Bridgetown & Saint Andrews Bay 2-6-0 Locomotives in Barbados


Class Details by Steve Llanso of Sweat House Media

Class Catherine (Locobase 12304)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 21, p. 297. Works numbers were 16269-16270 in October 1898. See also Bajan Tour Girl's blog on the railway at []

See Locobase 12303 for a description of this railway and the first two engines produced for its 2' 6" version. The 3rd and 4th locomotives -- Catherine and Dorothy -- were originally ordered as all-adhesion engines, but had a front truck added before they were delivered. The addition was prompted by both the installation of a copper firebox (vs steel) and a brake while still trying to hold the axle loading to 5 tons.

Although the fireboxes were different in area, the boiler had the same number of tubes and the same diameter. Each tube in these two was more than 5 feet shorter than the 2-8-2T tubes, however.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassCatherine
Locobase ID12304
RailroadBridgetown & Saint Andrews Bay
CountryBarbados
Whyte2-6-0T
Number in Class2
Road Numbers3-4
Gauge2'6"
Number Built2
BuilderBurnham, Williams & Co
Year1898
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)12.50 / 3.81
Ratio of driving wheelbase to overall engine wheelbase 0.60
Overall Wheelbase (engine & tender) (ft / m)12.50 / 3.81
Axle Loading (Maximum Weight per Axle) (lbs / kg)10,000 / 4536
Weight on Drivers (lbs / kg)33,000 / 14,969
Engine Weight (lbs / kg)43,000 / 19,504
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)43,000 / 19,504
Tender Water Capacity (gals / ML)300 / 1.14
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)18 / 9
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)30 / 762
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)11" x 16" / 279x406
Tractive Effort (lbs / kg)8777 / 3981.18
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.76
Heating Ability
Tubes (number - dia) (in / mm)96 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.58 / 2.01
Firebox Area (sq ft / m2)36 / 3.35
Grate Area (sq ft / m2) 8.60 / 0.80
Evaporative Heating Surface (sq ft / m2)320 / 29.74
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)320 / 29.74
Evaporative Heating Surface/Cylinder Volume181.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1376
Same as above plus superheater percentage1376
Same as above but substitute firebox area for grate area5760
Power L12273
Power MT455.55

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