The Caledonian Railway 812 and 652 Classes were 0-6-0 steam tender locomotives designed by John F. McIntosh for the Caledonian Railway and introduced in 1899. They had the same boiler type as the 721 “Dunalastair” Class 4-4-0s.

The CR (Caledonian Railways) 812 Class, is a class of 0-6-0 steam locomotive designed by John F McIntosh and introduced in 1899. It used the boiler from the 721 "Dunalastair" Class 4-4-0 steam locomotives which were also designed by John F McIntosh. The CR 812's worked as mixed traffic engines...

These tanks were developed to operate in the tight confines that defeated the larger 782 class locomotives. Compared to the latter's minimum curve radius of 99 yards, the 498s could handle 66 yards. The class grew slowly -- 2 in 1912, 6 more in 1915, 6 more in 1918, a quintet in 1920, and the final 4 in 1921.

Introduced in 1899, the Class 812 0-6-0 was an enlarged version of the famous Class 709 “Jumbo” which was first built in 1883 by Drummond and which continued to be built in batches until 1897.

2022年1月26日 · Couldn't resist getting hold of one of these Caledonian Railways Class 812s from Rails of Sheffield. A very early birthday present! Need some CR coaches now... and more storage space......more

The Caledonian Railway's class 812 comprised 79 0-6-0 freight locomotives, which McIntosh had developed as a successor to his “Jumbos”. They differed primarily in their larger boiler and longer wheelbase. The boiler was the same as that of the Class 721 “Dunalastair”.

Functional and workmanlike goods engines were very much a feature of the late Victorian railway scene, but few matched the beauty and level of performance of the Caledonian Railway’s ‘812’ 0-6-0s, a real maid of all work, as EVAN GREEN-HUGHES explains.

The Caledonian Railway 812 and 652 Classes were 0-6-0 steam tender locomotives designed by John F. McIntosh for the Caledonian Railway and introduced in 1899. They had the same boiler type as the 721 “Dunalastair” Class 4-4-0s. They could reach speeds of up to 55 mph (89 km/h).

The Caledonian Railway 812 and 652 Classes were 0-6-0 steam tenderocomotives designed by John F. McIntosh for the Caledonian Railway and introduced in 1899. They had the same boiler type as the 721 "Dunalastair" Class 4-4-0.

If you are modelling a member of the 812 class remove the centre spring completely. 4.2 Check that the flexichas bearings can easily slide up and down in the sub-hornblocks.