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De OP Using stressed - skin construction with thin metal plates forming the sides and roof of the body, and steel tubes running the full length of the locomotive acting as the main members, total weight was kept under 80 tons. Maybach MD650 engines of 1,035 bhp each were coupled to Mekydro K104U four speed transmissions. The bogies were developed from the German design.
In January 1956, the BTC allowed the Western Region to build three pilot D800 'Warships' numbered D800 - 2 and later named Sir Brian Robertson, Vanguard and Formidable respectfully. Then in February 1957, over a year before the first members were built, a further order of 30 D800s was given to Swindon. The main difference with this batch was that the Maybach engines were uprated to 1,135 bhp each, except for number D830 which employed Paxman 12YJX engines, though again of 1,135 bhp.
During July 1958, while number D800 was undergoing trials prior to entering into traffic, a further order for 33 D800s was given, this time to NBL. Numbered D833 - 65, these locomotives would use the same MAN L12V18/21B engines of 1,100 bhp and Voith LT306r transmissions as fitted in the earlier D6300 class. All of the engines and 13 of the 33 sets of transmissions would be built by NBL.
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vorige deeltjes
http://ptaslowchat.tk
De code voor de op is hier te vindenChat on ![]()