KeithMacdonald Posted July 21, 2022 Share Posted July 21, 2022 Another drone pic from "Stapleton Road". His caption might be more interesting than the pic Quote 60055 Thomas Bernardo is in Hackney Yards Newton Abbot at the head of what will be a proving run for DCR, part of the Cappagh group. She is moving stone to Willesden for use in the HS2 project. I think the stone is a by product of the new Tungstone mine on the outskirts of Plymouth. The "Tungstone" (sic) is from Hemerdon. Changing times! A while ago mining in Britain was discouraged because "environment". And now... Quote Tungsten West plc is restarting the World Class Hemerdon Tungsten-Tin Deposit located in South Devon ... Tungsten is an essential strategic metal used across several important applications ... The Hemerdon Tungsten-Tin Mine, formerly known as Drakelands Mine or the Hemerdon Ball or Hemerdon Bat Mine, was an operating tungsten and tin mine between August 2015 and October 2018 under previous operators Wolf Minerals (UK) Ltd. (Wolf). The mine is located 7 miles NE of Plymouth, near the village of Plympton, in Devon, England, and has been categorised as a world class deposit due to the scale of the deposit within a global context. https://www.tungstenwest.com/ 4 1 1 Link to post Share on other sites More sharing options...
Popular Post montyburns56 Posted July 22, 2022 Author Popular Post Share Posted July 22, 2022 Perth MPD 1963 by Brian Flannigan 19 1 1 1 Link to post Share on other sites More sharing options...
KeithMacdonald Posted July 22, 2022 Share Posted July 22, 2022 Need a rest? Quote Stephen Widdowson - Bere Ferrers 4 4 Link to post Share on other sites More sharing options...
KeithMacdonald Posted July 22, 2022 Share Posted July 22, 2022 Be still my aching heart.... 3 1 Link to post Share on other sites More sharing options...
KeithMacdonald Posted July 22, 2022 Share Posted July 22, 2022 Vorsprung durch Technik? Thanks to mailrail for this. Quote Filming for the James May longest model railway challenge at Bideford. This was the German team from Minitatur Wunderland who started at Bideford. www.miniatur-wunderland.com/ This was during the filming of James Mays reattempt at his challenge to create the longest model railway line between Barnstaple and Bideford, but this time with a race between British model railway enthusiasts against a German team from Miniatur Wunderland. With sturdier track and a new power system, along with Oz Clarke helping out, the teams compete with three different model trains - a steam locomotive, an electric train, and a modified model train with a unique power source - racing from opposite ends. The renewed attempt proves a success, completing what was started in 2009, with the British beating the Germans by being the first to their destination with two trains. 1 Link to post Share on other sites More sharing options...
montyburns56 Posted July 23, 2022 Author Share Posted July 23, 2022 Makkasan Works, Bangkok by Don Glover 10 1 Link to post Share on other sites More sharing options...
Popular Post montyburns56 Posted July 24, 2022 Author Popular Post Share Posted July 24, 2022 Thornton Marshalling Yard 1966 by Brian Flannigan 22 Link to post Share on other sites More sharing options...
montyburns56 Posted July 25, 2022 Author Share Posted July 25, 2022 Rhymney c1964 by Ray Viney 17 Link to post Share on other sites More sharing options...
montyburns56 Posted July 26, 2022 Author Share Posted July 26, 2022 Brother from another mother... 975010 'Iris' at Derby Works, 01/09/1979 by Robert Chilton 8 Link to post Share on other sites More sharing options...
RMweb Premium keefer Posted July 26, 2022 RMweb Premium Share Posted July 26, 2022 Nah, Iris is the sister from another mister!🙂 6 Link to post Share on other sites More sharing options...
pH Posted July 27, 2022 Share Posted July 27, 2022 Prototype Deltic testing on the Settle and Carlisle: https://mobile.twitter.com/railwaycentral/status/114146501646347878 I presume the back two coaches are mobile test plants. 2 Link to post Share on other sites More sharing options...
Nearholmer Posted July 27, 2022 Share Posted July 27, 2022 If I was to guess, I'd say they have traction motors running as generators, plus resistor banks, in them, to provide a precisely controllable load. Link to post Share on other sites More sharing options...
montyburns56 Posted July 27, 2022 Author Share Posted July 27, 2022 Does anyone know when these went full custard? 43001 1979 Derby by John Wooley 5 Link to post Share on other sites More sharing options...
RMweb Premium keefer Posted July 27, 2022 RMweb Premium Share Posted July 27, 2022 (edited) @pH said "I presume the back two coaches are mobile test plants". Ex-LMS Mobile test units: http://www.traintesting.com/MTU.htm Some more pics of DELTIC under test: http://www.traintesting.com/traction_performance_testing.htm Edited July 27, 2022 by keefer To tag 1 1 Link to post Share on other sites More sharing options...
Nearholmer Posted July 27, 2022 Share Posted July 27, 2022 Skim read it, and confess that I still don’t understand how it works, because I can’t see anywhere for the energy dissipated at the loco to go ……. I’m still looking for resistor grids! Link to post Share on other sites More sharing options...
RMweb Premium Moxy Posted July 27, 2022 RMweb Premium Share Posted July 27, 2022 42 minutes ago, montyburns56 said: Does anyone know when these went full custard? 43001 1979 Derby by John Wooley Somewhere between 1976 & 1978. There are other pictures on Flickr of that full yellow end, the earliest I have found so far is 1978. 1 Link to post Share on other sites More sharing options...
billy_anorak59 Posted July 28, 2022 Share Posted July 28, 2022 Might narrow things down a bit further - still only semi-custard in Sept 1977 - 002 at Crewe works 24/09/77: 7 1 Link to post Share on other sites More sharing options...
Nearholmer Posted July 28, 2022 Share Posted July 28, 2022 Did well to capture not just one, but two alien interstellar cruisers in that photo. Have you tried selling it to The National Enquirer? 1 13 Link to post Share on other sites More sharing options...
goldfish Posted July 28, 2022 Share Posted July 28, 2022 15 hours ago, Nearholmer said: Skim read it, and confess that I still don’t understand how it works, because I can’t see anywhere for the energy dissipated at the loco to go ……. I’m still looking for resistor grids! The reference includes a link to a description of the test plant in action. http://www.traintesting.com/Mobile_test_plant_in_action.htm Quote The taking of indicator diagrams at precisely maintained road speeds is, however, only one outcome of the central feature of the mobile test plant – the electrical braking units and the method of automatically controlling the speed. The principles involve were described in complete detail in Dr Andrews’s paper read before the Institution of Mechanical Engineers in April 1948, and reported in THE ENGINEER, April 23, 30 and May 7 1948. Looking at the picture of the Generator there are no heavy cables coming out of it, so possibly the energy is dissipated internally within the Generator. The generator drives some sort of electrical brake perhaps. Link to post Share on other sites More sharing options...
billy_anorak59 Posted July 28, 2022 Share Posted July 28, 2022 1 hour ago, Nearholmer said: Did well to capture not just one, but two alien interstellar cruisers in that photo. Have you tried selling it to The National Enquirer? 😛 Nice thought, but I'm not in it for the money - just keep watching the skies, the truth is out there! I have a natural talent for things like that when taking photos - not just the extra terrestrials; also note the perfectly framed brick wall and the beautifully off-centre and sloping composition of the locomotive itself... 4 Link to post Share on other sites More sharing options...
Nearholmer Posted July 28, 2022 Share Posted July 28, 2022 45 minutes ago, goldfish said: Looking at the picture of the Generator there are no heavy cables coming out of it, so possibly the energy is dissipated internally within the Generator. The generator drives some sort of electrical brake perhaps. The diesel generator provides excitation current to the axle-driven generators, the output from the latter being controlled by controlling the former. If by “electrical brake” you mean magnetic attraction or repulsion braking, I don’t think so, I’m pretty certain it is rheostatic braking using resistor grids that aren’t shown in the photos. Nock’s description is all very odd, skipping over key points - maybe he expected his readers to have seen the paper by Andrews that he mentions. That paper is available on-line, but you have to pay for it, and I’m not that curious! Link to post Share on other sites More sharing options...
Fat Controller Posted July 28, 2022 Share Posted July 28, 2022 1 hour ago, Nearholmer said: The diesel generator provides excitation current to the axle-driven generators, the output from the latter being controlled by controlling the former. If by “electrical brake” you mean magnetic attraction or repulsion braking, I don’t think so, I’m pretty certain it is rheostatic braking using resistor grids that aren’t shown in the photos. Nock’s description is all very odd, skipping over key points - maybe he expected his readers to have seen the paper by Andrews that he mentions. That paper is available on-line, but you have to pay for it, and I’m not that curious! There would appear to be a number of rectangular vents on the roofs of the two test vehicles. Link to post Share on other sites More sharing options...
eastwestdivide Posted July 28, 2022 Share Posted July 28, 2022 (edited) 4 hours ago, billy_anorak59 said: 😛 Nice thought, but I'm not in it for the money - just keep watching the skies, the truth is out there! I have a natural talent for things like that when taking photos - not just the extra terrestrials; also note the perfectly framed brick wall and the beautifully off-centre and sloping composition of the locomotive itself... See also this thread (edit: despite the missing photos on a lot of pages): Edited July 28, 2022 by eastwestdivide 1 Link to post Share on other sites More sharing options...
Nearholmer Posted July 28, 2022 Share Posted July 28, 2022 Engineer has kindly provided me with a copy of Andrew’s paper about the LMS test train, and very interesting and comprehensive it is too! I’ve only skimmed it so far, but yes, the braking force is provided rheostatically, exactly as I guessed at the very outset. The roof hatches do indeed sit over the resistor banks, which are force-ventilated, with outlet air temperatures up to 350 Fahrenheit. 1 Link to post Share on other sites More sharing options...
montyburns56 Posted July 28, 2022 Author Share Posted July 28, 2022 Granton 1965 by Brian Flannigan 13 Link to post Share on other sites More sharing options...
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