Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 71, pp. 198+. Works numbers were 52726 in December 1919, 55399 in May 1922, and 56291 in March 1923.
This logging Mike is a duplicate of the US-based Brooks-Scanlon 2-8-2s shown in Locobase 14691. Like the #6 of that class, the 2 was originally intended for United Fruit's Guatemala operations as their D-2. Instead, it was apparently diverted and wound up in British Columbia.
As an oil burner, the 2 used a straight stack. The superheater dictated the use of piston valves (8"/203 mm diameter). Steep 5% grades prompted a note that the fire box crown was to be arranged for such inclinations.
Sometime later, the 2 was renumbered 7.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 2 |
| Locobase ID | 14692 |
| Railroad | Brooks-Scanlon-O'Brien - BC |
| Country | Canada |
| Whyte | 2-8-2 |
| Number in Class | 1 |
| Road Numbers | 2/7 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1923 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12 / 3.66 |
| Engine Wheelbase (ft / m) | 27.58 / 8.41 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 50.17 / 15.29 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 118,100 / 53,569 |
| Engine Weight (lbs / kg) | 144,000 / 65,317 |
| Tender Loaded Weight (lbs / kg) | 88,000 / 39,916 |
| Total Engine and Tender Weight (lbs / kg) | 232,000 / 105,233 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2000 / 7570 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 190 / 1310 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 28,541 / 12946.00 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.14 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 164 - 2" / 51 |
| Flues (number - dia) (in / mm) | 24 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 12.08 / 3.68 |
| Firebox Area (sq ft / m2) | 141 / 13.10 |
| Grate Area (sq ft / m2) | 25.50 / 2.37 |
| Evaporative Heating Surface (sq ft / m2) | 1576 / 146.47 |
| Superheating Surface (sq ft / m2) | 328 / 30.48 |
| Combined Heating Surface (sq ft / m2) | 1904 / 176.95 |
| Evaporative Heating Surface/Cylinder Volume | 222.91 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4845 |
| Same as above plus superheater percentage | 5669 |
| Same as above but substitute firebox area for grate area | 31,344 |
| Power L1 | 10,313 |
| Power MT | 770.07 |