‘The Duchess’ On Preston Dock

This locomotive entered service during July 1932 and was fitted with the same equipment that went into the three heavyweight railcars – a 250hp 6LV22 engine & GEC electrical equipment, the locomotive did not immediately have a buyer, and spent much of 1932-1933 working several LNER goods yards in the Newcastle area. Initial service was in the Forth marshalling yard, spending most of its time there apart from a short stint at Blaydon. Loads at the Forth Yard were up to forty wagons totalling 600 tons, whilst the Blaydon Yard with its gradients permitted a maximum load of 750 tons. After a month at Blaydon it moved to Heaton Yard. Here it was challenged by taking 800 ton loads up the 1 in 150 Benton Bank. Fuel consumption with this type of working was about 2.5 gallons per hour. This locomotive also spent a brief period under trial on the Southern Region. This machine would soon be bought by the Preston Corporation for use in the Ribble Docks. Its works number was D8, it later gained the name ‘Duchess’ and was still in operation during 1960, and was noted withdrawn as late as the winter of 1968.
A second machine similar to D8 was built during 1933, to be tested along with a number of other shunters by the LMSR authorities. This machine carried the numbers 7408 & 7058 on the LMSR and was allocated the British Railways number 13000 in the post nationalisation re-numbering scheme, although it was broken up prior to carrying this number.
Allocated Works number D20 of 1933 it was fitted with a Armstrong Sulzer 6LV22 diesel engine, powering a Laurence Scott & Electromotors generator and single traction motor. With the engine rated at 250hp @ 775rpm with a maximum tractive effort of 24,000lb and a maximum speed of 30mph, this shunting locomotive clearly had the best characteristics that the LMSR was seeking when compared to the other locomotives tested. Most significant were its electric transmission, its heavier weight and a fuel capacity that would allow a week of shunting prior to refuelling.