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Hungarian State Railways and Košice–Bohumín Railway TVa
The TVa or later class 376 was designed for branch lines where the maximum allowed axle loading of eleven tonnes of the TV or class 375 was still too high. It had a similar layout as a 2-6-2T tank locomotive , but was...
General
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Built | 1910-1924 |
| Manufacturers | MÁVAG |
| Wheel arrangement | 2-6-2T (Prairie) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Length | 9.82 m |
| Wheelbase | 6.53 m |
| Rigid wheelbase | 2.58 m |
| Empty weight | 34.6 t |
| Service weight | 44.8 t |
| Adhesive weight | 27 t |
| Axle load | 9 t |
| Water capacity | 5,000 l |
| Fuel capacity | 2 t (coal) |
Boiler
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Grate area | 1.6 m² |
| Firebox surface | 7.05 m² |
| Tube heating surface | 79.49 m² |
| Evaporative heating surface | 86.54 m² |
| Total heating surface | 86.5 m² |
Power plant
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Driver diameter | 1,040 mm |
| Boiler pressure | 14 bar |
| Expansion type | compound |
| Cylinders | two, HP: 370 x 540 mm and LP: 560 x 540 mm |
Power
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Power source | steam |
| Estimated power | 350 kW (476 PS) |
| Top speed | 45 km/h |
| Starting effort | 58.9 kN |
| Starting effort simple | 70.7 kN |
Calculated values
| Property | Hungarian State Railways and Košice–Bohumín Railway TVa compound |
|---|---|
| Factor of adhesion | 1 : 4.50 |
| Optimal speed | 37 km/h |
| Power-to-weight ratio | 7.8 kW/t |
| Heating Surface Equivalent | 121.8 m² |
| Cylinder volume/HSE | 1 : 1,022.77 |
| Adhesive weight/Total | 1 : 1.66 |
| Tractive force/Heating surface | 1 : 14.21 |
| Grate area/Heating surface | 1 : 54.09 |
| Firebox/Tube surface | 1 : 11.28 |
