Union Railroad 0-10-2
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| Power type | Steam |
|---|---|
| Builder | Baldwin Locomotive Works |
| Build date | 1936–1939 |
| Total production | 10 |
| Configuration | 0-10-2 |
| UIC classification | E1' |
| Gauge | 4 ft 8½ in (1,435 mm) |
| Driver size | 61 in (1550 mm) |
| Locomotive weight | 644,510 lb (292.34 t) |
| Tender capacity | 12,000 US gal (45,000 L) water; 14 short tons (13 t) coal |
| Boiler pressure | 260 lbf/in² (1.8 MPa) |
| Cylinders | 2 |
| Cylinder size | 28 in bore × 32 in stroke (711.2 mm × 812.8 mm) |
| Valve gear | Walschaerts |
| Tractive effort | 90,900 lbf (locomotive) + 17,150 lbf (tender booster) (404.3 kN + 76.3 kN) |
| Career | Union Railroad, Duluth, Missabe and Iron Range |
| Number | URR 301-310; DM&IR 601-610 |
Ten Union Railroad 0-10-2 steam locomotives were built in 1936–1939 by the Baldwin Locomotive Works. These were the only 0-10-2 locomotives ever built in the United States and this purchase gave the name "Union" to this type.[1]
The Union Railroad was a switching and transfer line owned by U.S. Steel, serving a number of plants in the area and connecting with six trunk line railroads. Operation was only at low speed, thus a leading truck's stability was not required. The intent was to eliminate helper requirements on grades, and thus a locomotive larger than the Union's previous switchers and 2-8-0 "Consolidations" was needed. Ten driving wheels allowed the application of sufficient tractive effort within the axle load limits of the line, and the requirement for a large firebox and plentiful steam-raising ability necessitated the trailing truck. To increase tractive effort still further, a booster engine was fitted to the leading tender truck.
Upon dieselization of the Union in 1949, the locomotives were sold to fellow U.S. Steel railroad the Duluth, Missabe and Iron Range, where they served until 1962. One of these locomotives survives as a static exhibit at Greenville, Pennsylvania.[2]
[edit] References
- ^ Alexander, Edwin P. (1950). American Locomotives. Bonanza, 194–195.
- ^ Duluth, Missabe & Iron Range RR No. 604. SteamLocomotive.info. Retrieved on 2006-12-16.
