Deleted
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Post by Deleted on Jun 13, 2006 14:16:54 GMT
Wouldn't that require the expansion of Stanmore sidings then, in order to balance the train diagrams? I postulated once that Stanmore and Stratford together could fulfill all of the Jubilee Line diagrams with regards to start points, end points and train balancing in the morning start-up and evening shut-down, but was informed that Neasden plays a critical role due to its location on the line.
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towerman
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Post by towerman on Jun 13, 2006 18:42:53 GMT
By 2010,the stabling roads at Stanmore should all be doubled up,that's 20 trains at Stanmore,only need to find room for 43 trains at SMD!!!
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Post by Deleted on Jun 14, 2006 3:16:40 GMT
I thought Stratford Market was supposed to be able to hold 59 6-car trains - how many 7-car trains can it hold then?
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towerman
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Post by towerman on Jun 14, 2006 19:57:23 GMT
Not allowing for odd bits and pieces lying around the yard and stabling trains on all 3 reception roads,you might just get 43 trains in SMD,but you wouldn't be able to do any shunting overnight which might be a bit of a drawback.I reckon Stanmore and Neasden will do a swap,20 trains at Stanmore,10 at Neasden,the rest at SMD,all will be revealed around 2010.
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Post by Deleted on Jun 14, 2006 23:45:34 GMT
The big question now is who will be in control of when and how those 10 trains are let out of Neasden - both citysig and Harsig have expressed concerns that if the entry and exit points at Neasden Depot are controlled by the Jubilee Rotunda near Neasden station, the Met service may suffer in times of heavy SSL train movements.
Getting back on topic, is a D stock likely to return to the Met anytime soon?
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Post by Tubeboy on Jun 15, 2006 13:16:55 GMT
Just been reading a copy of underground news [september 2000] which shows a photo of a "D" stock unit at Amersham, it was on trial with a new bogie design.
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Deleted
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Post by Deleted on Jun 15, 2006 14:03:01 GMT
Just been reading a copy of underground news [september 2000] which shows a photo of a "D" stock unit at Amersham, it was on trial with a new bogie design. I beleive a D stock has been up there again as well for de iceing purposes, dont ask why.... |
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Post by Deleted on Jun 15, 2006 16:01:53 GMT
a few years ago i can remember ealing common running out of de-icer fluid and sending a d stock to neasdon me and another t/o was on this train incase the points failed due to the ice
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Ben
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Post by Ben on Jun 16, 2006 2:27:39 GMT
Is D stock not permitted to run in passenger service between baker street-hammersmith/ earls court if in 3car formation anymore?
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Colin
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Post by Colin on Jun 16, 2006 2:46:19 GMT
AFAIK, three car D stocks are a thing of the past - something to do with only having one operational compressor on a 'double ender' these days (a passenger train should have two).
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towerman
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Post by towerman on Jun 16, 2006 3:10:25 GMT
Surely they haven't removed a compressor from the double enders,how can the powers that be know which end of the unit will be leading,could cause problems if the non compressor end is railed on a train in the pits and someone takes out the back lead too early.
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solidbond
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Post by solidbond on Jun 16, 2006 7:14:49 GMT
I've seen this mentioned before and I'm afraid someone has been misled - the double-enders DO still have both compressors fitted, and working. I know cos I was training on one the other week, and it's a bloody pain when doing Main Line Bursts on the single-end unit  ;D ;D ;D |
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Colin
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Post by Colin on Jun 17, 2006 2:58:13 GMT
In that case, i've been misled - by a stock instructor at Acton Town who shall remain nameless (GW ). |
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solidbond
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Post by solidbond on Jun 17, 2006 9:12:13 GMT
And just to confirm, I was on a double-ender yesterday, and sure enough BOTH compressors were cut in and working (and it WAS a bloody pain doing the Main Line burst on the other unit  ;D ;D) |
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Post by Deleted on Jun 17, 2006 16:54:58 GMT
Likewise my stock refresher took place on the TWO double ender refubs when still coupled together .....
The train having 4 operational compressors was panicking my stock instructor no end whilst doing air bursts !
Great fun !!! ;D ;D ;D ;D
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Deleted
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Post by Deleted on Jun 17, 2006 20:48:37 GMT
Why would the additional compressors cause problems simulating an air burst?
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solidbond
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Post by solidbond on Jun 17, 2006 21:22:57 GMT
Why would the additional compressors cause problems simulating an air burst? The main problem is that when we simulate a burst, we open a cock to drain the Main Line air. With extra compressors working, they will often overcome the 'hole' we put in the pipe. This can mean having to open the cock further than normal, which can cause extra dust etc to be blown about - not nice if you are in the vicinity . The other problem is that, when putting the 'burst' on the single end unit, the compressors on the other 'good' unit, will charge up quicker if it is a double ended unit, after the isolations have been made, causing the Main Line safety valve to open. This can occasionally stick open, causing a 'burst' on that unit  |
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;D ;D ;D
;D ;D)
