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Hungarian Machine Factories type 70
The type 70 was a 0-8-0T tank locomotive designed by MÁVAG for work on 760 mm narrow gauge lines. Most notably, this included field and logging railways. For tight curves, it had Klien-Lindner hollow axles which could...
General
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Built | 1906-1914, 1942-1950 |
| Manufacturers | MÁVAG |
| Wheel arrangement | 0-8-0T (Eight-coupled) |
| Gauge | 760 mm (Bosnian gauge) |
Dimensions and weights
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Length | 7.47 m |
| Wheelbase | 3.35 m |
| Rigid wheelbase | 3.35 m |
| Service weight | 22 t |
| Adhesive weight | 22 t |
| Axle load | 5.5 t |
| Water capacity | 2,000 l |
| Fuel capacity | 1 t (coal) |
Boiler
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Grate area | 1.04 m² |
| Firebox surface | 4.7 m² |
| Tube heating surface | 43.45 m² |
| Evaporative heating surface | 48.15 m² |
| Total heating surface | 48.2 m² |
Power plant
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Driver diameter | 750 mm |
| Boiler pressure | 14 bar |
| Expansion type | simple expansion |
| Cylinders | two, 325 x 350 mm |
Power
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Power source | steam |
| Indicated power | 169 kW (230 PS) |
| Top speed | 30 km/h |
| Starting effort | 58.7 kN |
Calculated values
| Property | Hungarian Machine Factories type 70 Remove |
|---|---|
| Factor of adhesion | 1 : 3.68 |
| Optimal speed | 18 km/h |
| Power-to-weight ratio | 7.7 kW/t |
| Heating Surface Equivalent | 71.7 m² |
| Cylinder volume/HSE | 1 : 810.47 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 25.44 |
| Grate area/Heating surface | 1 : 46.30 |
| Firebox/Tube surface | 1 : 9.24 |
