London Transport Sentinel 0-6-0 shunter D.L.83
Photographed on 5 February 2009 at Wansford, the Nene Valley Railway.
Three Rolls-Royce engined-diesel locomotives, built in 1967-68, were acquired by London Underground in 1971, and numbered DL81-DL83.
All 3 locomotives were standard 0-6-0DH Sentinel diesel shunters obtained from Thomas Hill (Rotherham) Ltd (the Rolls Royce/Sentinel dealer). They were painted dark green and operated at Neasden and Lillie Bridge depots where they replaced the last of the ex-GWR pannier tank steam engines.
These locomotives were permanently coupled to barrier wagons (made from old bogies) so that they were long enough to properly operate the signalling system, but were not allowed to run on the main lines and did not have 'Trip Cock' brake valves.
Both the free end (front) of the locomotive and the barrier wagon were fitted with 'Ward' type couplers as well as normal buffers and couplings to allow them to couple to almost any Departmental rolling stock (at the time).
Two locomotive have been preserved; no. DL82 on the Mid-Norfolk Railway and no. DL83 (this one) on the Nene Valley Railway. The third locomotive, no. DL81, was sold for further use with an industrial user.
Picture added on 22 February 2009