The Great Central Railway Class 11F or Improved Director Class is a class of 4-4-0 steam locomotive designed by John G. Robinson for passenger work. The LNER classified them as Class D11 in 1923. They were based on the earlier GCR Class 11E "Director" class (LNER D10).

The Robinson Class D11 (GCR Class 11F) 'Improved Director' 4-4-0 Locomotives Robinson 's D10 'Director (GCR Class 11E) locomotives quickly proved to be very successful, and a second batch was ordered in March 1916.

They were given the Great Central Railway (GCR) classification of 11F, and the LNER classification of D11. The first batch was delivered between 1919 and 1920. The most significant modification was the use of inside admission piston valves. …

The Great Central Railway Class 11F or Improved Director Class is a class of 4-4-0 steam locomotive designed by John G. Robinson for passenger work. The LNER classified them as Class D11 from 1923. They were based on the earlier GCR Class 11E "Director" class (LNER D10). There were two...

GCR Class 11F/LNER D11 4-4-0 'Improved Director' The Great Central Railway Class 11F or Improved Director Class is a class of 4-4-0 steam locomotive designed by John G. Robinson for passenger work. The LNER classified them as Class D11 from 1923.

LNER Class D11 ex-GCR Robinson 4-4-0 Steam Locomotive Diagram. Class D34 LNER 2493 "Glen Gloy", ex-9035. Originally a North British Railway 4-4-0 designed by Reid. The D34 class was introduced into traffic 1913.

Ex-Great Central Railway Robinson '11F' (LNER 'D11/1') class 4-4-0 No. 62669 'Ypres'. Built at Gorton in December 1922 as GCR No. 505 and withdrawn in August 1960. This fine Robinson class of 35 4-4-0s were built by the GCR and also after grouping for the LNER.

They were based on the earlier GCR Class 11E "Director" class (LNER D10). There were two subclasses: D11/1 were the original GCR engines and D11/2 were those built in 1924 by the LNER to a reduced loading gauge with smaller boiler …

Under the 1500 volt DC catenary at Altrincham in Cheshire is the double-headed combo of 62669 and 41235, seen in July 1954. Ex-Great Central Railway Robinson '11F' (LNER 'D11') class 4-4-0 No. 62669 'Ypres' (pilot). Built at Gorton in December 1922 as …

Robinson followed in 1913 with the larger Class 11E (LNER D10) "Director" Class 4-4-0 locomotive, which was used on GCR express trains from London Marylebone to Sheffield Victoria and Manchester London Road.