Goodman Lumber Company / Grace Logging Company / Graves Lumber Company 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 51 (Locobase 14059)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 60. See also Mary K Hamner, "Unknown 'mother's son' gets gravestone; Killed in robbery attempt in 1924, man's identity has never been learned" (January 7) and "Castor recalls past when rails came to town" (November 6), The Piney Woods Journal, archived on [] . Works number was 40940

in November 1913.

Grace Logging Company was the successor to the Gravel Lumber Company, which established a mill in Castor, a little town in the southwest corner of Bienville Parish in Louisiana and set up a tram road between Castor and Lucky. R F Chandler managed the mill, the town and the tram, known as the "Old Railroad Logging Tram". This Baldwin logging Prairie was standard equipment for many timber harvesters in the early 20th Century.

After a couple of decades of logging, according to Hamner, "The tall virgin pines disappeared as did the commissaries, logging camps, tramways, and local trains. The timber-logging boom was more or less over by 1920. Once beautiful woods were left with pitiful, naked stumps"

This typical denoument to much of American logging in the early 20th century hit Chandler as well and he left the area for the Black River. There he established a successful fishing camp in 1930 and ran it for another 2 decades.


Class 7 (Locobase 14056)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 48. Works numbers were 33508 in June 1909 and 40803 in November 1913.

One of dozens of Baldwin-built logging Prairies that worked in all parts of the United States, the 7 was of medium size with a relatively small grate for the boiler. Goodman (later Sawyer-Goodman) built a railroad near Marinette, Wisc that was still under construction when the 7 and the 14 were ordered and featured 7% grades on the "temporary work" and 4-5% on the mainline. Curves could be as tight as 28 degrees.


Class 9 (Locobase 15217)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 71, p. 246+. Works number was 55278 in January 1922.

This long-stroke, wood-burning logging Prairie was one of several produced to this particular design. Once the Graves Brothers began de-emphasizing and ultimately ending their lumber construction, they disposed of their excess equipment.

The 9 went to WB Harbeson when that company bought the newly built electric sawmill at Carabelle in 1928. It later worked for West Florida Lumber Company and A M Lewin Lumber before winding up with Walsh Construction.

Principal Dimensions by Steve Llanso of Sweat House Media
Class5179
Locobase ID14,059 14,056 15,217
RailroadGrace Logging CompanyGoodman Lumber CompanyGraves Lumber Company
CountryUSAUSAUSA
Whyte2-6-22-6-22-6-2
Number in Class111
Road Numbers5179
GaugeStdStdStd
Number Built111
BuilderBaldwinBurnham, Williams & CoBaldwin
Year191319091922
Valve GearStephensonStephensonWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.25 / 3.1210 / 3.05 9.17 / 2.80
Engine Wheelbase (ft / m)26.83 / 8.1825.25 / 7.7023.75 / 7.24
Ratio of driving wheelbase to overall engine wheebase 0.38 0.40 0.39
Overall Wheelbase (engine & tender) (ft / m)54.46 / 15.4445.83 / 13.9749.10 / 14.97
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)89,000 / 39,64478,000 / 35,38070,000 / 31,752
Engine Weight (lbs / kg)117,000 / 51,800103,000 / 45,35992,000 / 41,731
Tender Loaded Weight (lbs / kg)90,000 / 40,82360,000 / 27,21670,000 / 31,752
Total Engine and Tender Weight (lbs / kg)207,000 / 92,623163,000 / 72,575162,000 / 73,483
Tender Water Capacity (gals / ML)4000 / 17.053000 / 11.364800 / 18.18
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)8 / 5.50
Minimum weight of rail (calculated) (lb/yd / kg/m)49 / 24.5043 / 21.5039 / 19.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 111846 / 116844 / 1118
Boiler Pressure (psi / kPa)170 / 11.70180 / 12.40170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x61016" x 24" / 406x61015" x 24" / 381x610
Tractive Effort (lbs / kg)20,045 / 9092.2720,435 / 9269.1717,734 / 8044.02
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.44 3.82 3.95
Heating Ability
Firebox Area (sq ft / m2)121 / 11.2493.40 / 8.6886 / 7.99
Grate Area (sq ft / m2)18.20 / 1.6914.40 / 1.3414.10 / 1.31
Evaporative Heating Surface (sq ft / m2)1552 / 144.181348 / 125.231074 / 99.78
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1552 / 144.181348 / 125.231074 / 99.78
Evaporative Heating Surface/Cylinder Volume246.15241.36218.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation309425922397
Same as above plus superheater percentage309425922397
Same as above but substitute firebox area for grate area20,57016,81214,620
Power L1484744853820
Power MT360.20380.30360.93

All material Copyright © SteamLocomotive.com
Wes Barris