Data from Baldwin Locomotive Works, Record of Recent Construction ((1903), No. 35, p. 190-191. See also DeGolyer, Volume 24, p. 257. Works numbers were 20324-20325.
These powerful little Consolidations operated as Vauclain compounds for only a few years before being rebuilt in 1906 as 16 1/2" x 20" simple-expansion engines. The design sported a combustion chamber that contributed 18.6 sq ft to the firebox heating surface. In that configuration they served the OR & L for another 30-plus before being retired in 1948 with the closing of all of the line outside of terminal areas.
The OR&L opened in 1889 on a 12-mile stretch of rail between Honolulu and 'Aiea and gradually expanded to cover 160 miles that included double-tracked main and automatic block signals. At its busiest, the line ran 80 trains a day.
The OR&L served much of Oah'u up through the World War II years, then lost ground quickly to motorized freight and passenger vehicles and much of the OR & L was taken up in 1947 after a strike closed down 33 of 34 sugar plantations and a 1946 tsunami swamped much of the OR & L's tracks.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 22 |
Locobase ID | 10782 |
Railroad | Oahu Railway & Land Company |
Country | USA |
Whyte | 2-8-0 |
Number in Class | 2 |
Road Numbers | 22, 31 |
Gauge | 3' |
Number Built | 2 |
Builder | Burnham, Williams & Co |
Year | 1902 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 11 / 3.35 |
Engine Wheelbase (ft / m) | 18.08 / 5.51 |
Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
Overall Wheelbase (engine & tender) (ft / m) | 42.50 / 12.95 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 82,360 / 37,358 |
Engine Weight (lbs / kg) | 90,260 / 40,941 |
Tender Loaded Weight (lbs / kg) | 34,740 / 15,758 |
Total Engine and Tender Weight (lbs / kg) | 125,000 / 56,699 |
Tender Water Capacity (gals / ML) | 1800 / 6.82 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 38 / 965 |
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) | 19" x 20" / 483x508 |
Tractive Effort (lbs / kg) | 17,321 / 7856.68 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.75 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 122 - 2.25" / 57 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 13.23 / 4.03 |
Firebox Area (sq ft / m2) | 84.70 / 7.87 |
Grate Area (sq ft / m2) | 15.70 / 1.46 |
Evaporative Heating Surface (sq ft / m2) | 1028 / 95.54 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1028 / 95.54 |
Evaporative Heating Surface/Cylinder Volume | 427.12 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 3140 |
Same as above plus superheater percentage | 3140 |
Same as above but substitute firebox area for grate area | 16,940 |
Power L1 | 2801 |
Power MT | 299.91 |