Pillar Posted March 27, 2020 Share Posted March 27, 2020 Does anyone have any close up detail images of Class 20 bogies, preferably side-on? Most of the ones I've managed to find are either too small or have the suspension details in shadow. Cheers Liam Link to post Share on other sites More sharing options...
RMweb Premium keefer Posted March 27, 2020 RMweb Premium Share Posted March 27, 2020 Brian Daniels has a set of detail shots on flickr: https://www.flickr.com/photos/brianews/sets/72157627022453424/ 2 1 Link to post Share on other sites More sharing options...
Pillar Posted March 27, 2020 Author Share Posted March 27, 2020 Thanks. That's a fantastic resource. Not sure how I missed it! Cheers, Liam 1 Link to post Share on other sites More sharing options...
Evertrainz Posted March 27, 2020 Share Posted March 27, 2020 I’ll add Brian Daniels’ albums of detail shots for nearly every mainline loco class has been very, very useful in many situations. Adam Lucas on Flickr also has got nice libraries. https://flickr.com/photos/63609267@N05/sets/72157648321204748 Unless there already is such a resource on here - would a thread linking to detail picture libraries for each loco class be helpful? Currently it seems to be pure luck to strike a goldmine of photographs that answer every single question I have! Link to post Share on other sites More sharing options...
hmrspaul Posted March 27, 2020 Share Posted March 27, 2020 https://PaulBartlett.zenfolio.com/brclass20/e714f091 https://PaulBartlett.zenfolio.com/brclass20/e1f9caa48 https://PaulBartlett.zenfolio.com/brclass20/e23ff6a8a and others Paul Link to post Share on other sites More sharing options...
e30ftw Posted March 28, 2020 Share Posted March 28, 2020 As far as i know (happy to be proved wrong) there where two slight differences in class 20 bogies. Some have holes on the lower metal beam conecting the two axel boxes (sorry i do nto know the technical term) and some do not have the holes. Link to post Share on other sites More sharing options...
hmrspaul Posted March 28, 2020 Share Posted March 28, 2020 (edited) 2 hours ago, e30ftw said: As far as i know (happy to be proved wrong) there where two slight differences in class 20 bogies. Some have holes on the lower metal beam conecting the two axel boxes (sorry i do nto know the technical term) and some do not have the holes. Very clear in the photos I linked to. Looks very complicated. At least in later years they appear to be random. Of the DRS locos 20304 & 20305 holes under cab, plain under hood; 20308 both holes; 20309 & 20312 both plain. I haven't looked further! Paul Edited March 28, 2020 by hmrspaul Link to post Share on other sites More sharing options...
Titan Posted March 28, 2020 Share Posted March 28, 2020 (edited) 7 hours ago, e30ftw said: As far as i know (happy to be proved wrong) there where two slight differences in class 20 bogies. Some have holes on the lower metal beam conecting the two axel boxes (sorry i do nto know the technical term) and some do not have the holes. There are at least three variations - the first ones built had plain/flat, then there was fluted, and then fluted with holes, I think each one getting progressively lighter to help reduce unsprung weight. The technical term I believe is equalizing beam. An example of the early flat type: Of course during overhauls they could be swapped around and mixed up. Edited March 28, 2020 by Titan 1 1 Link to post Share on other sites More sharing options...
hmrspaul Posted March 29, 2020 Share Posted March 29, 2020 I'm not convinced there are only 3! This appears to be as the official but has a little fluting on the lower edge https://PaulBartlett.zenfolio.com/brclass20/e23a6eafd This has the fluting on the top not the bottom https://PaulBartlett.zenfolio.com/brclass20/e3b976e35 as does https://PaulBartlett.zenfolio.com/brclass20/e276d9a5c https://PaulBartlett.zenfolio.com/brclass20/e40c77808 As happens too often we haven't been given a clue as to the period the OP was interested in. These have had 60 years of life so lots of opportunities for developments as well as the obvious rebuilds. Lovely locos, I remember them at Euston on ECS etc. duties and much more recently heard three of them take a heavy rail train out of York South yard under Holgate bridge - amazing sound! Paul Link to post Share on other sites More sharing options...
jim.snowdon Posted March 29, 2020 Share Posted March 29, 2020 1 hour ago, hmrspaul said: I'm not convinced there are only 3! I think it can be said that there are three basic variations - plain, fluted and fluted with holes, but there are several variations on the fluting and, I suspect, how they were made. There are some which look to have had the fluting milled into them, in the same was was done for steam locomotive rods. There are fluted ones where only the central part is done, others where the fluting continues right to the ends, through the tapered section. I am not certain that there aren't some that are forged, and others that are fabricated. With two different works involved in building them, and several production batches there was considerable room for variation, if for no other reason than to fit the works' manufacturing capacity at the time. Then add to that the 20 bogies that were built for the D5900 Type 2s, which appear to have been identical for all intents and purposes and which may have been subsumed into the Class 20 stores stock when the D5900s were scrapped. Jim Link to post Share on other sites More sharing options...
RMweb Premium kevinlms Posted March 30, 2020 RMweb Premium Share Posted March 30, 2020 There is a useful article in Modelling Railways Illustrated for Volume 3 No.5 (January 1996), which includes several good photos of bogies and chassis details. By Rolf Farrell. Link to post Share on other sites More sharing options...
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