Data from [] accessed in January 2002 and and from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 24, p. 122. Works number was 19796 in 1896
A Vauclain compound Mikado delivered to the WMR, this was produced in 1896 (works #19796) together with one of the compound Prairies. The advantages of a trailing axle are obvious when #17 is compared to the WMR's Consolidations. The boiler's heating surface increased by 42% while the grate area grew by 50%; the latter growth suggests that a lot of the heating surface increase was directly heated by the firebox.
This Mike was taken into the New Zealand Government Railways when the W&M was absorbed in 1908 as Class Bc, #463. Of the WMR's inheritance, however, #463 was one of the first to be withdrawn, leaving in March 1927
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Bc |
| Locobase ID | 4968 |
| Railroad | Wellington & Manawatu |
| Country | New Zealand |
| Whyte | 2-8-2 |
| Number in Class | 1 |
| Road Numbers | 17 |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1896 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.75 / 3.58 |
| Engine Wheelbase (ft / m) | 24.17 / 7.37 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.49 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.33 / 14.43 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 20,860 / 9462 |
| Weight on Drivers (lbs / kg) | 80,892 / 36,692 |
| Engine Weight (lbs / kg) | 101,528 / 46,052 |
| Tender Loaded Weight (lbs / kg) | 58,240 / 26,417 |
| Total Engine and Tender Weight (lbs / kg) | 159,768 / 72,469 |
| Tender Water Capacity (gals / ML) | 1992 / 7.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43 / 1092 |
| Boiler Pressure (psi / kPa) | 200 / 1380 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11.5" x 20" / 292x508 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 18" x 20" / 457x508 |
| Tractive Effort (lbs / kg) | 14,852 / 6736.76 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.45 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 169 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 16 / 4.88 |
| Firebox Area (sq ft / m2) | 80.40 / 7.47 |
| Grate Area (sq ft / m2) | 25 / 2.32 |
| Evaporative Heating Surface (sq ft / m2) | 1483 / 137.83 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1483 / 137.83 |
| Evaporative Heating Surface/Cylinder Volume | 616.79 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5000 |
| Same as above plus superheater percentage | 5000 |
| Same as above but substitute firebox area for grate area | 16,080 |
| Power L1 | 4587 |
| Power MT | 500.05 |