| USRA Light Santa Fe | |
|---|---|
| Power type | Steam |
| Builder | American Locomotive Company, Baldwin Locomotive Works |
| AAR wheel arr. | 2-10-2 |
| UIC classification | 1′E1′ h2 |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter |
33 in (838 mm) |
| Driver diameter | 57 in (1,448 mm) |
| Trailing wheel diameter |
43 in (1,092 mm) |
| Wheelbase | 40 ft 4 in (12.29 m) |
| Length | 52 ft 10 in (16.10 m) without tender |
| Width | 10 ft 8 in (3.25 m) |
| Height | 15 ft 0 in (4.57 m) |
| Weight on drivers | 274,000 lb (124.3 tonnes) |
| Locomotive weight | 352,000 lb (159.7 tonnes) |
| Locomotive & tender combined weight |
540,300 lb (245.1 tonnes) |
| Fuel type | Soft coal (bituminous) |
| Boiler pressure | 200 lbf/in² (1.38 MPa) |
| Firegrate area | 76.3 sq ft (7.09 m2) |
| Heating surface: Tubes |
2,970 sq ft (275.9 m2) |
| Heating surface: Flues |
1,323 sq ft (122.9 m2) |
| Heating surface: Firebox |
373 sq ft (34.7 m2) |
| Heating surface: Total |
4,666 sq ft (433.5 m2) |
| Superheater area | 1,085 sq ft (100.8 m2) |
| Cylinders | Two |
| Cylinder size | 27 × 32 in (686 × 813 mm) |
| Valve gear | Southern (see drawing) |
| Tractive effort | 69,400 lbf (308.7 kN) |
| Factor of adhesion |
3.95 |
The USRA Light Santa Fe was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. These locomotives were of 2-10-2 wheel arrangement in the Whyte notation, or 1′E1′ in UIC classification; this arrangement was commonly named "Santa Fe" in the United States. At the time, the Santa Fe was the largest non-articulated type in common use, primarily in slow drag freight duty in ore or coal service.
A total of 94 of these locomotives were constructed under the auspices of the USRA. They went to the following railroads:
| Railroad | Quantity | Class | Road numbers | Notes |
|---|---|---|---|---|
| Ann Arbor Railroad |
|
|
|
Renumbered 2550–2553, reclassified L2, Sold to Kansas City Southern Railway #220–223, September 1942.[2]KCS class L-1[3] |
| Chicago and Western Indiana Railroad |
|
|||
| Duluth, Missabe and Northern Railroad |
|
|
|
to Duluth, Missabe and Iron Range Railroad (same numbers)[4] |
| New York Central Railroad subsidiary Boston and Albany Railroad |
|
|
|
Sold to Canadian National Railway #4200–4209 class T-3-a in 1928.[5] |
| Seaboard Air Line Railroad |
|
|
|
renumbered 2485–2499[6] |
| Southern Railway |
|
|
|
[7] |
| Total | 94 |
Only one USRA Light 2-10-2 survives: DM&IR 506 is on display at the National Railroad Museum in Green Bay, Wisconsin
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