Data from Catalogue Descriptive of Simple and Compound Locomotives built by Brooks Locomotive Works, Dunkirk, NY (Buffalo, NY: Matthew-Northrup Company, 1899). Works number was 2778 in July 1897.
The catalogue's photo shows a little tank with cylinders ahead of a short wheelbase and firebox inside a quite oversized cab behind it.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 9635 |
| Railroad | Nanyo |
| Country | Japan |
| Whyte | 0-4-0T |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | Brooks |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.50 / 1.37 |
| Engine Wheelbase (ft / m) | 4.50 / 1.37 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4.50 / 1.37 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 23,000 / 10,433 |
| Engine Weight (lbs / kg) | 23,000 / 10,433 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 380 / 1.44 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 30 / 762 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8" x 14" / 203x356 |
| Tractive Effort (lbs / kg) | 3808 / 1727.28 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.04 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 56 - 1.625" / 41 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8 / 2.44 |
| Firebox Area (sq ft / m2) | 22.40 / 2.08 |
| Grate Area (sq ft / m2) | 4.30 / 0.40 |
| Evaporative Heating Surface (sq ft / m2) | 234 / 21.75 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 234 / 21.75 |
| Evaporative Heating Surface/Cylinder Volume | 287.30 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 645 |
| Same as above plus superheater percentage | 645 |
| Same as above but substitute firebox area for grate area | 3360 |
| Power L1 | 3186 |
| Power MT | 610.78 |