Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 60, p. 69. Works numbers were 51278-51279 in February 1919.
The Naval Briquette Factory bought these two saddle tanks from Frazar & Company. The factory produced briquettes from anthracite coal for use in the Japanese fleet.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 5 |
| Locobase ID | 14601 |
| Railroad | Tokuyama Naval Briquette Factory |
| Country | Japan |
| Whyte | 0-4-0ST |
| Number in Class | 2 |
| Road Numbers | 5-6 |
| Gauge | 2'6" |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1919 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.33 / 1.01 |
| Engine Wheelbase (ft / m) | 3.33 / 1.01 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 3.33 / 1.01 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 12,800 / 5806 |
| Engine Weight (lbs / kg) | 12,800 / 5806 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 12,800 / 5806 |
| Tender Water Capacity (gals / ML) | 110 / 0.42 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 11 / 5.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 24 / 610 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6" x 12" / 152x305 |
| Tractive Effort (lbs / kg) | 2448 / 1110.40 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 32 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6 / 1.83 |
| Firebox Area (sq ft / m2) | 15.40 / 1.43 |
| Grate Area (sq ft / m2) | 3.50 / 0.33 |
| Evaporative Heating Surface (sq ft / m2) | 90 / 8.36 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 90 / 8.36 |
| Evaporative Heating Surface/Cylinder Volume | 229.18 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 560 |
| Same as above plus superheater percentage | 560 |
| Same as above but substitute firebox area for grate area | 2464 |
| Power L1 | 2722 |
| Power MT | 937.65 |