Bisai 4-4-2 Locomotives in Japan


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 2893)

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

Classunknown
Locobase ID2893
RailroadBisai
CountryJapan
Whyte4-4-2T
Number in Class1
Road Numbers1
Gauge3'6"
Number Built1
BuilderBrooks
Year1897
Valve GearStephenson
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 / 11.40
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 Volume233.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1914
Same as above plus superheater percentage1914
Same as above but substitute firebox area for grate area11,105
Power L14346
Power MT532.29

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