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New Haven classes J-1 and J-2
The New Haven only operated two classes of Mikados, all of which were built by ALCO-Schenectady in 1916. All had drivers of 63 inches and a grate area of 59.2 square feet , but the two classes differed in size. The la...
| New Haven classes J-1 and J-2Remove | |
|---|---|
| Variant | |
| Built | 1916 |
| Manufacturers | ALCO |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | 23425 mm |
| Service mass | 140432 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Built | 1916 |
| Manufacturers | ALCO |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Length | 23.43 m |
| Wheelbase | 10.77 m |
| Total wheelbase | 20.46 m |
| Service mass | 140.4 t |
| Adhesion mass | 108.9 t |
| Total mass | 210.3 t |
| Rigid wheelbase | 5.18 m |
| Axle load | 27.5 t |
| Water capacity | 28,012 l |
| Fuel capacity | 10.9 t (coal) |
Boiler
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Grate area | 5.5 m² |
| Firebox surface | 29.822 m² |
| Tube heating surface | 329.156 m² |
| Evaporative heating surface | 358.978 m² |
| Superheater surface | 80.826 m² |
| Total heating surface | 439.8 m² |
Power plant
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 660 x 813 mm |
Power
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,088 kW (2,839 PS) |
Calculated values
| Property | New Haven classes J-1 and J-2Remove |
|---|---|
| Power-to-weight ratio | 14.9 kW/t |
| Heating Surface Equivalent | 669.7 m² |
| Cylinder volume/HSE | 1 : 831.40 |
| Adhesive weight/Total | 1 : 1.29 |
| Grate area/Heating surface | 1 : 79.96 |
| Firebox/Tube surface | 1 : 11.04 |
| Total/Superheater | 1 : 4.44 |
