Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 21, p. 216. See also Donald R. Hensley, Jr., "The South Georgia Railway", archived at TapLines [] . Works number was 15987 in June 1898.
The SG originally ran from Heartpine, Ga to Quitman, then to Greenville, Fla, 50 miles away from its origin. It was later known as the South Georgia & West Coast, although its incorporation papers were never formally changed. By 1904, the West Coast leg had been extended to Perry, Fla, 76 miles away.
The 7 was lettered for the South Georgia. In 1906, the 7 was sold to the Kirby Planing Mill. It later operated on the Lakeland Railroad.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 7 |
Locobase ID | 12284 |
Railroad | South Georgia |
Country | USA |
Whyte | 4-6-0 |
Number in Class | 1 |
Road Numbers | 7 |
Gauge | Std |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1898 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 11.75 / 3.58 |
Engine Wheelbase (ft / m) | 21.90 / 6.68 |
Ratio of driving wheelbase to overall engine wheelbase | 0.54 |
Overall Wheelbase (engine & tender) (ft / m) | 45.25 / 13.79 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 50,000 / 22,680 |
Engine Weight (lbs / kg) | 70,000 / 31,752 |
Tender Loaded Weight (lbs / kg) | 60,000 / 27,216 |
Total Engine and Tender Weight (lbs / kg) | 130,000 / 58,968 |
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) | 28 / 14 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 50 / 1270 |
Boiler Pressure (psi / kPa) | 160 / 1140 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 22" / 356x559 |
Tractive Effort (lbs / kg) | 11,729 / 5320.19 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.26 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 131 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 12.23 / 3.73 |
Firebox Area (sq ft / m2) | 79.50 / 7.39 |
Grate Area (sq ft / m2) | 12.20 / 1.13 |
Evaporative Heating Surface (sq ft / m2) | 912 / 84.76 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 912 / 84.76 |
Evaporative Heating Surface/Cylinder Volume | 232.65 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1952 |
Same as above plus superheater percentage | 1952 |
Same as above but substitute firebox area for grate area | 12,720 |
Power L1 | 4454 |
Power MT | 589.16 |