Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p.129. Baldwin works number was 26574 in October 1905. See Locobase 12836 for a brief description of the D & W.
Locobase 12836 describes the Consolidation stablemate that shared the same boiler and grate. The commonality of parts between the these two engines is striking. The grate and firebox have identical dimensions and the only difference in the boiler tube layout is that each was 12" shorter in this Ten-wheeler. Tenders were identical, too. Cylinder volume measured slightly less because of the smaller diameter of the cylinders and driver diameter was a bit greater.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 20 |
| Locobase ID | 12837 |
| Railroad | Danville & Western |
| Country | USA |
| Whyte | 4-6-0 |
| Number in Class | 1 |
| Road Numbers | 20 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.75 / 3.58 |
| Engine Wheelbase (ft / m) | 21.83 / 6.65 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.54 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 110,000 / 49,895 |
| Engine Weight (lbs / kg) | 140,000 / 63,503 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 |
| Total Engine and Tender Weight (lbs / kg) | 230,000 / 104,326 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10 / 9 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 61 / 30.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 200 / 1380 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 26" / 483x660 |
| Tractive Effort (lbs / kg) | 28,493 / 12924.22 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.86 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 290 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.50 / 4.11 |
| Firebox Area (sq ft / m2) | 126 / 11.71 |
| Grate Area (sq ft / m2) | 38.50 / 3.58 |
| Evaporative Heating Surface (sq ft / m2) | 2163 / 201.02 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2163 / 201.02 |
| Evaporative Heating Surface/Cylinder Volume | 253.58 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7700 |
| Same as above plus superheater percentage | 7700 |
| Same as above but substitute firebox area for grate area | 25,200 |
| Power L1 | 6112 |
| Power MT | 367.49 |