The two engines, Nos. 629 and 630, which are included in the foregoing list, should really be considered as a separate type, as they were of smaller dimensions than the rest, the driving wheels being only 5-ft. i-in. in diameter, and the cylinders 16-in. by 22-in. They and the four engines built in 1881 had the closed type of splasher which subsequently replaced the perforated open pattern on all new classes of engine. It will be noticed that from 1878 these engines began to appropriate the numbers originally given to Mr. Sturrock’s earlier Metropolitan passenger engines, which at about that period, or earlier, underwent a course of rebuilding and were relegated to the “A” class, as will be seen almost directly.
629 Class (G5)
Some or all of the description has been edited from G.F.Bird's Locomotives of the Great Northern Railway
There are no preserved locomotives of this type.
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