Saxon VIII V 2
German Reichsbahn class 369-10 and Polish State Railways Od101
For use with heavy passenger trains, the VIII V 2 was derived from the VIII V 1 express locomotive. It received significantly smaller diving wheels, but still had a two-cylinder compound engine and a Belpaire firebox. The latter had a smaller grate here, but apparently a larger firebox area. The cylinders were now somewhat smaller. The locomotives were primarily used on mountainous routes and were also used there in front of express trains, despite the maximum speed of only 80 km/h (50 mph). After the First World War, one came to Poland as Od101, while another 111 came to the Reichsbahn as the class 369-10. They were soon replaced by superheated locomotives and retired by 1931.
Technical data
General
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Built | 1896-1897 | 1897-1899 | 1900-1902 |
| Manufacturers | Hartmann, BMAG, Esslingen, Linke-Hoffmann | ||
| Wheel arrangement | 4-4-0 (American) | ||
| Gauge | 1,435 mm (Standard gauge) | ||
Dimensions and weights
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Length | 16.79 m | ||
| Wheelbase | 6.60 m | ||
| Total wheelbase | 13.90 m | ||
| Empty mass | 44.7 t | 45.5 t | 49 t |
| Service mass | 49.5 t | 51.6 t | 54.5 t |
| Adhesion mass | 29.1 t | 30.2 t | 32 t |
| Axle load | 14.5 t | 15.1 t | 16 t |
| Water capacity | 9,000 l | 16,000 l | 21,000 l |
Boiler
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Grate area | 1.87 m² | ||
| Firebox surface | 13.4 m² | 15.6 m² | |
| Tube heating surface | 103.1 m² | 121.3 m² | |
| Evaporative heating surface | 116.5 m² | 136.9 m² | |
| Total heating surface | 116.5 m² | 136.9 m² | |
Power plant
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Driver diameter | 1,590 mm | ||
| Boiler pressure | 12 bar | 13 bar | |
| Expansion type | compound | ||
| Cylinders | two, HP: 440 x 600 mm and LP: 650 x 600 mm | two, HP: 460 x 600 mm and LP: 680 x 600 mm | |
Power
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Power source | steam | ||
| Estimated power | 500 kW (680 PS) | 550 kW (748 PS) | |
| Top speed | 80 km/h | ||
| Starting effort | 51.1 kN | 55.9 kN | 60.5 kN |
| Starting effort simple | 61.3 kN | 67.0 kN | 72.6 kN |
Calculated values
| Property | 519-538 | 539-568 | 569-636 |
|---|---|---|---|
| Factor of adhesion | 1 : 5.59 | 1 : 5.30 | 1 : 5.19 |
| Optimal speed | 60 km/h | 55 km/h | 56 km/h |
| Power-to-weight ratio | 10.1 kW/t | 9.7 kW/t | 10.1 kW/t |
| Heating Surface Equivalent | 183.5 m² | 214.9 m² | |
| Cylinder volume/HSE | 1 : 1,039.68 | 1 : 1,137.14 | 1 : 970.98 |
| Adhesive weight/Total | 1 : 1.70 | 1 : 1.71 | 1 : 1.70 |
| Tractive force/Heating surface | 1 : 9.16 | 1 : 10.02 | 1 : 9.23 |
| Grate area/Heating surface | 1 : 62.30 | 1 : 73.21 | |
| Firebox/Tube surface | 1 : 7.69 | 1 : 7.78 | |
