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Hungarian State Railways IIIs
The IIIs, designated class 322 from 1911, was designed for heavy passenger service. It was a four-cylinder compound 2-6-2 that used the same boiler and cylinder dimensions as the In (class 203) 4-4-2 express locomotiv...
| Hungarian State Railways IIIsRemove | |
|---|---|
| Variant | rebuilt ČSD |
| Built | 1929-1930 |
| Manufacturers | Rutka |
| Wheel arrangement | 1C1 |
| Gauge | 1435 mm |
| Length | 19770 mm |
| Service mass | 73560 kg |
| Top speed | 90 km/h |
| Power | |
| Engine |
General
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Built | 1929-1930 |
| Manufacturers | Rutka |
| Wheel arrangement | 2-6-2 (Prairie) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Length | 19.77 m |
| Length loco | 11.77 m |
| Wheelbase | 9.25 m |
| Total wheelbase | 16.34 m |
| Empty mass | 67.1 t |
| Service mass | 73.6 t |
| Adhesion mass | 45.4 t |
| Total mass | 128 t |
| Rigid wheelbase | 3.60 m |
| Axle load | 15.5 t |
| Water capacity | 26,000 l |
| Fuel capacity | 8 t (coal) |
Boiler
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Grate area | 3.86 m² |
| Firebox surface | 12.95 m² |
| Tube heating surface | 185.86 m² |
| Evaporative heating surface | 198.81 m² |
| Superheater surface | 79.78 m² |
| Total heating surface | 278.6 m² |
Power plant
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13 bar |
| Expansion type | simple expansion |
| Cylinders | two, 570 x 660 mm |
Power
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Power source | steam |
| Estimated power | 1,100 kW (1,496 PS) |
| Top speed | 90 km/h |
| Starting effort | 148.1 kN |
Calculated values
| Property | Hungarian State Railways IIIsrebuilt ČSD |
|---|---|
| Factor of adhesion | 1 : 3.00 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 15.0 kW/t |
| Heating Surface Equivalent | 423.1 m² |
| Cylinder volume/HSE | 1 : 796.07 |
| Adhesive weight/Total | 1 : 1.62 |
| Tractive force/Heating surface | 1 : 11.10 |
| Grate area/Heating surface | 1 : 72.17 |
| Firebox/Tube surface | 1 : 14.35 |
| Total/Superheater | 1 : 2.49 |
