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Burma Railways class As
The Burma Railways class As was built in 1916 by Beyer, Peacock & Co. for light suburban passenger traffic. These eight tank locomotives had the wheel arrangement 4-6-4T and a slender boiler. The Belpaire firebox was ...
General
| Property | Burma Railways class AsRemove |
|---|---|
| Built | 1916 |
| Manufacturers | Beyer, Peacock & Co. |
| Wheel arrangement | 4-6-4T (Hudson) |
| Gauge | 1,000 mm (Meter gauge) |
Dimensions and weights
| Property | Burma Railways class AsRemove |
|---|---|
| Wheelbase | 9.20 m |
| Rigid wheelbase | 3.66 m |
| Service weight | 61.4 t |
| Adhesive weight | 30.2 t |
| Axle load | 10.1 t |
| Water capacity | 5,001 l |
| Fuel capacity | 3 t (coal) |
Boiler
| Property | Burma Railways class AsRemove |
|---|---|
| Grate area | 1.431 m² |
| Firebox surface | 9.29 m² |
| Tube heating surface | 63.36 m² |
| Evaporative heating surface | 72.65 m² |
| Superheater surface | 14.493 m² |
| Total heating surface | 87.1 m² |
Power plant
| Property | Burma Railways class AsRemove |
|---|---|
| Driver diameter | 1,219 mm |
| Boiler pressure | 12.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 381 x 559 mm |
Power
| Property | Burma Railways class AsRemove |
|---|---|
| Power source | steam |
| Estimated power | 522 kW (710 PS) |
| Starting effort | 72.1 kN |
Calculated values
| Property | Burma Railways class AsRemove |
|---|---|
| Factor of adhesion | 1 : 4.10 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 8.5 kW/t |
| Heating Surface Equivalent | 148.1 m² |
| Cylinder volume/HSE | 1 : 860.42 |
| Adhesive weight/Total | 1 : 2.03 |
| Tractive force/Heating surface | 1 : 17.29 |
| Grate area/Heating surface | 1 : 60.90 |
| Firebox/Tube surface | 1 : 6.82 |
| Total/Superheater | 1 : 5.01 |
