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 2779 in July 1897.
Tiny tank engine with thimble-shaped steam dome. In 1897, the equally diminuitive Bisai railway measured 15 miles (24.2 km).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 2893 |
| Railroad | Bisai |
| Country | Japan |
| Whyte | 4-4-2T |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Brooks |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 24 / 7.32 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.31 |
| Overall Wheelbase (engine & tender) (ft / m) | 24 / 7.32 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 36,000 / 16,329 |
| Engine Weight (lbs / kg) | 58,000 / 26,308 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 58,000 / 26,308 |
| Tender Water Capacity (gals / ML) | 700 / 2.65 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.80 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 8655 / 3925.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.16 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 118 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9 / 2.74 |
| Firebox Area (sq ft / m2) | 67.30 / 6.25 |
| Grate Area (sq ft / m2) | 11.60 / 1.08 |
| Evaporative Heating Surface (sq ft / m2) | 550 / 51.12 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 550 / 51.12 |
| Evaporative Heating Surface/Cylinder Volume | 233.43 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1914 |
| Same as above plus superheater percentage | 1914 |
| Same as above but substitute firebox area for grate area | 11,105 |
| Power L1 | 4346 |
| Power MT | 532.29 |