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A 2-10-2 Heavy Santa Fe.

USRA Heavy Santa Fe 2-10-2 Steam Locomotive
The USRA Heavy 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 175 of these locomotives were constructed under the auspices of the USRA. They went to the following railroads:

Original USRA Allocation List

Quantity:  Class:  Road numbers:  Notes: 

Bessemer and Lake Erie Railroad
Quantity: 5
Class: D2A
Road numbers: 521–525

Chicago, Burlington and Quincy Railroad
Quantity: 10
Class: M-3
Road numbers: 6200–6209
Notes: At times leased to the Colorado and Southern Railway.

Erie Railroad
Quantity: 25
Class: R-3
Road numbers: 4200–4224

Colorado and Southern Railway
Quantity: 5
Class: E-5B
Road numbers: 905–909

Pennsylvania Railroad
Quantity: 130
Class: N2s
Random between
Road numbers: 7036 and 9859

Total: 175

The Pennsylvania Railroad locomotives were later refitted with the Pennsy's trademark Belpaire fireboxes. None of the originals built under USRA auspices or any of the subsequent copies were preserved.

USRA Heavy Santa Fe
Type and origin
Power type: Steam
Builder: American Locomotive Company, Baldwin Locomotive Works
Specifications
Configuration: 2-10-2
UIC class: 1′E1′ h2
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Leading diameter: 33 in (838 mm)
Driver diameter: 63 in (1,600 mm)
Trailing diameter: 43 in (1,092 mm)
Wheelbase: 42 ft 2 in (12.85 m)
Length: 55 ft 4 in (16.87 m) without tender
Width: 10 ft 8 in (3.25 m)
Height: 15 ft 9 in (4.80 m)
Adhesive weight: 293,000 lb (133,000 kilograms; 133 metric tons)
Loco weight: 380,000 lb (170,000 kilograms; 170 metric tons)
Total weight: 586,000 lb (266,000 kilograms; 266 metric tons)
Fuel type: Soft coal (bituminous)
Firebox:
 • Firegrate area: 82.2 sq ft (7.64 m2)
Boiler pressure: 190 lbf/in2 (1.31 MPa)
Heating surface: 5,156 sq ft (479.0 m2)
 • Tubes: 3,258 sq ft (302.7 m2)
 • Flues: 1,469 sq ft (136.5 m2)
 • Firebox: 429 sq ft (39.9 m2)
Superheater:
​ • Heating area: 1,230 sq ft (114.3 m2)
Cylinders: Two
Cylinder: size 30 in × 32 in (762 mm × 813 mm)
Valve gear: Southern (see drawing)
Performance figures
Tractive effort: 74,000 lbf (329.2 kN)
Factor of adhesion: 3.96

See also:

USRA Light Santa Fe

USRA

A 2-10-2 Heavy Santa Fe.

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