Pennsylvania Railroad no. 1320
 | This article relies largely or entirely on a single source. (October 2016) |
| Pennsylvania Railroad no. 1320 | |
|---|---|
Beyer, Peacock & Company | |
| Build date | 1889 |
| Total produced | 1 |
| Specifications | |
|---|---|
| Configuration: | |
| • Whyte | 2-2-2-0 |
| • UIC | 1AA n3v |
| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
| Leading dia. | 3 ft 6 in (1.067 m) + tyres |
| Driver dia. | 6 ft 0 in (1.829 m) + tyres |
| Wheelbase: | |
| • Engine | 18 ft 1 in (5.51 m) |
| • Leading | 8 ft 5 in (2.57 m) |
| • Drivers | 9 ft 8 in (2.95 m) |
| Loco weight | 43 long tons (44 t) |
| Boiler: | |
| • Diameter | 4 ft 2 in (1.27 m) |
| • Tube plates | 11 ft 0 in (3.35 m) |
| Boiler pressure | 175 lbf/in2 (1.21 MPa) |
| Heating surface | 1,401.5 sq ft (130.20 m2) |
| Cylinders | Three: two HP (outside), one LP (inside) |
| High-pressure cylinder | 14 in × 24 in (356 mm × 610 mm) |
| Low-pressure cylinder | 30 in × 24 in (762 mm × 610 mm) |
| Valve gear | Joy |
| Career | |
|---|---|
| Operators | Pennsylvania Railroad |
| Numbers | 1320 |
| Official name | Pennsylvania |
| Delivered | 1889 |
| Scrapped | 1897 |
| Disposition | Scrapped |
The Pennsylvania Railroad no. 1320 was a single experimental passenger three-cylinder
Design
The design featured a boiler pressed to 175 lbf/in2 (1.21 MPa) delivering saturated steam to two outside 14-inch (356 mm) high-pressure cylinders, which exhausted to one 30-inch (762 mm) low-pressure cylinder inside the frames. All three cylinders had a stroke of 24 inches (610 mm); the high-pressure cylinders drove the rear wheels, while the low-pressure drove the leading driving wheels. As the two pairs of driving wheels were not connected, the locomotives were "duplex drive" or "double-singles".[2]
The locomotive performed poorly for the Pennsylvania, being slow and weak compared to the road's other, domestically purchased locomotives, as well as unsuited to the rougher trackage common of U.S. railroads. The unique design of the cylinders made the locomotive difficult to operate and maintain, making it unpopular among the road's engineers and management staff. The locomotive was scrapped in 1897.
Notes
- Oswald Nock, et al. Railways at the Turn of the Century, 1895-1905. Blandford P., 1969.
- ^ Baxter 1979, pp. 194–195.
References
- Baxter, Bertram (1979). Baxter, David (ed.). British Locomotive Catalogue 1825–1923, Volume 2B: London and North Western Railway and its constituent companies. Ashbourne, Derbyshire: Moorland Publishing Company. ISBN 0-903485-84-2.
External links