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 [
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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 Middle Run Media | |
|---|---|
| Class | Catherine |
| Locobase ID | 12304 |
| Railroad | Bridgetown & Saint Andrews Bay |
| Country | Barbados |
| Whyte | 2-6-0T |
| Number in Class | 2 |
| Road Numbers | 3-4 |
| Gauge | 2'6" |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1898 |
| Valve Gear | Stephenson |
| 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) | |
| 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 / 1100 |
| 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 Volume | 181.83 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1376 |
| Same as above plus superheater percentage | 1376 |
| Same as above but substitute firebox area for grate area | 5760 |
| Power L1 | 2273 |
| Power MT | 455.55 |