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New York Central class L-4 “Mohawk”
Based on the success of the L-3 Mohawks, the New York Central designed a faster variant that was designated L-4. It had the same boiler, but drivers which were 72 instead of 69 inches and cylinders with a diameter tha...
General
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Built | 1942-1943 |
| Manufacturers | Lima |
| Wheel arrangement | 4-8-2 (Mountain) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Wheelbase | 13.13 m |
| Rigid wheelbase | 5.79 m |
| Total wheelbase | 29.26 m |
| Service weight | 181.9 t |
| Adhesive weight | 120.9 t |
| Axle load | 30.2 t |
| Total weight | 354.2 t |
| Water capacity | 57,538 l |
| Fuel capacity | 38.6 t (coal) |
Boiler
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Grate area | 6.996 m² |
| Firebox surface | 34.653 m² |
| Tube heating surface | 399.762 m² |
| Evaporative heating surface | 434.415 m² |
| Superheater surface | 193.424 m² |
| Total heating surface | 627.8 m² |
Power plant
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Driver diameter | 1,829 mm |
| Boiler pressure | 17.2 bar |
| Expansion type | simple expansion |
| Cylinders | two, 660 x 762 mm |
Power
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,818 kW (5,191 PS) |
| Starting effort | 266.2 kN |
Calculated values
| Property | New York Central class L-4 “Mohawk”Remove |
|---|---|
| Factor of adhesion | 1 : 4.45 |
| Optimal speed | 89 km/h |
| Power-to-weight ratio | 21.0 kW/t |
| Heating Surface Equivalent | 994.5 m² |
| Cylinder volume/HSE | 1 : 524.89 |
| Adhesive weight/Total | 1 : 1.51 |
| Tractive force/Heating surface | 1 : 8.86 |
| Grate area/Heating surface | 1 : 89.74 |
| Firebox/Tube surface | 1 : 11.54 |
| Total/Superheater | 1 : 2.25 |
