Russian locomotive class A

Russian steam locomotives

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Ab 132, which had been converted to a class B in 1912.

Type and origin
Power type	Steam
Builder	Kolomna Locomotive Works Hanomag Henschel & Son Sormovo Works Voroshilovgrad Locomotive Works Kharkov Locomotive Factory
Build date	1892, 1894-1907
Total produced	533

Specifications
Configuration:
• Whyte	4-6-0
Gauge	1,524 mm (5 ft)
Leading dia.	1,030 mm (3 ft 5 in)
Driver dia.	1,830 mm (6 ft 0 in)
Length	10.437 m (34 ft 2.9 in)
Axle load	13.8–14 t (13.6–13.8 long tons; 15.2–15.4 short tons)
Empty weight	58 t (57 long tons; 64 short tons)
Service weight	60.3 t (59.3 long tons; 66.5 short tons) 63.5 t (62.5 long tons; 70.0 short tons)
Firebox:
• Grate area	1.85 m² (2,870 sq in)
Cylinders	Two, outside
Cylinder size	500 mm × 710 mm (20 in × 28 in) or 500 mm × 730 mm (20 in × 29 in)

Performance figures
Maximum speed	115 km/h (71 mph)

Career
Operators	Russian Imperial Railways Soviet Railways

The Russian locomotive class A was a series of Russian steam locomotives from the early 20th century, among the most powerful produced in the country at that time, with a top speed of 115 kilometers per hour.^[1]

One example, shown here, was the Ab type, with a Schmidt superheater, with the number between the couplers indicates Ab 132, produced at the Briansk locomotive factory in 1909.^[1]