Data from Hiroshi Takagi, both from his website ([]) and personal communication August 2000. His indispensable assistance is gratefully acknowledged.
Once the 4100s had been tried in service, Japanese builders began supplying additional locomotives of the same wheel arrangement. Note how the firebox area shrank considerably even as the grate area grew. Tubes are longer, but fewer in number. Like the other 4100s, this class had a slight boiler pressure increase to 185 psi.
Data from Hiroshi Takagi, both from his website ([]) and personal communication August 2000. His indispensable assistance is gratefully acknowledged.
These last eight 4100s had one more superheater flue than the earlier 4110s shown in Locobase 3819.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 4110 | 4140 |
Locobase ID | 3819 | 3820 |
Railroad | Imperial Government Railways (JGR) | Imperial Government Railways (JGR) |
Country | Japan | Japan |
Whyte | 0-10-0T | 0-10-0T |
Number in Class | 30 | 9 |
Road Numbers | 4110-4139 | 4140-4148 |
Gauge | 3'6" | 3'6" |
Number Built | 30 | 9 |
Builder | Kawasaki | Kawasaki |
Year | 1914 | 1917 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 19 / 5.79 | |
Engine Wheelbase (ft / m) | 19 / 5.79 | |
Ratio of driving wheelbase to overall engine wheelbase | 1 | |
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,770 / 13,050 | 28,770 / 13,050 |
Weight on Drivers (lbs / kg) | 143,896 / 65,270 | 143,896 / 65,270 |
Engine Weight (lbs / kg) | 143,896 / 65,270 | 143,896 / 65,270 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 | 48 / 24 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 49 / 1245 | 49 / 1245 |
Boiler Pressure (psi / kPa) | 179.80 / 1240 | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20.98" x 24.02" / 533x610 | 21" x 24" / 533x610 |
Tractive Effort (lbs / kg) | 32,976 / 14957.68 | 33,048 / 14990.34 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.36 | 4.35 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 136 - 1.732" / 44 | 136 - 1.75" / 45 |
Flues (number - dia) (in / mm) | 21 - 5" / 127 | 22 - 5" / 127 |
Flue/Tube length (ft / m) | 12.99 / 3.96 | 13 / 3.96 |
Firebox Area (sq ft / m2) | 95.98 / 8.92 | 95.98 / 8.92 |
Grate Area (sq ft / m2) | 23.99 / 2.23 | 23.99 / 2.23 |
Evaporative Heating Surface (sq ft / m2) | 1262 / 117.33 | 1278 / 118.81 |
Superheating Surface (sq ft / m2) | 344 / 31.96 | 360 / 33.48 |
Combined Heating Surface (sq ft / m2) | 1606 / 149.29 | 1638 / 152.29 |
Evaporative Heating Surface/Cylinder Volume | 131.31 | 132.83 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 4313 | 4318 |
Same as above plus superheater percentage | 5219 | 5268 |
Same as above but substitute firebox area for grate area | 20,881 | 21,077 |
Power L1 | 7391 | 7636 |
Power MT | 566.18 | 584.95 |