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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...
| Hungarian Machine Factories type 70Remove | |
|---|---|
| Variant | Reșița, Reghin |
| Built | 1951-1958, 1982-1987 |
| Manufacturers | Reșița;Reghin |
| Wheel arrangement | D t |
| Gauge | 760 mm |
| Length | 7465 mm |
| Service mass | 24800 kg |
| Top speed | 30 km/h |
| Power | |
| Engine |
General
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Built | 1951-1958, 1982-1987 |
| Manufacturers | Reș, iț, a, Reghin |
| Wheel arrangement | 0-8-0T (Eight-coupled) |
| Gauge | 760 mm |
Dimensions and weights
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Length | 7.47 m |
| Wheelbase | 3.35 m |
| Service mass | 24.8 t |
| Adhesion mass | 24.8 t |
| Rigid wheelbase | 3.35 m |
| Axle load | 6.2 t |
| Water capacity | 2,000 l |
| Fuel capacity | 1.3 t (coal) |
Boiler
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Grate area | 1.18 m² |
| Firebox surface | 5.13 m² |
| Tube heating surface | 36.57 m² |
| Evaporative heating surface | 41.7 m² |
| Total heating surface | 41.7 m² |
Power plant
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Driver diameter | 750 mm |
| Boiler pressure | 14 bar |
| Expansion type | simple expansion |
| Cylinders | two, 320 x 360 mm |
Power
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Power source | steam |
| Indicated power | 154 kW (209 PS) |
| Top speed | 30 km/h |
| Starting effort | 58.5 kN |
Calculated values
| Property | Hungarian Machine Factories type 70Reșița, Reghin |
|---|---|
| Factor of adhesion | 1 : 4.16 |
| Optimal speed | 16 km/h |
| Power-to-weight ratio | 6.2 kW/t |
| Heating Surface Equivalent | 67.4 m² |
| Cylinder volume/HSE | 1 : 859.77 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 29.29 |
| Grate area/Heating surface | 1 : 35.34 |
| Firebox/Tube surface | 1 : 7.13 |
