||This article relies largely or entirely upon a single source. (December 2014)
The Metropolitan Railway F class was a class of 0-6-2T side tank steam locomotive. They were based on the earlier E Class. Four locomotives, numbered 90 to 93 were built by Yorkshire Engine Company in 1901. They were later numbered L49 to L52.
The F Class were intended to work freight trains over the Metropolitan Railway mainline.
All remained with London Transport until withdrawn and scrapped between 1957 and 1962.