Nog even voor de duidelijkheid, deze locs waren geen class 08, maar class 11 locs.
Class 11 Diesel Shunter #12049LMSR/English Electric 350hp 0-6-0 Diesel-ElectricClass: LMSR Class OF, BR Class DEJ3, later D3/8; 3/8A; TOPS 11Purpose: General shunting duties Introduced: 1944Original numbers: (WD) 70260-70273, (LMSR) 7120-7132, M7130/1, 12045-12138 BR numbers: 12033-12138Total built: 120Details of Nos 12033-12138: Engine: English Electric 6KTNo of cylinders - 6Max cont rated output: 350hp at 680rpmMain generator: English Electric EE 801Traction motors: Two English Electric EE 506Type of suspension: noseType of gear drive: double reductionPerformance: Tractive effort 35,000lbBraking: Air for locoSpeed: 20mphTank capacity: Engine fuel 660galThis wartime design was the outcome of all the trials and tribulations the LMSR had experienced during their pioneer work on diesel shunting locomotive design and development. In particular it carried-on the use of the trustworthy EE Co type 6KT power unit, but it returned to the two-motor, outside-frame arrangement, in favour of the jackshaft-drive. The reason for this was that troubles had been experienced with excess stresses on the frames of the jackshaft-drive locomotives; whilst in the interim a very successful modification had been applied to EE Co twin-motor No 7074 (as described on page 24) whereby the use of double reduction gearing and force-ventilated traction motors had eliminated the problems of overheating. The first locomotive appeared in 1944, and it was destined to set the basic standard for all that have followed since for BR use; as well as being adopted by certain overseas railways. The first order was in fact for WD use, but after 14 of the 20 ordered by the WD had been built, the final six went instead to the LMSR, who had in fact designed them for their own use in the first place! This slightly austere- looking 47.5 ton diesel electric 0-6-0 was to prove so successful that all told 106 were built by 1952 (four years after nationalisation), including 36 built at Darlington for ER and NER use. In 1946 the LMSR announced it was to be their standard type of diesel-electric shunter, and BR at first continued this policy, trying-out a 400hp engine in No 12045, the first one built under their auspices. This was because R. A. Riddles was evaluating the EE Co engine for future standard use, perhaps at the higher power rating. It later reverted to 350hp. Of interest is the fact that the Dutch railways (NS) tried-out both the jackshaft and the twin-motor versions of the LMSR/WD shunters, and preferred the twin-motor version, and purchased some secondhand. They were considered to be extremely successful, and led to further orders afterwards, direct from the EE Co. Withdrawal of the class commenced in 1967 and the run-down was relatively swift, with the last examples going in 1971, a combination of loss of freight traffic and the rationalisation of motive power under the National Traction Plan being largely responsible. A number survive in other ownerships, and three have been preserved: WD No 70272 on the Lakeside & Haverthwaite Railway; BR No 12077 at the Midland Railway Centre, Butterley, and BR No 12131 on the North Norfolk Railway, Sheringham. *The total for locomotives on BR was 106, the 14 WD examples not going into BR ownership.
Om even terug te gaan naar de vraag, Marcel refereert aan het boek "Diesellocomotieven in Nederland". Nou kan het nooit kwaad om in zo'n boek even door te lezen, en wat zienik? Op blz. 39, rechts onderaan staat: "Ofschoon de eerste tien 500'en in hun WD-tijd donkergrijs waren,.....Dit is toch eigenlijk het antwoord op de vraag?
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