| Southern Railway 722 |
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| Specifications |
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Configuration:
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| • Whyte | 2-8-0 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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| Driver dia. | 56 in (1.422 m) |
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| Loco weight | 214,000 lb (97,000 kg) |
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| Fuel type |
- New: Coal
- Now: Oil (Post-current restoration)
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| Fuel capacity | 16 t (16 long tons; 18 short tons) |
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| Water cap. | 7,500 US gal (28,000 L; 6,200 imp gal) |
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| Boiler pressure | 190 psi (1.31 MPa) |
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| Cylinders | Two, outside |
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| Cylinder size | 24 in × 30 in (610 mm × 762 mm) |
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| Valve gear | Southern (formerly Stephenson) |
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| Career |
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| Operators | |
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| Class | Ks-1 |
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| Numbers | |
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| Retired |
- August 1952 (1st revenue service)
- December 8, 1967 (2nd revenue service)
- November 1985 (1st excursion servce)
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| Restored |
- November 1952 (1st revenue service)
- August 1970 (1st excursion service)
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| Current owner | Great Smoky Mountains Railroad |
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| Disposition | Undergoing restoration to operating condition |
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| Reference: |
Southern Railway 722 is a Ks-1 class 2-8-0 "Consolidation" type steam locomotive, built in September 1904 by the Baldwin Locomotive Works (BLW) to run on the Murphy Branch, where it hauled freight trains between Asheville and Murphy, North Carolina for the Southern Railway (SOU). In 1952, it was purchased by the East Tennessee and Western North Carolina Railroad (ET&WNC), alongside its sister locomotive No. 630, where they were served as switchers around Johnson City and Elizabethton, Tennessee.
In 1967, Nos. 722 and 630 were both traded back to the SOU for use in their steam excursion program until 1980, when they were sent to the Tennessee Valley Railroad Museum (TVRM) in Chattanooga, Tennessee to make way for larger steam locomotives haul the longer and heavier excursion trains. Taken out of service in late 1985, No. 722 was purchased by the Great Smoky Mountains Railroad (GSMR) in late 2000 to be restored back to operating condition. The restoration work was halted around 2005 due to circumstances but continued in 2023, anticipated to be completed around 2026.