Nederlandse Speerwegen 0-8-0 Locomotives in Netherlands
Class Details by Steve Llanso of Sweat House Media
Class 4700 (Locobase 4839)
Data and details from Dirty Nico's Steamdepot [
]
This three-cylinder freight engine design first entered service with the Swedish private railway Trafik AB Grangesberg-Oxelosund Jarnvag (TGOJ). When the Nederlandse Speerwegen looked to replace the hundreds of locomotives destroyed in World War II, they contracted for several types, one of which was this eight-coupled. Most served the NS until 1958.
Edwin Boer, of [] (14 March 2004) says this class was nicknamed "Kerstboom" ("Christmas tree") because of electric marker lights and electric cab lighting.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 4700 |
| Locobase ID | 4839 |
| Railroad | Nederlandse Speerwegen |
| Country | Netherlands |
| Whyte | 0-8-0 |
| Number in Class | 35 |
| Road Numbers | 4701- 4735 |
| Gauge | Std |
| Number Built | 35 |
| Builder | Nydqvist & Holm (NOHAB) |
| Year | 1945 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 16.24 / 4.95 |
| Engine Wheelbase (ft / m) | 16.24 / 4.95 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.59 / 14.51 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 41,226 / 18,700 |
| Weight on Drivers (lbs / kg) | 164,904 / 74,799 |
| Engine Weight (lbs / kg) | 164,094 / 74,432 |
| Tender Loaded Weight (lbs / kg) | 102,734 / 46,599 |
| Total Engine and Tender Weight (lbs / kg) | 266,828 / 121,031 |
| Tender Water Capacity (gals / ML) | 5280 / 20 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 69 / 34.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 53.10 / 1349 |
| Boiler Pressure (psi / kPa) | 188.50 / 1300 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.69" x 25.98" / 500x660 (3) |
| Tractive Effort (lbs / kg) | 45,589 / 20678.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.62 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 132.35 / 12.30 |
| Grate Area (sq ft / m2) | 32.50 / 3.02 |
| Evaporative Heating Surface (sq ft / m2) | 1594 / 148.14 |
| Superheating Surface (sq ft / m2) | 522 / 48.51 |
| Combined Heating Surface (sq ft / m2) | 2116 / 196.65 |
| Evaporative Heating Surface/Cylinder Volume | 116.06 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6126 |
| Same as above plus superheater percentage | 7658 |
| Same as above but substitute firebox area for grate area | 31,185 |
| Power L1 | 8446 |
| Power MT | 451.66 |