Data from DeGolyer, Volume 45, p.152. Works number was 33517 in June 1909.
Although the MD&S did not actually merge with the Seaboard Air Line until 1958, it was such a small line that it bought very few locomotives new. Still, it acquired this little Eight-wheeler from the builder itself.
The design put on very few airs. No superheater, balanced slide valves, inside link motion, narrow firebox. Then again, the MD&S promised only 1% grades and 6-degree curves, so this basic American would serve.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 100 |
| Locobase ID | 12573 |
| Railroad | Macon, Dublin & Savannah |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | 100/98 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1909 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.08 / 2.77 |
| Engine Wheelbase (ft / m) | 24.29 / 7.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 73,000 / 33,112 |
| Engine Weight (lbs / kg) | 116,000 / 52,617 |
| Tender Loaded Weight (lbs / kg) | 70,000 / 31,752 |
| Total Engine and Tender Weight (lbs / kg) | 186,000 / 84,369 |
| Tender Water Capacity (gals / ML) | 3500 / 13.26 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 61 / 30.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 62 / 1575 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 19,189 / 8703.99 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.80 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 246 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.02 / 6.41 |
| Firebox Area (sq ft / m2) | 152.70 / 14.19 |
| Grate Area (sq ft / m2) | 18.60 / 1.73 |
| Evaporative Heating Surface (sq ft / m2) | 1690 / 157.06 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1690 / 157.06 |
| Evaporative Heating Surface/Cylinder Volume | 239.04 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3348 |
| Same as above plus superheater percentage | 3348 |
| Same as above but substitute firebox area for grate area | 27,486 |
| Power L1 | 6455 |
| Power MT | 389.89 |