Central RR of New Jersey classes I-5 and I-6s
United States 1903 10 produced
The ten class I-5 Consolidations were delivered by ALCO-Brooks in 1903. For burning anthracite culm they were given a Wootten firebox with an 82 square foot grate and Camelback design. In the 1920s, all were superheated, with one locomotive keeping the cylinder diameter of 20 inches and the remaining getting 21 inch diameter cylinders. The former were designated I-5s while the rest became I-6s. The tender capacity was increased by a ton by installing boards. The last four members of the class remained in service until 1947.
Technical data
General
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Built | 1903 | |
| Manufacturers | ALCO | |
| Wheel arrangement | 2-8-0 (Consolidation) | |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Wheelbase | 7.01 m | |
| Service mass | 94.3 t | 98.2 t |
| Adhesion mass | 84.4 t | 88.2 t |
| Total mass | 158.8 t | 162.5 t |
| Rigid wheelbase | 5.18 m | |
| Axle load | 21.1 t | 22.1 t |
| Water capacity | 26,498 l | |
| Fuel capacity | 11.8 t (coal) | 12.7 t (coal) |
Boiler
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Grate area | 7.618 m² | |
| Firebox surface | 18.581 m² | 18.06 m² |
| Tube heating surface | 276.108 m² | 186.884 m² |
| Evaporative heating surface | 294.689 m² | 204.944 m² |
| Total heating surface | 294.7 m² | 249.0 m² |
| Superheater surface | 44.036 m² | |
Power plant
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Driver diameter | 1,397 mm | |
| Boiler pressure | 13.8 bar | |
| Expansion type | simple expansion | |
| Cylinders | two, 508 x 813 mm | two, 533 x 813 mm |
Power
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Power source | steam | |
| Estimated power | 1,081 kW (1,470 PS) | 1,119 kW (1,521 PS) |
| Starting effort | 176.0 kN | 194.0 kN |
Calculated values
| Property | I-5 | rebuilt I-6s |
|---|---|---|
| Factor of adhesion | 1 : 4.70 | 1 : 4.46 |
| Optimal speed | 37 km/h | 35 km/h |
| Power-to-weight ratio | 11.5 kW/t | 11.4 kW/t |
| Heating Surface Equivalent | 387.6 m² | 383.3 m² |
| Cylinder volume/HSE | 1 : 850.07 | 1 : 947.66 |
| Adhesive weight/Total | 1 : 1.12 | 1 : 1.11 |
| Tractive force/Heating surface | 1 : 12.47 | 1 : 16.28 |
| Grate area/Heating surface | 1 : 38.68 | 1 : 32.68 |
| Firebox/Tube surface | 1 : 14.86 | 1 : 10.35 |
| Total/Superheater | 1 : 4.65 |
