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TUNNEL CLEANING TRAIN
The Tunnel Cleaning Train is a unique set and is effectively a series of two motor cars which draw three trailer cars that act as a huge vacuum cleaner.
The cars are numbered TCC1 to TCC5, the first and last being the Driving Motor Cars which were converted from 1938 Tube Stock Units, TCC1 being ex-10226 and TCC5 being ex-10087. They are also equipped with Automatic Train Protection (ATP) equipment which enables them to operate on the Central Line.
TCC3 and TCC4 are Dust Extractor Cars and TCC3 is a Heavy Refuse Car; these three were built between 1972 and 1977 at Acton Works.
By the nature of its work it's very much a creature of the night and is rarely seen in daylight. I'm told (though have never experienced it) that if you operate the first train in a morning after its passed through the tunnel, the residual dust left behind hanging in the air is quite dense!
These photos are even more interesting in that when taken the train was 'broken down' into its individual cars for maintenance and overhaul.
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