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Maine Central classes C-3 and C-3B
After the C, C-1 and C-2 class Pacifics, the Maine Central ordered the C-3 class machines. Three locomotives were delivered in 1917 and two more C-3Bs in 1924. Compared to their predecessors, they had larger cylinders...
General
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Built | 1933-1934 |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Wheelbase | 10.26 m |
| Rigid wheelbase | 3.96 m |
| Total wheelbase | 20.88 m |
| Service weight | 127.3 t |
| Adhesive weight | 80.4 t |
| Axle load | 24.3 t |
| Total weight | 213.8 t |
| Water capacity | 34,826 l |
| Fuel capacity | 11.8 t (coal) |
Boiler
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Grate area | 5.249 m² |
| Firebox surface | 28.958 m² |
| Tube heating surface | 252.817 m² |
| Evaporative heating surface | 281.775 m² |
| Superheater surface | 59.086 m² |
| Total heating surface | 340.9 m² |
Power plant
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Driver diameter | 1,854 mm |
| Boiler pressure | 13.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 610 x 711 mm |
Power
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,752 kW (2,382 PS) |
| Starting effort | 162.9 kN |
Calculated values
| Property | Maine Central classes C-3 and C-3B Remove |
|---|---|
| Factor of adhesion | 1 : 4.84 |
| Optimal speed | 66 km/h |
| Power-to-weight ratio | 13.8 kW/t |
| Heating Surface Equivalent | 544.7 m² |
| Cylinder volume/HSE | 1 : 762.10 |
| Adhesive weight/Total | 1 : 1.58 |
| Tractive force/Heating surface | 1 : 9.98 |
| Grate area/Heating surface | 1 : 64.94 |
| Firebox/Tube surface | 1 : 8.73 |
| Total/Superheater | 1 : 4.77 |
