| Norfolk and Western 1240 |
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| Type and origin |
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| Power type | Steam |
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| Builder | N&W's Roanoke Shops (East End Shops) |
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| Serial number | 385 |
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| Build date | May 1950 |
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| Specifications |
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Configuration:
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| • Whyte | 2-6-6-4 |
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| Driver | 70 in (1,778 mm) |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
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| Leading dia. | 33 in (838 mm) |
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| Driver dia. | 70 in (1.778 m) |
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| Trailing dia. | 42 in (1.067 m) |
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| Axle load | 72,000 lb (33 t) |
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| Adhesive weight | 432,350 lb (196.11 t) |
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| Loco weight | 573,000 lb (260 t) |
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| Tender weight | 378,600 lb (171.7 t) |
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| Total weight | 951,600 lb (431.6 t) |
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| Fuel type | Coal |
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| Fuel capacity | 30 short tons (60,000 lb) |
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| Water cap. | 22,000 US gal (83,000 L) |
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| Fuel consumption | 7 t (6.9 long tons; 7.7 short tons) of coal per hour 13,906 US gal (52,640 L; 11,579 imp gal) of water per hour |
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| Firebox: | |
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| • Grate area | 122 sq ft (11.3 m2) |
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| Boiler | 106 in (2,692 mm) |
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| Boiler pressure | 300 lbf/in2 (2.07 MPa) |
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| Heating surface: | |
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| • Firebox | 587 sq ft (54.5 m2) |
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| • Tubes and flues | 6,052 sq ft (562.2 m2) |
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Superheater:
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| • Type | Type E |
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| • Heating area | 2,703 sq ft (251.1 m2) |
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| Cylinders | Four, simple articulated |
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| Cylinder size | 24 in × 30 in (610 mm × 760 mm) |
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| Valve gear | Baker |
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| Valve type | Piston valves |
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| Reference: |
Norfolk and Western 1240 was a four-cylinder simple articulated 2-6-6-4 type steam locomotive, built in May 1950 by the Norfolk and Western's (N&W) East End Shops in Roanoke, Virginia as part of the N&W's class "A" fleet of fast freight locomotives.