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Ulster & Delaware class 30
As this railroad was mainly built to haul heavy tourist trains into the Catskill Mountains, it needed powerful passenger locomotives. In 1906 and 1907, ALCO-Schenectady built two batches of six Ten-wheelers each which...
General
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Built | 1923-1924 |
| Manufacturers | U&D |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Length | 18.52 m |
| Wheelbase | 7.54 m |
| Rigid wheelbase | 4.27 m |
| Total wheelbase | 15.98 m |
| Service weight | 74.4 t |
| Adhesive weight | 56.7 t |
| Total weight | 123.2 t |
| Water capacity | 18,927 l |
| Fuel capacity | 9.1 t (coal) |
Boiler
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Grate area | 4.041 m² |
| Firebox surface | 13.843 m² |
| Tube heating surface | 175.68 m² |
| Evaporative heating surface | 189.522 m² |
| Superheater surface | 35.954 m² |
| Total heating surface | 225.5 m² |
Power plant
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 660 mm |
Power
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Power source | steam |
| Estimated power | 1,007 kW (1,369 PS) |
| Starting effort | 137.6 kN |
Calculated values
| Property | Ulster & Delaware class 30 superheated |
|---|---|
| Factor of adhesion | 1 : 4.04 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 13.5 kW/t |
| Heating Surface Equivalent | 330.6 m² |
| Cylinder volume/HSE | 1 : 892.63 |
| Adhesive weight/Total | 1 : 1.31 |
| Tractive force/Heating surface | 1 : 12.75 |
| Grate area/Heating surface | 1 : 55.80 |
| Firebox/Tube surface | 1 : 12.69 |
| Total/Superheater | 1 : 5.27 |
