LNER Class Y11 was a class of petrol powered 0-4-0 locomotives built by Motor Rail & Tram Car Company Limited under their `` Simplex '' brand and introduced in the years 1919 -- 1925 , operating after its formation in 1922 on the London and North Eastern Railway ( LNER ) .
LNER Class Y11 was a class of petrol powered 0-4-0 locomotives built by Motor Rail & Tram Car Company Limited under their `` Simplex '' brand and introduced in the years 1919 -- 1925 for the London and North Eastern Railway ( LNER ) .