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Nashville, Chattanooga & St. Louis class H7
The H7 was a class of 36 Consolidations built by Baldwin for the NC&StL between 1903 and 1907. Compared to the H6 introduced in 1902, they had a larger tube surface, but were identical in other dimensions. This includ...
| Nashville, Chattanooga & St. Louis class H7Remove | |
|---|---|
| Variant | H7B-37 |
| Built | 1907 |
| Manufacturers | Baldwin |
| Wheel arrangement | 1D |
| Gauge | 1435 mm |
| Length | 19402 mm |
| Service mass | 75433 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Built | 1907 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Length | 19.40 m |
| Wheelbase | 7.21 m |
| Total wheelbase | 16.02 m |
| Empty mass | 70.9 t |
| Service mass | 75.4 t |
| Adhesion mass | 68.2 t |
| Total mass | 124.9 t |
| Rigid wheelbase | 4.67 m |
| Water capacity | 18,927 l |
| Fuel capacity | 9.5 t (coal) |
Boiler
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Grate area | 4.329 m² |
| Firebox surface | 15.991 m² |
| Tube heating surface | 184.1 m² |
| Evaporative heating surface | 200.091 m² |
| Total heating surface | 200.1 m² |
Power plant
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Driver diameter | 1,422 mm |
| Boiler pressure | 13.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 711 mm |
Power
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Power source | steam |
| Estimated power | 895 kW (1,217 PS) |
| Starting effort | 162.6 kN |
Calculated values
| Property | Nashville, Chattanooga & St. Louis class H7H7B-37 |
|---|---|
| Factor of adhesion | 1 : 4.11 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 11.9 kW/t |
| Heating Surface Equivalent | 280.0 m² |
| Cylinder volume/HSE | 1 : 1,134.98 |
| Adhesive weight/Total | 1 : 1.11 |
| Tractive force/Heating surface | 1 : 16.97 |
| Grate area/Heating surface | 1 : 46.22 |
| Firebox/Tube surface | 1 : 11.51 |
