Delaware & Hudson No 1400, 1401 and 1402
Between 1924 and 1930, the Delaware & Hudson had three high-pressure locomotives with a 2-8-0 wheel arrangement built by ALCO-Schenectady. What they all had in common was the Mühlfeld boiler, which had a large water tube firebox. At the front there were two large drums that lay on top of the boiler barrel. All three locomotives were two-cylinder compounds with a two-axle booster on the tender.
The first was number 1400 named “Horatio Allen”, built in 1924. It had a boiler pressure of 350 psi (24.1 bars). In 1927, No. 1401 “John B. Jervis” was built, which had a boiler pressure of 400 psi (27.6 bars) and smaller cylinders. The boiler was later fully enclosed. In 1930 the No. 1402 “James Archibald” finally followed with a significantly increased boiler pressure of 500 psi (34.5 bar). Its boiler was also fully enclosed.
Since the significantly more complicated maintenance was not worth it in any way compared to the gain in efficiency, all of them were retired by 1935. In 1933, the D&H had No. 1402 “L.F. Loree” built as its fourth high-pressure locomotive with a 4-8-0 wheel arrangement, which suffered the same fate.
Technical data
General
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Built | 1924 | 1927 | 1930 |
| Manufacturers | ALCO | ||
| Wheel arrangement | 2-8-0 (Consolidation) | ||
| Gauge | 1,435 mm (Standard gauge) | ||
Dimensions and weights
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Wheelbase | 8.84 m | ||
| Service mass | 157.5 t | 153 t | 161 t |
| Adhesion mass | 135 t | 134.2 t | 136 t |
| Total mass | 247.6 t | 291 t | 286 t |
| Rigid wheelbase | 5.49 m | ||
| Axle load | 33.8 t | 33.6 t | 34 t |
| Water capacity | 34,069 l | 60,567 l | 52,996 l |
| Fuel capacity | 15 t (coal) | 19.5 t (coal) | 15.9 t (coal) |
Boiler
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Grate area | 6.643 m² | 7.618 m² | |
| Firebox surface | 110.369 m² | 112.691 m² | 104.237 m² |
| Tube heating surface | 186.828 m² | 181.811 m² | 215.814 m² |
| Evaporative heating surface | 297.197 m² | 294.503 m² | 320.051 m² |
| Superheater surface | 53.512 m² | 65.032 m² | 96.991 m² |
| Total heating surface | 350.7 m² | 359.5 m² | 417.0 m² |
Power plant
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Driver diameter | 1,448 mm | 1,600 mm | |
| Boiler pressure | 24.1 bar | 27.6 bar | 34.5 bar |
| Expansion type | compound | ||
| Cylinders | two, HP: 597 x 762 mm and LP: 1,041 x 762 mm | two, HP: 565 x 762 mm and LP: 975 x 762 mm | two, HP: 521 x 813 mm and LP: 1,003 x 813 mm |
Power
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Power source | steam | ||
| Indicated power | 2,655 kW | 2,565 kW | |
| Starting effort | 289.5 kN | 295.0 kN | 317.9 kN |
| Starting effort simple | 347.4 kN | 354.0 kN | 381.5 kN |
| Estimated power | 3,356 kW | ||
Calculated values
| Property | 1400 | 1401 | 1402 |
|---|---|---|---|
| Factor of adhesion | 1 : 4.57 | 1 : 4.46 | 1 : 4.20 |
| Optimal speed | 56 km/h | 53 km/h | 64 km/h |
| Power-to-weight ratio | 16.9 kW/t | 16.8 kW/t | 20.8 kW/t |
| Heating Surface Equivalent | 956.1 m² | 988.0 m² | 1,035.2 m² |
| Cylinder volume/HSE | 1 : 562.47 | 1 : 481.38 | 1 : 477.56 |
| Adhesive weight/Total | 1 : 1.17 | 1 : 1.14 | 1 : 1.18 |
| Tractive force/Heating surface | 1 : 17.24 | 1 : 17.13 | 1 : 15.92 |
| Grate area/Heating surface | 1 : 52.79 | 1 : 47.20 | 1 : 54.74 |
| Firebox/Tube surface | 1 : 1.69 | 1 : 1.61 | 1 : 2.07 |
| Total/Superheater | 1 : 5.55 | 1 : 4.53 | 1 : 3.30 |