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Locomotive-Specs
NS A – photo 1© trainspo.com
Steam locomotive

NS A

Built by NW

Top speed
70 km/h
43 mph
Track gauge
1,435 mm
Standard gauge
Years built
1943
43 units
Axle arrangement
2-6-6-4

Overview of the NS A

Discover the powerful Norfolk and Western Railway Class A, a formidable 2-6-6-4 steam locomotive built in 1943. This iconic engine, designed and constructed by the Norfolk and Western Railway, embodies a significant era in American railroading and freight transportation.

The Class A's distinctive 2-6-6-4 wheel arrangement was engineered to handle substantial loads and traverse long distances, making it an indispensable asset for the railway company's operations. Its robust design and impressive capabilities cemented its place in railway history.

Undergoing refurbishment by Norfolk Southern between 1985 and 1987, this steam locomotive continues to showcase its operational prowess. With a top speed of 70 km/h and a tractive effort of 507 kN, the Class A is a testament to its capacity for moving heavy freight efficiently.

Featuring standard gauge track compatibility (1435 mm) and an axle load of 32.7 tons, the Class A exemplifies sophisticated engineering. This locomotive stands as a remarkable piece of American railway heritage and engineering ingenuity.

NS A technical specifications

Value
Built byNW · 194343 units
RefurbishedNS 1985 - 1987
Top speed70 km/h43 mph
Tractive effort507 kN113,978 lbf
Track gauge1,435 mmStandard gauge4 ft 8½ in
Whyte notation2-6-6-4
Axle load32.7 t72,091 lb

Operators of the NS A

Railway companies that have operated the A, with the class designation used by each of them.

OperatorClassCountry
Norfolk and Western RailwayNW AUnited States

NS A photos

Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.

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