Invention and Engineering
The Caledonian Railway 812 and 652 Classes were 0-6-0 steam tender locomotives designed by John F. McIntosh, and introduced in 1899 for express-freight and mixed traffic on the Caledonian Railway. They had the same large boiler type as 721 “Dunalastair” Class 4-4-0s which operated at 160 psi, and were fitted with additional tubes, making it a prodigious raiser of steam. They could easily reach speeds of up to 55 mph (89 km/h).
Impulsoria.
Electronics industry.
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