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Post by fish7373 on Mar 19, 2019 16:52:00 GMT
Just wondered if any one noticed that the two units 72 and 67 have been moved from Acton Town in to Acton Works For Scrapping
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Post by fish7373 on Mar 15, 2019 22:56:41 GMT
With spare cabs about it is now easier to cut and shut especially if there is underframe strengthening work taking place anyway. Thanks. You would think this is the logical way to do the work, but that is far from what went on. On the more recent cab repair, the car had to be rebuilt back to how it was before the accident, so it could be signed off by the engineers to the known standards, then the structure strengthening works could take place, to the next set of relevant standards. Totally backwards to me, but I understand why it was done like this. It has been done on the piccadilly line U170 Has The front of U204 on it i welded it on to say this one we did in house not TMU.
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Post by fish7373 on Mar 13, 2019 23:47:21 GMT
I did wonder what these were doing at Acton Town when I was out with some mates chasing the '38TS railtour the other week - Apologies for being uninitiated or simply ignorant, but what does 'AIT' stand for? Hi AIT Stands for Asset inspection train /
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Post by fish7373 on Feb 26, 2019 19:54:48 GMT
All so i see a Schöma loco number 9 is in Arlington Eastleigh Works as well.
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Post by fish7373 on Jan 28, 2019 23:37:55 GMT
The Central line tunnels require stock to be fitted with "high-lift" shoegear, and obviously at least some battery locos are also so fitted and there is no reason why stock with this cannot run on lines with conventionally placed juice rails. There must be some reason though why the high-lift shoe gear is not standard across all deep level stock - is it more difficult/expensive to install or maintain? Is it less reliable? Or is there something else I'm missing? All battery Locos have high-lift shoegear and the TRV has battey loco shoegear all so there is a cut out on the back of the shoe beam, Spring loaded shoegear AIT 95 96 stock. there is a high conductor rail westbound on the Central line that`s why 60 tube stock lost the shoe beams even with the shoes strapped up dont no why so high. 1967/72 and 73 stock not high lift shoegear
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Post by fish7373 on Dec 16, 2018 1:54:08 GMT
Clacton flyers one of the first 100 MPH EMU units and only EMU with commonwealth motor bogies they were good the 309`s
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Post by fish7373 on Dec 11, 2018 20:42:16 GMT
Not bad few mm out to say from Rolling Stock Manual page 15 of that document has the figures I quoted. You are right Dstock7080 Thanks i past this page 15 which one is right.
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Post by fish7373 on Dec 11, 2018 19:12:24 GMT
Hello again. I am wondering if there are any resources available that tell us what the size and radius of Tube Stock wheels are. If there isn't a designated standard for the size, are there resources that tell us what the size and radius of the 1938 Stock wheels are? 1938 LT100A RH 168/122 V 575 A 240/172 W DIA 31 in GR 18:59 Rev/min@60 mile/hr 2130 Wheel DIA 31 in
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Post by fish7373 on Dec 11, 2018 19:01:07 GMT
1956/59/62 788mm 1960 788mm 1983 788mm 2009 740mm S 770mm Not bad few mm out to say from Rolling Stock Manual
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Post by fish7373 on Dec 6, 2018 18:51:19 GMT
As others have alluded, it's because there is the possibility of part-sets running outside of Stonebridge Park; RSSB standards require full colour ends, though LU have a derrogation for red rather than yellow. I thought there was only one though. AIT Train has a yellow Front Engineers Vehicle.
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Post by fish7373 on Nov 23, 2018 0:28:56 GMT
The problems of compatability with various stocks are are not insurmountable. The most obvious differences between Q and later stock is that Q stock is car stock, designed to run as individual cars formed to make a train using Ward couplers; it has everything working from line volts except door controls and certain driving controls. Braking systems are much the same as later stock, a standard Westinghouse air brake and the earlier A type EP brake. It has separate jumper cables and air pipes between cars. Later stock is "unit" stock, permanently coupled in 2,3 or 4 car units with bar couplers at inner ends and Wedgelock couplers at outer ends. These carry not only the physical mechanism to couple the trains together but have the electrical and air connections. These are totally incompatible with Ward couplers. However, with the Q stock being extensively rebuilt with modern low voltage wiring for the lights and control circuits, it would be possible to make it electrically compatible with later stock providing it could be fitted with Wedglock couplers on the outer ends. The same sort of problems will be encountered with BR SUB stock and EP-type units. SUBs have everything working from line volts, no EP brake, just Westinghouse, and no buckeye couplers. That would not stop a SUB being coupled to an EP unit using the screw coupler, air brake extension pipes and hauling the lot with a suitable locomotive. It would not be possible to control a SUB from an EP unit and vice versa. I'm also aware that district stock carried an emergency Ward to Wedglock coupling adaptor for emergency use. But these did not have any facility to enable a through brake pipe or control wires. It was a pure mechanical device and very heavy when it had to be deployed! One like this roythebus i still have one at Northfieds Depot that`s why they want Money to do the two brake vans up for the Q stock.
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Post by fish7373 on Nov 22, 2018 0:11:55 GMT
Thanks for the photo Fish a very neat solution indeed. How congested is it under the 8XX trailers? They have two compressors right? Do they both operate side by side or is one a back up in case one fails? I assume they both feed one air reservoir or is that all duplicated too? Is there still an auxiliary reservoir on these trains? Hi on a double ender you have two of ever thing the two compressors operate side by side air wise the same two main line tanks all cars have auxiliary air tanks for the brakeing on the 7 step relay.
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Post by fish7373 on Nov 21, 2018 23:58:17 GMT
Hi all yesterday i was in the mueseum looking at the Q stock to do some work on one of the cars they are only working on the Q35 trailer 08063 and Q38 4417 at the moment the other Q38 car is outside covered over but still needs working on same as the Q23 motor car and there is still a lot of work to be done on them to say. and only running as a three car unit and we did talk about signaling out there is a box with some MODS you can plug in but for a lot of money i wont go in to much detail for the 38.
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Post by fish7373 on Nov 16, 2018 22:41:20 GMT
Wow, that's a really neat solution. How long does it take to fit out a unit with the equipment? It takes us about 4 days to fit to one unit.
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Post by fish7373 on Nov 15, 2018 22:16:14 GMT
Photo of RAT pipe work to bogie from inside of car.
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Post by fish7373 on Nov 15, 2018 22:02:38 GMT
How does the sandite get from the pumps in the saloon to the underframe? Can't imagine it going though the doors as that requires playing with the door interlocks? I will find a photo for you.
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Post by fish7373 on Nov 15, 2018 19:57:27 GMT
There are indeed 1973 stock RAT trains out for the duration of the lead fall season/timetable. Same set up a last year with one unit for each open end of the line respectively using the exact same numbered 3 car formations as before. Most likely due to the fact there is a hole in the floor for the sandite pipes? There is no holes been drilled through the floor this is the second year i had to fit it to the two units and take it off and put back in the box the reason we used the same trains both have a good history on reliability to say no gremlins in the works.
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Post by fish7373 on Oct 22, 2018 21:58:45 GMT
Why have we got D STOCK RAT on The pic page
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Post by fish7373 on Oct 10, 2018 18:22:28 GMT
A photo
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Post by fish7373 on Oct 8, 2018 18:23:27 GMT
The RAT was out to day on test and the same units as last year.
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Post by fish7373 on Sept 15, 2018 15:35:45 GMT
1973 SEQUENCE chart
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Post by fish7373 on Sept 14, 2018 12:12:52 GMT
1972 Traction diagram
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Post by fish7373 on Sept 14, 2018 1:17:26 GMT
Dstock7080:
Have you (or anybody?) got both a"Sequence Chart" and a "Power Circuit" of Single and Double Camschaft system that has rheostatic braking as well?
This way I could hopefully(!) understand what is happening during acceleration, transition and rheostatic braking.
I have Pierce Connor's "The London Underground Electric Train", but it does not give all the answers.
pekka
One from the 1960 Tube Stock
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Post by fish7373 on Sept 4, 2018 19:26:04 GMT
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Post by fish7373 on Sept 3, 2018 20:13:00 GMT
ROYTHEBUS release/running/charging to EP application, once the train had started to slow to his requirements, he'd put the handle to EP lap, which would de-energise the ep application valve and hold the constant brake cylinder pressure. Later stock had the d type EP brake where it was self-
On EP There is no running or charging and LAP is only used when the train is stopped
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Post by fish7373 on Sept 3, 2018 18:28:21 GMT
Q = RPAs will continue to full parallel even though driver would move CT/BC from A "Parallel" to B "Series" or C "Shunt". Answer = Full Parallel move to Series will notch down to Series move to Shunt will Notch down to shunt, Full Parallel To OFF RPA Will Not Notch Down just drop out. just run back to off.
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Post by fish7373 on Sept 2, 2018 15:13:09 GMT
Can someone please say what RPA stands for please, I am ashamed to say that I cannot remember. Doh, just seen the thread title. Don't worry, I did exactly the same and was about to administer a reminder, before noticing the thread title myself... oops! Rotary Pneumatic Accelerator Stands for.
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Post by fish7373 on Aug 26, 2018 11:08:39 GMT
This is the LT museum web site go to the web page. Coped and paste PS But we can’t do it without your support. We need to generate £100,000 to complete work on the undercarriage of all three cars and a further £50,000 to restore two brake vans which will enable the train to run. donate.ltmuseum.co.uk/q-stock-restoration/
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Post by fish7373 on Aug 25, 2018 20:29:31 GMT
2x Schoma locos and wagons giving problems at Earl's Court earlier, after coming out of the Wimbledon branch possession, tried to reverse via Earl's Court yard but rear loco failed. That`s interesting i was informed that all Schoma locos where all stopped .
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Post by fish7373 on Aug 19, 2018 20:43:30 GMT
GWR Hawksworth Large Pannier Tank 9466 Yesterday at 10:10 · It is with regret and a heavy heart to bring the news to you, that our friend and leader Dennis Brynley Howells MBE sadly passed away peacefully this morning with his family by his side. I would especially like to thank his sister Gwyn for the tower of strength she has been and the support she has given him, and for all the love and support shown from his family and friends. Dennis will always be known as a proud man and I ask you all to please respect the familys privacy at this difficult time. I beg you to take a moment and think of the happy times shared with this incredible man. I will endeavour to keep you all updated as and when I know more. His memory will live on through everyone that he has touched throughout his 78 wonderful years and through his endless achievements that are all around us to see. Nick Crook & The 9466 Team
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