Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 63, p 227. Works number was 54026 in November 1920.
Saddle tanks on plantations were by no means an unusual sight and this Hawaiian planter was satisfied enough with Baldwin's 1907 six-coupled radial tank (Locobase 13156) to order a second engine, but abbreviated the design by eliminating an axle.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 2 |
| Locobase ID | 14751 |
| Railroad | Ko'olau Railway |
| Country | USA |
| Whyte | 0-4-2ST |
| Number in Class | 1 |
| Road Numbers | 2 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1920 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.75 / 1.14 |
| Engine Wheelbase (ft / m) | 9.58 / 2.92 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 9.58 / 2.92 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 20,000 / 9072 |
| Engine Weight (lbs / kg) | 26,000 / 11,793 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 300 / 1.14 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 150 / 568 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 17 / 8.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 28 / 711 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8" x 12" / 203x305 |
| Tractive Effort (lbs / kg) | 3730 / 1691.90 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.36 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 57 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.65 / 2.03 |
| Firebox Area (sq ft / m2) | 25 / 2.32 |
| Grate Area (sq ft / m2) | 6 / 0.56 |
| Evaporative Heating Surface (sq ft / m2) | 175 / 16.26 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 175 / 16.26 |
| Evaporative Heating Surface/Cylinder Volume | 250 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 960 |
| Same as above plus superheater percentage | 960 |
| Same as above but substitute firebox area for grate area | 4000 |
| Power L1 | 3200 |
| Power MT | 705.48 |