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Erie class N-1
To accelerate heavy freight trains, the Erie Railroad ordered 20 class N-1 locomotives from Baldwin in 1911, which were the heaviest Mikados at the time. Since this design was a success, a total of 135 more were order...
| Erie class N-1Remove | |
|---|---|
| Variant | |
| Built | 1911-1913 |
| Manufacturers | ALCO;Baldwin;Lima |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 149051 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Erie class N-1Remove |
|---|---|
| Built | 1911-1913 |
| Manufacturers | ALCO, Baldwin, Lima |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Erie class N-1Remove |
|---|---|
| Wheelbase | 10.67 m |
| Total wheelbase | 20.38 m |
| Service mass | 149.1 t |
| Adhesion mass | 107.5 t |
| Total mass | 230.8 t |
| Rigid wheelbase | 5.03 m |
| Axle load | 27.9 t |
| Water capacity | 34,069 l |
| Fuel capacity | 14.5 t (coal) |
Boiler
| Property | Erie class N-1Remove |
|---|---|
| Grate area | 6.503 m² |
| Firebox surface | 24.434 m² |
| Tube heating surface | 365.945 m² |
| Evaporative heating surface | 390.379 m² |
| Superheater surface | 81.476 m² |
| Total heating surface | 471.9 m² |
Power plant
| Property | Erie class N-1Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 11.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 711 x 813 mm |
Power
| Property | Erie class N-1Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,051 kW (2,789 PS) |
| Starting effort | 256.0 kN |
Calculated values
| Property | Erie class N-1Remove |
|---|---|
| Factor of adhesion | 1 : 4.12 |
| Optimal speed | 48 km/h |
| Power-to-weight ratio | 13.8 kW/t |
| Heating Surface Equivalent | 675.5 m² |
| Cylinder volume/HSE | 1 : 956.01 |
| Adhesive weight/Total | 1 : 1.39 |
| Tractive force/Heating surface | 1 : 11.33 |
| Grate area/Heating surface | 1 : 72.56 |
| Firebox/Tube surface | 1 : 14.98 |
| Total/Superheater | 1 : 4.79 |
