The Class 47 was developed along with a number of other classes during the British Transport Commission's drive to remove all steam locomotives from British Rail service by 1968. The Class 47 was built by Brush Traction between 1962 and 1968. 512 of them were built, which made them the most numerous class of British mainline diesel locomotive.
As of 2015, 82 of them still exist as Class 47s, with others having been converted to other classes. 30 Class 47s still operate mainline services.
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