Imperial Government Railways 0-4-2 Locomotives in Japan
Class Details by Steve Llanso of Sweat House Media
Class O/D1/5000 (Locobase 11036)
Data from [
] and the Japanese-language blogging site [] and []. See also "Types of Locomotives Used on the Japanese Railways" , Railway Review, Volume 33, No 24 (17 June 1893), pp. 374-375. Works numbers were 2141-2142.
Trailing load of 195 tons up a 1% grade at 20 mph.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | O/D1/5000 |
| Locobase ID | 11036 |
| Railroad | Imperial Government Railways (JGR) |
| Country | Japan |
| Whyte | 0-4-2 |
| Number in Class | 2 |
| Road Numbers | A-B/4, 2/5001, 5000 |
| Gauge | 3'6" |
| Number Built | 2 |
| Builder | Sharp, Stewart |
| Year | 1871 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.50 / 1.98 |
| Engine Wheelbase (ft / m) | 12.50 / 3.81 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 32.30 / 9.85 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 21,840 / 9906 |
| Weight on Drivers (lbs / kg) | 43,232 / 19,610 |
| Engine Weight (lbs / kg) | 56,896 / 25,808 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1440 / 5.45 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.70 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 |
| Tractive Effort (lbs / kg) | 10,908 / 4947.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.96 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 12.83 / 1.19 |
| Evaporative Heating Surface (sq ft / m2) | 772 / 71.75 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 772 / 71.75 |
| Evaporative Heating Surface/Cylinder Volume | 171.57 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1796 |
| Same as above plus superheater percentage | 1796 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |