British Rail Class D16/1
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|LMS 10000 & 10001
(British Rail class D16/1)
10000 at Tring in 1950
|Builder||LMS Derby Works|
|Order number||LMS Lot number 198|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Wheel diameter||3 ft 6 in (1.067 m)|
|Wheelbase||51 ft 6 in (15.70 m)|
|Length||61 ft 2 in (18.64 m)|
|Locomotive weight||127.65 long tons (129.70 t; 142.97 short tons) later 130.65 long tons (132.75 t; 146.33 short tons)|
|Fuel capacity||900 imp gal (4,100 l; 1,100 US gal)|
|Prime mover||English Electric 16SVT Mark 1|
|Engine RPM range||750 (max)|
|Traction motors||EE 519/3B, 6 off|
|Top speed||93 mph (150 km/h)|
|Power output||1,600 hp (1,200 kW)|
|Tractive effort||41,400 lbf (184.2 kN)|
|Train heating||Clarkson Steam generator, later replaced by Spanner 2,000 pounds (910 kg) per hour model|
|Railroad(s)||London, Midland and Scottish Railway, British Railways|
|Power class||6P5F, later 5P5F, later Type 3|
|Axle load class||RA 9|
British Railways Class D16/1 or 10000 and 10001 were the first mainline diesel locomotives in Great Britain. They were built by the London, Midland and Scottish Railway at its Derby Works, using the EE16SVT 1600 hp diesel engine with electric transmission, in association with English Electric and the Vulcan Foundry, with whom the LMS had had a long working relationship.
Something of a masterpiece in design from inception to completion took some 9 months, including a well frame design to fit British loading gauge of unique design in available post-war austerity materials, streamlined, art-deco twin cab design and the black & chromatic silver livery used for diesel prototypes at this time. The bogies basically took a good American pattern design, and with Fox and the team at Derby integrating British engineering creating a unique system of smooth riding which was pretty much copied on most British diesels and still in use today, the younger members and this team later joining the Research Division to design the APT bogies and much of our HS rail system using their advanced designs still today across Europe.
English Electric supplied the prototype 16SVT engine from Rugby, DC Generator from their Bradford Works, and Traction Motors from Dick,Kerr Works in Preston.
LMS 10000 was officially presented to the press at Derby Works in December 1947, having had its maiden run in November 1947, after several weeks of proving trials entered service on the Midland route in February 1948. 10000 was outshopped only three weeks before nationalisation, and when 10001 appeared in July 1948 it had British Railways livery. They operated over a number of routes out of St Pancras or Euston and 10000 was present at the naming of Ivatt 8P 'Duchess' 8P 4-6-2 at Euston in honour of Sir William Stanier, F.R.S. Designed to operate singly as equivalent of a 'Black 5', and in multiple in comparative trials against the 8P, Nationalisation and a political move to continue the coal based economy precluded these, but a comfortable run over Shap with the pair in multiple on the 'Royal Scot' with a tare of 17 bogie coaches established a haulage record still unmatched today. Ivatt 'filed' all correspondence from British Railways instructing the removal of the LMS letters which were finally removed upon his retirement in 1951.
Due to boiler problems they often worked winter freights and Royal Scot in summers. They were noted at Manchester Central, heading towards Manchester Piccadilly, trialled once upon the Settle and Carlisle, also working to Blackpool, Perth, Glasgow and, on one occasion all the way to Aberdeen. These lessons on steam boilers were not learnt, but a lot of background experience in diesel-electrics was gained by staff. In March 1953 they were both transferred to the Southern Region of British Railways to allow direct comparison to be made between them and the SR's 10201, 10202 & 10203 and remained there until spring 1955, notably working the Bournemouth Belle and occasionally through to Exeter, but also visiting Brighton Works. Really the low point of their career in terms of reliability, they (and the SR locomotives) were sent to Derby where they were overhauled and received green livery and then ran side by side on London Midland Region duties, back on the Royal Scot again in 1957-8. Laid up at Derby in 1963 with Bulleid's diesels, one good one 10001 was made of the two and it gained a yellow panel and soldiered on until 1966, said to be mainly on North London freights to Greenwich, but many photos on Wolverhampton expresses and WCML freights during this period. Between the two they clocked more than 2 million miles, very respectable for prototypes.
Both locos were lastly allocated to Willesden. 10000 was withdrawn in 1963 and scrapped at Cashmores, Great Bridge, in as late as May 1968. 10000 spent some time in storage at Derby and was one of the locos on display at the Derby Works Open Day and Flower Show in August 1964. 10001 was withdrawn in 1966 and scrapped at Cox & Danks, North Acton, in February 1968. Both locos were subject to preservation attempts from the Railwayman who appreciated the change and improvements gained by the switch to diesels, 10000 offered to Clapham but refused on grounds of space and not representing a class, and 10001 having been hidden at the back of Willesden and the locomotive due to haul it away failing at least twice...
The locomotive would today be recognised as perhaps the most important piece of railway history since the 'ROCKET' not to be preserved. The Ivatt Diesel Recreation Society plans to build a replica of LMS 10000, using contemporary parts as well as new build components. This landmark engineering project will see LMS 10000 become the first, and also the last mainline passenger diesel-electric locomotive built in Britain. The Society has achieved charitable status (Reg Charity No.1147032) and is currently in consultation with a number of experts in order to achieve derogation. Their Honorary President is Mr Stanley Fletcher, a retired English Electric engineer who rode on the Prototypes in 1948/9 for 150,000 miles, Diesel Engineers finally getting the recognition they deserve. The Society has purchased an identical early engine, one of only 24 such built, and as such the first V16 power unit built in the UK, subsequent later mass-produced developments finding widespread usage in generation, rail traction and marine usage 
- Hunt, David (2005). LMS locomotive Profiles Vol. 9: Main Line Diesel-Electrics Nos. 10000 and 10001. Wild Swan Publications. ISBN 1-905184-04-2.
- Whitehouse, P.; St. John Thomas, D. (2002). LMS 150. The London, Midland and Scottish Railway: A century and a half of progress. David and Charles.
- E.V. Richards. LMS Diesel Locomotives and Railcars. Railway Correspondence And Travel Society. ISBN 978-0-901115-76-8.
- Clough, David N. (2011). "2: Diesel-Electric Development after 1945". Hydraulic vs Electric: The battle for the BR diesel fleet. Ian Allan. pp. 14–18. ISBN 978-0-7110-3550-8.
|Wikimedia Commons has media related to British Rail Class D16/1.|
- "10000". www.lms10000.org.
- "10000". www.therailwaycentre.com.
- "Derby Works - its 1,010 diesel locomotives". www.derbysulzers.com. The three LMSR mainline Diesel locomotives.
- Britain's First Main-Line Diesel-Electric Locomotives , Diesel Electric Traction Series Number 103, Publisher: English Electric
- John Dixon. "10000 and 10001". fototopic.net.
- Mike Morant. "Archive diesel pictures of ex-LMSR 10000 & 10001 in colour & B & W". fototopic.net.[dead link]