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Hungarian State Railways In
The series In consisted of 24 Atlantic express locomotives built by MÁVAG between 1906 and 1908. In contrast to the two-cylinder prototypes Il and Im built in 1901, they were four-cylinder compounds and were longer an...
General
| Property | Hungarian State Railways In as built |
|---|---|
| Built | 1906-1908 |
| Manufacturers | MÁVAG |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Hungarian State Railways In as built |
|---|---|
| Length | 20.70 m |
| Length loco | 12.32 m |
| Wheelbase | 9.76 m |
| Rigid wheelbase | 2.20 m |
| Empty weight | 67.1 t |
| Service weight | 74.4 t |
| Adhesive weight | 31.7 t |
| Axle load | 15.9 t |
| Total weight | 121.8 t |
| Water capacity | 18,000 l |
| Fuel capacity | 8 t (coal) |
Boiler
| Property | Hungarian State Railways In as built |
|---|---|
| Grate area | 3.895 m² |
| Firebox surface | 12.65 m² |
| Tube heating surface | 251.35 m² |
| Evaporative heating surface | 264 m² |
| Total heating surface | 264.0 m² |
Power plant
| Property | Hungarian State Railways In as built |
|---|---|
| Driver diameter | 2,100 mm |
| Boiler pressure | 16 bar |
| Expansion type | compound |
| Cylinders | four, HP: 360 x 660 mm and LP: 620 x 660 mm |
Power
| Property | Hungarian State Railways In as built |
|---|---|
| Power source | steam |
| Indicated power | 1,200 kW (1,632 PS) |
| Top speed | 100 km/h |
| Starting effort | 82.9 kN |
| Starting effort simple | 99.4 kN |
Calculated values
| Property | Hungarian State Railways In as built |
|---|---|
| Factor of adhesion | 1 : 3.75 |
| Optimal speed | 89 km/h |
| Power-to-weight ratio | 16.1 kW/t |
| Heating Surface Equivalent | 327.3 m² |
| Cylinder volume/HSE | 1 : 1,019.46 |
| Adhesive weight/Total | 1 : 2.35 |
| Tractive force/Heating surface | 1 : 6.55 |
| Grate area/Heating surface | 1 : 67.78 |
| Firebox/Tube surface | 1 : 19.87 |
