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 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 |