Caledonian Railway 492 Class

Power typeSteam

Power typeSteam

DesignerJohn F. McIntosh

Builder

• CR St. Rollox Works

Caledonian Railway 492 Class
Type and origin Power type Steam Designer John F. McIntosh Builder CR St. Rollox Works Order number Y71 Build date 1903-1904 Total produced 6
Specifications Configuration: ​  • Whyte 0-8-0T Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Driver dia. 4 ft 6 in (1.37 m) Length: ​  • Over buffers 34 ft 3 in (10.44 m) Water cap. 1,500 imp gal (1,800 US gal; 6.8 kL) Boiler pressure 175 psi (12.1 bar) Cylinders Two, inside Cylinder size 19 in × 26 in (483 mm × 660 mm) Valve gear Stephenson Valve type Slide valves Loco brake Westinghouse air brake
Performance figures Tractive effort 22,813 lbf (101.48 kN)
Career Operators Caledonian Railway London, Midland and Scottish Railway Class CR: 492 Number in class 6 Numbers CR: 492-497 LMS: 16500-16505 LMS (1926): 16950-16955 Withdrawn 1932-1939 Disposition All scrapped
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The Caledonian Railway 492 Class were a class of six 0-8-0 tank engines that were built for the Caledonian Railway, in Scotland by St. Rollox Works from November 1903 to January 1904.

These engines were described as mineral engines with large cabs with doors fitted. The 2nd axle had flangeless wheels. All members survived into LMS ownership.