LMS diesel shunter 1831

From TrainSpottingWorld, for Rail fans everywhere
An official photograph of No. 1831.

This was the original experimental shunter, nominally rebuilt by the Midland Railway's Derby Works from a 1377 Class 0-6-0T steam locomotive originally built in September 1892 by the Vulcan Foundry, whose number it inherited (1831), though very little of the steam locomotive was actually re-used. Of itself, it was not very successful, but it did provide useful data for the further development of the diesel shunter design. It was withdrawn from service in September 1939 and converted to a mobile power unit, emerging in its new guise as MPU3 in November 1940. It was scrapped in the 1950s, though sources disagree exactly when.

LMS 1831
Numbering 1831; later MPU3 in departmental stock
Wheel arrangement 0-6-0DH
Introduced Testing: December 1932; In stock: May 1934
Builder LMS, Derby Works
Engine Davey Paxman 6-cyl of 400 hp (298 kW)
at 750 rpm; later 300 hp (224 kW)
Transmission Haslam & Newton
Max. tractive effort 22400 lbf (100 kN); later 20000 lbf (89 kN)
Brakes Air locomotive brake; Vacuum train brake
Length 30 ft 3.75 in (9.2 m)
Width 8 ft 7.5 in (2.6 m)
Height 12 ft 9 in (3.9 m)
Weight 46 t 2 cwt (46.8 t)
Wheel diameter 4 ft 7 in
Wheelbase 15 ft 8 in
Maximum Speed 25 mph
Fuel capacity 140 imp gal (636 L)
Heating Supply None