The GER Class T18 was a class of fifty 0-6-0 T steam locomotives designed by James Holden for the Great Eastern Railway. They passed to the London and North Eastern Railway at the grouping in 1923 and received the LNER classification J66.

The GER operated the world’s most intensive steam operated suburban passenger service out of Liverpool Street Station and these locomotives performed very reliably on them. Both passenger and shunting locomotives could also be found at Colchester, Ipswich, Cambridge, King’s Lynn, and Peterborough East.

T18 Class (LNER J-66) Built 1886-88, these were the original James Holden design for shunting and trip goods work. They were produced to answer an urgent need for locomotives of this type upon the opening of the Great Northern & Great Eastern Joint Line, and the sudden increase in coal and mineral traffic.

James Holden’s first new locomotive design was for the T18 class 0-6-0 tank engines for shunting work in 1886. These were urgently required because of the opening of the GN&GE Joint Line and the attendant increase in coal traffic handled by the GER.

By the mid-1880s these engines were clearly insufficient to handle the rapid development in freight traffic. Hence Holden's first locomotive design for the GER was the Class T18 0-6-0T shunter (LNER Class J66). The first was built in May 1886, and by 1886 a total of fifty had been built in five batches.

The T18 class 0-6-0 tank engines were built from 1886-1888. The T18s were a simple design with 16 x 24-in. cylinders and 4-ft. 0-ins. diameter driving wheels. The boilers were derived from that used on Adams' K9 class 0-4-2Ts.

The GER Class T18 was a class of 0 6 0 steam tank locomotives designed by James Holden for the Great Eastern Railway. They passed to the London and North Eastern Railway at the grouping in 1923 and received the LNER classification J66.…

2017年11月22日 · Die 50 Dampflokomotiven der T18 Class der Great Eastern Railway (GER) mit der Achsfolge 0-6-0T wurden von James Holden entworfen und von 1886 und 1888 gebaut. Die Lokomotiven bekamen nach dem Grouping 1923 bei der London and North Eeastern Railway die Bezeichnung LNER J66 Class.

See also Steamindex's compilation of information on the GER -- [], last accessed 11 June 2006. Spinning out variations on the T18 design, James Holden introduced this R class which differed only in the longer wheelbase under a shorter frame. Also, 100 of the 140 had screw-reversing gear and Westinghouse air brakes for passenger service.