Data from DeGolyer, Volume 62, pp. 72. Works numbers were 52661, 52686, 52722 in December 1919.
A number of short lines bought Baldwin Ten-wheelers in this size over the years. Driver diameters clustered at two sizes--50" (1,270 mm) for freight or logging, 56" (1,422 mm) if the engine operated as all-purpose, mixed-train motive power. Locobase still hasn't pinned down just where this Midland Railway was in the US, but can say that it used 40 lb/yard (20 kg/metre) rail and that the locomotives burned oil.
Georgia Car & Locomotive bought all three engines from the MR within a few years of their delivery to the Midland. 101 went to the Wilmington, Brunswick & Southern in North Carolina. 102-103 were sold to Kirby Lumber of Silsbee, Tex as their 93 and 92, respectively.
(For more on the WB&S, see North Carolina Rails' account at [].)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 101 |
| Locobase ID | 14678 |
| Railroad | Midland Railway |
| Country | USA |
| Whyte | 4-6-0 |
| Number in Class | 3 |
| Road Numbers | 101-103 |
| Gauge | Std |
| Number Built | 3 |
| Builder | Baldwin |
| Year | 1919 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.83 / 3.91 |
| Engine Wheelbase (ft / m) | 22.98 / 7 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.56 |
| Overall Wheelbase (engine & tender) (ft / m) | 48.52 / 14.79 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 73,000 / 33,112 |
| Engine Weight (lbs / kg) | 98,000 / 44,452 |
| Tender Loaded Weight (lbs / kg) | 80,000 / 36,287 |
| Total Engine and Tender Weight (lbs / kg) | 178,000 / 80,739 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1700 / 6435 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 16,786 / 7614.01 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.35 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 178 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.23 / 3.73 |
| Firebox Area (sq ft / m2) | 90 / 8.36 |
| Grate Area (sq ft / m2) | 15.50 / 1.44 |
| Evaporative Heating Surface (sq ft / m2) | 1222 / 113.57 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1222 / 113.57 |
| Evaporative Heating Surface/Cylinder Volume | 218.60 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2790 |
| Same as above plus superheater percentage | 2790 |
| Same as above but substitute firebox area for grate area | 16,200 |
| Power L1 | 5025 |
| Power MT | 455.27 |