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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...
| Maine Central classes C-3 and C-3BRemove | |
|---|---|
| Variant | |
| Built | 1917, 1924 |
| Manufacturers | |
| Wheel arrangement | 2C1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 121699 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Built | 1917, 1924 |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Wheelbase | 10.26 m |
| Total wheelbase | 20.88 m |
| Service mass | 121.7 t |
| Adhesion mass | 72.5 t |
| Total mass | 192.9 t |
| Rigid wheelbase | 3.96 m |
| Axle load | 24.2 t |
| Water capacity | 30,283 l |
| Fuel capacity | 12.7 t (coal) |
Boiler
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Grate area | 5.249 m² |
| Firebox surface | 25.363 m² |
| Tube heating surface | 250.838 m² |
| Evaporative heating surface | 276.201 m² |
| Superheater surface | 59.086 m² |
| Total heating surface | 335.3 m² |
Power plant
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Driver diameter | 1,854 mm |
| Boiler pressure | 12.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 635 x 711 mm |
Power
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Power source | steam |
| Estimated power | 1,641 kW (2,231 PS) |
| Starting effort | 167.7 kN |
Calculated values
| Property | Maine Central classes C-3 and C-3BRemove |
|---|---|
| Factor of adhesion | 1 : 4.24 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 13.5 kW/t |
| Heating Surface Equivalent | 521.2 m² |
| Cylinder volume/HSE | 1 : 864.30 |
| Adhesive weight/Total | 1 : 1.68 |
| Tractive force/Heating surface | 1 : 10.45 |
| Grate area/Heating surface | 1 : 63.88 |
| Firebox/Tube surface | 1 : 9.89 |
| Total/Superheater | 1 : 4.67 |
