British Rail Class 70 (electric) - British Railways No. 20003

British Railways No. 20003

After nationalisation in 1948, British Railways renumbered them 20001 and 20002 respectively. the third member of the class, 20003 from new, was built at Brighton. S. B. Warder (later to become Chief Electrical Engineer of the British Transport Commission and architect of the UK 25 kV AC overhead system still in use today) was by then SR Electrical Engineer and he modified the design somewhat. Although counted as the same class, 20003 was markedly different externally to its two earlier sisters, being 2 inches (5 cm) longer with flat 4SUB-like cab ends, arguably simpler (and therefore cheaper) design than the earlier two. Equipment changes added 5 tons to the earlier 100-ton design.

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