0-6-2T Class N7 GER Profile and Models

69621 at Dereham on the Mid Norfolk Railway in April 2009. ©DiverScout

The LNER Class N7 (GER Class L77), is a class of 0-6-2T steam locomotives. They were designed by Alfred John Hill of the Great Eastern Railway and introduced in 1915. The design was perpetuated by Nigel Gresley of the LNER after the 1923 grouping. 134 were built; only one of them is preserved. The N7s had superheaters and piston valves. They were unusual (for inside-cylinder locomotives) in having Walschaerts valve gear. They were, as London suburban locomotives, fitted with Westinghouse air brakes. Some were fitted with condensing apparatus for working on the Metropolitan line and the East London Line but the condensing apparatus was removed between 1935 and 1938.

(Information provided by Wikipedia)

Type of Locomotive	Steam
Builder	Stratford Works Gorton Works Robert Stephenson & Co. William Beardmore & Co. Doncaster Works
Build Date	1915 - 1928
Total Built	134
Tractive Effort	20,512 lbf
Wheel Configuration	0-6-2T
Operated By	Great Eastern Railway London & North Eastern Railway British Railways
Main Duties	Suburban Passenger Services
In Service Until	1962
Surviving Examples	1