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New Haven class I-5
In the mid-1930s, the New Haven had a requirement to haul a twelve-car (830 short tons) train at 60 mph (97 km/h) on a 0.6 to 0.7 percent grade. Since only 40 or 45 mph were allowed in many places in the New Haven net...
General
| Property | New Haven class I-5Remove |
|---|---|
| Built | 1937 |
| Manufacturers | Baldwin |
| Wheel arrangement | 4-6-4 (Hudson) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | New Haven class I-5Remove |
|---|---|
| Length | 29.57 m |
| Wheelbase | 12.22 m |
| Rigid wheelbase | 4.27 m |
| Total wheelbase | 25.86 m |
| Service weight | 165.7 t |
| Adhesive weight | 87.5 t |
| Axle load | 29.2 t |
| Total weight | 316.3 t |
| Water capacity | 68,137 l |
| Fuel capacity | 14.5 t (coal) |
Boiler
| Property | New Haven class I-5Remove |
|---|---|
| Grate area | 7.17 m² |
| Firebox surface | 44.61 m² |
| Tube heating surface | 309.94 m² |
| Evaporative heating surface | 354.55 m² |
| Superheater surface | 96.84 m² |
| Total heating surface | 451.4 m² |
Power plant
| Property | New Haven class I-5Remove |
|---|---|
| Driver diameter | 2,032 mm |
| Boiler pressure | 19.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 559 x 762 mm |
Power
| Property | New Haven class I-5Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,356 kW (4,563 PS) |
| Starting effort | 196.2 kN |
Calculated values
| Property | New Haven class I-5Remove |
|---|---|
| Factor of adhesion | 1 : 4.38 |
| Optimal speed | 105 km/h |
| Power-to-weight ratio | 20.3 kW/t |
| Heating Surface Equivalent | 771.3 m² |
| Cylinder volume/HSE | 1 : 484.94 |
| Adhesive weight/Total | 1 : 1.89 |
| Tractive force/Heating surface | 1 : 9.08 |
| Grate area/Heating surface | 1 : 62.96 |
| Firebox/Tube surface | 1 : 6.95 |
| Total/Superheater | 1 : 3.66 |
