Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 13, p. 122. Works number was 8145 in September 1886. See [] for a history of this railroad
The AP & L was chartered in 1884 It would be the only railroad in Georgia to use only local financing, primarily from wealthy investors in Americus itself. Its original construction as a narrow-gauge line among the three named towns, the latter two county seats without rail service of any kind, provided energy of its own. The instant Eight-wheeler in this entry may have been modest in scale, but it supported a new level of accessibility.
See Locobase 11575 for the SAM's later history.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | W A Gregory |
| Locobase ID | 11856 |
| Railroad | Americus, Preston & Lumpkin (SAM) |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1886 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.17 / 2.19 |
| Engine Wheelbase (ft / m) | 18.25 / 5.56 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 26,000 / 11,793 |
| Engine Weight (lbs / kg) | 39,000 / 17,690 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1200 / 4.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 22 / 11 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43 / 1092 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 16" / 305x406 |
| Tractive Effort (lbs / kg) | 5921 / 2685.72 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 113 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.81 / 2.69 |
| Firebox Area (sq ft / m2) | 52 / 4.83 |
| Grate Area (sq ft / m2) | 8.10 / 0.75 |
| Evaporative Heating Surface (sq ft / m2) | 439 / 40.80 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 439 / 40.80 |
| Evaporative Heating Surface/Cylinder Volume | 210.05 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1053 |
| Same as above plus superheater percentage | 1053 |
| Same as above but substitute firebox area for grate area | 6760 |
| Power L1 | 3116 |
| Power MT | 528.43 |