The GER Class T77 was a class of twenty-five 0-6-0 steam locomotives designed by A. J. Hill for the Great Eastern Railway. They all passed to the London and North Eastern Railway at the 1923 grouping and received the classification J19.
History These locomotives were a development of the GER Class E72, and shared the same cylinders, wheels, and Belpaire firebox-fitted boiler. Changes included vacuum brakes from new, and the abandonment of cylinder tail rods.
+ Table of orders and numbers Year Order Manufacturer Quantity GER Nos. LNER Nos. 1946 Nos. Notes 1916–17 T77 Stratford Works 10 1140–1149 8140–8149 4650–4659 1917–18 H80 Stratford Works 5 1260–1264 8260–8264 4660–4664 1918–19 X80 Stratford Works 5 1265–1269 8265–8269 4665–4669 1920 A81 Stratford Works 5 1250–1254 8250–8254 4670–4674
All were still in service at the 1923 grouping, the LNER adding 7000 to the numbers of nearly all the ex-Great Eastern locomotives, including the Class T77 locomotives. Between 1934 and 1939 all were rebuilt with round-top fireboxes, and the cylinder bore was reduced to . The rebuilt locomotives were reclassified J19/2, while the yet-to-be rebuilt locomotives reclassified J19/1. The J19/2 classification also included the rebuilt former Class E72 locomotives.
At nationalisation in 1948, British Railways added 60000 to their LNER numbers. They all continued in service until 1959, when the first was withdrawn; all were gone by the end of 1962.
+ Table of withdrawals Year Quantity inservice atstart of year Quantitywithdrawn Locomotive numbers Notes 1959 25 8 64651/58/61–62/65/68/70/72 1960 17 6 64650/54/56/59–60/63 1961 11 7 64652–53/55/66–67/69/74 1962 4 4 64657/64/71/73
References
External links
– Great Eastern Railway Society The Hill J18 & J19 (GER Classes E72 & T77) 0-6-0 Locomotives – LNER Encyclopedia