The Class 111 DMUs were based on Class 101/2s

British Rail Class 101

The British Rail Class 101 diesel multiple units were built by Metro-Cammell at Washwood Heath in Birmingham from 1956 to 1959, following construction of a series of prototype units. This class proved to be the most successful and longest-lived of all BR's First Generation DMUs, with the final five...

, but with different engines. The only external body difference was on the final batch of cars where a four character headcode box was fitted above the front cab windows, with the destination indicator on top of a reduced height centre window.

The first cars built, part of an order for 339 Met-Camm

Metro Cammell

The Metropolitan Cammell Carriage and Wagon Company was a Birmingham, England based manufacturer of railway carriages and wagons, based in Saltley and subsequently Washwood Heath....

 cars, were 4 power/trailer sets for the LMR

London Midland Region of British Railways

The London Midland Region was one of the six regions created on the formation of the nationalised British Railways and consisted of ex-London, Midland and Scottish Railway lines in England and Wales. The region was managed first from buildings adjacent to Euston Station and later from Stanier...

 Manchester

Manchester

Manchester is a city and metropolitan borough in Greater Manchester, England. According to the Office for National Statistics, the 2010 mid-year population estimate for Manchester was 498,800. Manchester lies within one of the UK's largest metropolitan areas, the metropolitan county of Greater...

 area built in early 1957. One of these was equipped with supercharged 230 hp 6-cylinder engines. This was followed by ten 3-car sets comprising DMBS/TSL/DMCL for the NER

Eastern Region of British Railways

The Eastern Region was a region of British Railways from 1948. The region ceased to be an operating unit in its own right in the 1980s and was wound up at the end of 1992...

 at Bradford

Bradford

Bradford lies at the heart of the City of Bradford, a metropolitan borough of West Yorkshire, in Northern England. It is situated in the foothills of the Pennines, west of Leeds, and northwest of Wakefield. Bradford became a municipal borough in 1847, and received its charter as a city in 1897...

, then a further twenty 3-car sets.

Vehicle numbers

Number	Order	Type	TOPS	Weight	Seats	Lot No.	Diagram	Formation	Year
M50134–50137	2d	DMBS	111/2	33 tons	52 second	30248	BR 520	P/Trailer	1957
E50270–50279	2xb	DMCL	111/1	33 tons	12 first 53 second	30268	BR 616	3-car	1957
E50280–50289	2xb	DMBS	111/2	33 tons	52 second	30338	BR 524	3-car	1957
E51541–51550	4c	DMBS	111/2	33 tons	52 second	30508	BR 615	2/3-car	1959/60
E51551–51560	4c	DMCL	111/1	33 tons	12 first 53 second	30509	BR 617	2/3-car	1959/60
M56090–56093	2d	DTCL	147	25 tons	12 first 53 second	30337	BR 628	P/Trailer	1957
E59100–59109	2xb	TSL	164	25 tons	71 second	30269	BR 623	3-car	1957
E59569–59572	4c	TSL	164	25 tons	71 second	30510	BR 623	3-car	1959/60
E59573–59578	4c	TSBL	165	25 tons	53 second	30615	BR 625	3-car	1960

Preservation

One car survives, buffet 59575 currently awaiting restoration after asbestos stripping at the Great Central Railway

Great Central Railway (preserved)

The Great Central Railway is a heritage railway split into two adjacent sections, one in Leicestershire and the other Nottinghamshire.The Leicestershire section is currently Britain's only double track mainline heritage railway, with of working double track, period signalling, locomotives and...

.