Data from "Passenger Locomotive, Norwegian State Railways," The Locomotive & Railway Carriage & Wagon Review, Volume IV (May 1899), p. 72 and Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p.246. Works numbers were 16204-16205 in September 1898.
This pair of small Eight-wheelers was supplied to the Randsfjord narrow-gauge line extension that connected Drammen with Oslo's west side. The 52.9-km (32.9-mile) line opened in 1872 and remained under steam until electrified between 1913 and 1922. The Baldwins had a relatively tall and thin steam dome. NB: The direct heating surface (including the firebox heating surface) is an estimate calculated by subtracting the calculated tube heating surface from the reported total evaporative heating surface.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 38 |
| Locobase ID | 10117 |
| Railroad | Drammen Randsfordbanen (Vestbanerne) |
| Country | Norway |
| Whyte | 4-4-0 |
| Number in Class | 2 |
| Road Numbers | 38-39 |
| Gauge | 3'6" |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1898 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.25 / 1.90 |
| Engine Wheelbase (ft / m) | 17.83 / 5.43 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.35 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 30,315 / 13,751 |
| Engine Weight (lbs / kg) | 47,826 / 21,694 |
| Tender Loaded Weight (lbs / kg) | 29,120 / 13,209 |
| Total Engine and Tender Weight (lbs / kg) | 76,946 / 34,903 |
| Tender Water Capacity (gals / ML) | 1200 / 4.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 25 / 12.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55 / 1397 |
| Boiler Pressure (psi / kPa) | 160 / 11 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 20" / 305x508 |
| Tractive Effort (lbs / kg) | 7121 / 3230.04 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.26 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 113 - 1.625" / 41 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.08 / 2.77 |
| Firebox Area (sq ft / m2) | 73 / 6.78 |
| Grate Area (sq ft / m2) | 8.80 / 0.82 |
| Evaporative Heating Surface (sq ft / m2) | 507 / 47.12 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 507 / 47.12 |
| Evaporative Heating Surface/Cylinder Volume | 193.66 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1408 |
| Same as above plus superheater percentage | 1408 |
| Same as above but substitute firebox area for grate area | 11,680 |
| Power L1 | 4885 |
| Power MT | 710.51 |