Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 30, p. 183. See also "The Most Wonderful Marble Deposits in the World," The World's Work, Volume 14, No. 6 (June 1907), pp. 9046 (part of a "Southern Number" profiling all parts of the South). Works number was 29910 in January 1907.
The quarries exploited by this large company had their center in Tate, Pickens County some 61 miles north of Atlanta. When GM ordered this Mogul, they laid out the difficult terrain over which it would have to operate: "Eng[ine] to handle easily 180 gross tons on 14 degree curve and 4 1/2% grade."
The World's Work article described the railway operations of this mammoth enterprise: "Many miles of standard gauge track connect the different quarries of the Georgia Marble Company with each other and with the main line of the Louisville & Nashville railroad system. All through the busy day, locomotives, from small switch engines to big 'battleships,' draw the many heavily loaded cars and start these shipments of Georgia marble on to their distant destinations. Some idea of the power of these locomotives may be gained from the fact that they have to move cars loaded with blocks of stone that run as high as twenty-seven tons to the block. Only the most massive of modern machinery makes possible the handling of these huge blocks of marble. In fact, everything on and about this great plant is on such a colossal scale that the casual spectator not only appreciates his own littleness but soon loses all sense of proportions.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 4 |
Locobase ID | 13082 |
Railroad | Georgia Marble |
Country | USA |
Whyte | 2-6-0 |
Number in Class | 1 |
Road Numbers | 4 |
Gauge | Std |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1907 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 11.17 / 3.40 |
Engine Wheelbase (ft / m) | 19.33 / 5.89 |
Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
Overall Wheelbase (engine & tender) (ft / m) | 48.33 / 14.73 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 130,000 / 58,967 |
Engine Weight (lbs / kg) | 145,000 / 65,771 |
Tender Loaded Weight (lbs / kg) | 60,000 / 27,216 |
Total Engine and Tender Weight (lbs / kg) | 205,000 / 92,987 |
Tender Water Capacity (gals / ML) | 3000 / 11.36 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 72 / 36 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 51 / 1295 |
Boiler Pressure (psi / kPa) | 190 / 1310 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 26" / 508x660 |
Tractive Effort (lbs / kg) | 32,933 / 14938.18 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.95 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 290 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.98 / 3.35 |
Firebox Area (sq ft / m2) | 170 / 15.80 |
Grate Area (sq ft / m2) | 24.70 / 2.30 |
Evaporative Heating Surface (sq ft / m2) | 1824 / 169.52 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1824 / 169.52 |
Evaporative Heating Surface/Cylinder Volume | 193.02 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4693 |
Same as above plus superheater percentage | 4693 |
Same as above but substitute firebox area for grate area | 32,300 |
Power L1 | 4570 |
Power MT | 232.50 |