GWR 2-6-2T - 5100 and 5101 Classes

5100 and 5101 Classes

In 1927 the original 40 were renumbered 5100 and 5111 to 5149; the following additions to the class filled in the numbers 5101 to 5110 and extended the class to 5189. These locos were known as the GWR 5101 Class but were really little changed from the first batch, having an increased axle loading of 17 tons 12 cwt (39,400 lb or 17.9 t); the maximum permitted for the ‘Blue’ route availability. Bunkers were of the standard Collett design with greater coal capacity.

Additions to the 5100 class were made until available numbers were exhausted, and 40 engines were then built in the 4100 series.