's dimensions suggest the adjective (or perhaps "petite", given her name), especially when trailing her 4-wheel tender.

Nellie led a lumber-engine's life. After a few years with Gray Lumber, Nellie went to Blades Lumber Company (New Bern, NC), which sold it in July 1906 to John L Roper Lumber (Norfolk, Va), which gave it #14.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12,368 12,388
RailroadGay Lumber CompanyGray Lumber Company
Number in Class11
Road Numbers27
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)6 5.50
Engine Wheelbase (ft)11.7111.17
Ratio of driving wheelbase to overall engine wheebase 0.51 0.49
Overall Wheelbase (engine & tender) (ft)25.21
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)23,00020,000
Engine Weight (lbs)27,00024,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)1000400
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)1917
Geometry Relating to Tractive Effort
Driver Diameter (in)3634
Boiler Pressure (psi)160160
High Pressure Cylinders (dia x stroke) (in)9" x 16"9" x 14"
Tractive Effort (lbs)48964536
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.70 4.41
Heating Ability
Firebox Area (sq ft)36.7035
Grate Area (sq ft) 7.837
Evaporative Heating Surface (sq ft)256219
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)256219
Evaporative Heating Surface/Cylinder Volume217.30212.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation12531120
Same as above plus superheater percentage12531120
Same as above but substitute firebox area for grate area58725600
Power L135813465
Power MT686.50763.90

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