Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 25, .p 118. Works number was 21545 in January 1903.
In addition to a set of Vauclain cylinders (2 sets of an HP and an LP cylinder, each served by a common 10 1/2"-diameter piston valve), this Mogul had a Vanderbilt boiler. For a full description of this understandably rare variation on the traditional Stephenson boiler, see Locobase 4104; the most radical part was the firebox, with its cylindrical shape and internal corrugations.
Although the result was a big boiler for a Japanese road at the time, experience elsewhere suggests that this wasn't a very successful divergence from the norm. Redesignated 8250 by JNR in 1907-1909, the engine only lasted until 1919.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 111 |
Locobase ID | 12644 |
Railroad | Sanyo |
Country | Japan |
Whyte | 2-6-0 |
Number in Class | 1 |
Road Numbers | 111 / 112 /8250 |
Gauge | 3'6" |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1902 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 12.50 / 3.81 |
Engine Wheelbase (ft / m) | 20.58 / 6.27 |
Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 86,000 / 39,009 |
Engine Weight (lbs / kg) | 100,000 / 45,359 |
Tender Loaded Weight (lbs / kg) | 54,000 / 24,494 |
Total Engine and Tender Weight (lbs / kg) | 154,000 / 69,853 |
Tender Water Capacity (gals / ML) | 3000 / 11.36 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 50 / 1270 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 24" / 330x610 |
Tractive Effort (lbs / kg) | 13,790 / 6255.05 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.24 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 276 - 1.625" / 41 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.08 / 3.07 |
Firebox Area (sq ft / m2) | 69.50 / 6.46 |
Grate Area (sq ft / m2) | 20 / 1.86 |
Evaporative Heating Surface (sq ft / m2) | 1244 / 115.61 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1244 / 115.61 |
Evaporative Heating Surface/Cylinder Volume | 337.40 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4000 |
Same as above plus superheater percentage | 4000 |
Same as above but substitute firebox area for grate area | 13,900 |
Power L1 | 7194 |
Power MT | 553.26 |