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Verde Tunnel and Smelter Railroad No. 500 and 501
In 1920, ALCO-Schenectady built two 2-6-6-2 Mallets for the Verde Tunnel & Smelter Railroad. It operated a short network to carry copper ore to the smelters in Jerome and Clarkdale, Arizona. The locomotives carried th...
| Verde Tunnel and Smelter Railroad No. 500 and 501Remove | |
|---|---|
| Variant | Standard |
| Built | 1920 |
| Manufacturers | ALCO |
| Wheel arrangement | (1C)C1 ma |
| Gauge | 1435 mm |
| Length | |
| Service mass | 202756 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Built | 1920 |
| Manufacturers | ALCO |
| Wheel arrangement | 2-6-6-2 (Mallet Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Wheelbase | 6.30 m |
| Service mass | 202.8 t |
| Adhesion mass | 170.6 t |
| Rigid wheelbase | 14.88 m |
| Axle load | 28.4 t |
Boiler
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Grate area | 6.689 m² |
| Firebox surface | 33.445 m² |
| Tube heating surface | 422.431 m² |
| Evaporative heating surface | 455.876 m² |
| Superheater surface | 105.817 m² |
| Total heating surface | 561.7 m² |
Power plant
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Driver diameter | 1,448 mm |
| Boiler pressure | 15.2 bar |
| Expansion type | compound |
| Cylinders | four, HP: 597 x 813 mm and LP: 940 x 813 mm |
Power
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,685 kW (3,651 PS) |
| Starting effort | 367.5 kN |
| Starting effort simple | 441.0 kN |
Calculated values
| Property | Verde Tunnel and Smelter Railroad No. 500 and 501 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.55 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 13.2 kW/t |
| Heating Surface Equivalent | 834.7 m² |
| Cylinder volume/HSE | 1 : 1,220.41 |
| Adhesive weight/Total | 1 : 1.19 |
| Tractive force/Heating surface | 1 : 13.67 |
| Grate area/Heating surface | 1 : 83.97 |
| Firebox/Tube surface | 1 : 12.63 |
| Total/Superheater | 1 : 4.31 |
