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Victorian Railways class M
The class M was a 4-4-0T tank locomotive for suburban service around Melbourne. The prototype No. 40 was built in 1879 by Beyer Peacock and delivered to Australia. 21 more were built by the Phoenix Foundry in Victoria...
General
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Built | 1901-1905 |
| Manufacturers | Newport |
| Wheel arrangement | 4-4-2T (Atlantic) |
| Gauge | 1,600 mm (Irish broad gauge) |
Dimensions and weights
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Wheelbase | 7.70 m |
| Rigid wheelbase | 2.29 m |
| Empty weight | 40.1 t |
| Service weight | 51.1 t |
| Adhesive weight | 28.4 t |
| Axle load | 14.4 t |
| Water capacity | 8,547 l |
| Fuel capacity | 3 t (coal) |
Boiler
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Grate area | 1.347 m² |
| Firebox surface | 9.105 m² |
| Tube heating surface | 86.121 m² |
| Evaporative heating surface | 95.226 m² |
| Total heating surface | 95.2 m² |
Power plant
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Driver diameter | 1,626 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 508 mm |
Power
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Power source | steam |
| Estimated power | 317 kW (431 PS) |
| Starting effort | 68.9 kN |
Calculated values
| Property | Victorian Railways class M rebuilt M[h]E[/h] |
|---|---|
| Factor of adhesion | 1 : 4.04 |
| Optimal speed | 27 km/h |
| Power-to-weight ratio | 6.2 kW/t |
| Heating Surface Equivalent | 140.8 m² |
| Cylinder volume/HSE | 1 : 1,185.07 |
| Adhesive weight/Total | 1 : 1.80 |
| Tractive force/Heating surface | 1 : 15.11 |
| Grate area/Heating surface | 1 : 70.69 |
| Firebox/Tube surface | 1 : 9.46 |
