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Illinois Central class 1701
The first Mikado ordered by the Illinois Central from Lima was the class 1701. Lima manufactured part in 1915 and 1916, with the remainder being supplied by Lima and Baldwin in 1918 and 1919. They were largely similar...
General
| Property | Illinois Central class 1701 as built |
|---|---|
| Built | 1915-1919 |
| Manufacturers | Lima, Baldwin |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Illinois Central class 1701 as built |
|---|---|
| Wheelbase | 10.72 m |
| Rigid wheelbase | 5.03 m |
| Total wheelbase | 20.00 m |
| Service weight | 128.2 t |
| Adhesive weight | 99 t |
| Axle load | 25.6 t |
| Total weight | 204.2 t |
| Water capacity | 34,069 l |
| Fuel capacity | 13.6 t (coal) |
Boiler
| Property | Illinois Central class 1701 as built |
|---|---|
| Grate area | 6.54 m² |
| Firebox surface | 24.768 m² |
| Tube heating surface | 356.321 m² |
| Evaporative heating surface | 381.089 m² |
| Superheater surface | 82.405 m² |
| Total heating surface | 463.5 m² |
Power plant
| Property | Illinois Central class 1701 as built |
|---|---|
| Driver diameter | 1,613 mm |
| Boiler pressure | 12.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 762 mm |
Power
| Property | Illinois Central class 1701 as built |
|---|---|
| Power source | steam |
| Estimated power | 2,125 kW (2,889 PS) |
| Starting effort | 240.9 kN |
Calculated values
| Property | Illinois Central class 1701 as built |
|---|---|
| Factor of adhesion | 1 : 4.03 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 16.6 kW/t |
| Heating Surface Equivalent | 669.7 m² |
| Cylinder volume/HSE | 1 : 840.55 |
| Adhesive weight/Total | 1 : 1.30 |
| Tractive force/Heating surface | 1 : 10.86 |
| Grate area/Heating surface | 1 : 70.87 |
| Firebox/Tube surface | 1 : 14.39 |
| Total/Superheater | 1 : 4.62 |
