Tom
Administrator
Signalfel?
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Post by Tom on Dec 6, 2020 12:08:25 GMT
Probably not since 1938.
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Post by Dstock7080 on Dec 6, 2020 15:25:37 GMT
Has any tube stock in recent times entered service in the year it was named after? Miraculously, the first 1972 mk.I Stock entered service in 1972! |
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Post by jimbo on Dec 6, 2020 18:29:04 GMT
The first of the Victoria line 2009TS trains entered service in 2009! A couple of pre-production trains were due for trials in 2007, allowing one to enter service in the correct year. The production run started that same year, allowing the main fleet to enter service in 2010-11.
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Post by exwatfordian on Jan 22, 2021 14:06:26 GMT
May I ask if there will be different specifications for the NTfL stock for each line; such as seating, power, length etc; or will they all be the same?
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Post by t697 on Jan 22, 2021 17:23:39 GMT
If the same generic design was used for Central line replacement eventually I'd expect a longer train than the Picc line one, more like the present Central line train length.
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Post by jimbo on Jan 22, 2021 19:32:15 GMT
As I understand, the intention was for a universal design for ease of staff training and spares maintenance. The Picc and Bakerloo trains would be identical. The Central and W&City length would vary by number of cars, plus adjustment of length of the end cars. We now have a suggestion for Jubilee fleet replacement, with larger tunnels and gentle curves, so maybe a bigger version could be developed, as was done for the current Victoria line trains which cannot fit elsewhere.
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Post by Dstock7080 on Feb 10, 2021 16:03:56 GMT
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londoner
thinking on '73 stock
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Post by londoner on Feb 11, 2021 0:31:01 GMT
Wonderful news.  |
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metman
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5056 05/12/1961-23/04/2012 RIP
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Post by metman on Feb 11, 2021 21:00:12 GMT
Good to see these trains being built in Britain!
Perhaps they saw the import charges from Europe! 😂
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Post by jimbo on Feb 12, 2021 0:53:22 GMT
UK production was part of the deal offered by Siemens to gain the contract for potentially 250 trains for four lines. The pre-production trains were always expected from Europe, with perhaps some early production trains. The Programmes and Investment Committee meeting on 5 March 2020 heard only 50% of the rolling stock would be built in Goole, so only around a year of production for the new factory.
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Post by goldenarrow on Mar 4, 2021 12:38:22 GMT
Some photos released by Siemens who had a virtual product unveiling today with the Mayor of London and seniors from LU among others. Click here if tweet doesn't load. |
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Post by Dstock7080 on Mar 4, 2021 13:14:16 GMT
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Post by quex on Mar 4, 2021 14:59:17 GMT
I was desperately hoping they'd reconfigure those tiny windows, I think it'll be so claustrophobic. I appreciate intermediate window pillars are needed for the air cooling system but the original 2014 PriestmanGoode renders didn't appear nearly so bad.
I think the retention of the thin blue "accent" stripe is welcome though, it's subtle but it does add positively to the look. It's nice to see that other ideas have carried through from the original 2014 concept designs, like the circular lighting feature around the grab pole in the vestible, and the "ring" of LED lighting around the front of the train.
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Chris M
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Post by Chris M on Mar 4, 2021 16:13:52 GMT
the "ring" of LED lighting around the front of the train. Not required for the Piccadilly line of course, but I wonder if this would satisfy the NR requirement for a high-level light? It seems very unlikely that there is enough solid red (in lieu of yellow) for it to be compliant with older standards. |
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Post by altanader on Mar 4, 2021 19:35:10 GMT
What intrigues me most is, I thought the “aircon” debate was connected with the deep level tunnels being unable to dissipate the heat due to the London clay. I’m guessing the aircon will only run above ground?
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Post by spsmiler on Mar 4, 2021 19:37:15 GMT
These trains will revolutionise how passengers travel - especially those who like to be by the single doors at car ends!
It would be nice if the 'thin blue "accent" stripe' was in line colour depending on line served.
Will the 100 km/h speed ever be reached? (Piccadilly / Central / Bakerloo lines only ... erm, I'd rather not be on a train even trying to reach that speed on the W&C route!!!)
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Post by t697 on Mar 4, 2021 20:41:11 GMT
Will the 100 km/h speed ever be reached? (Piccadilly / Central / Bakerloo lines only ... erm, I'd rather not be on a train even trying to reach that speed on the W&C route!!!) Quite possibly. The existing 1973TS was designed for that sort of speed but the 2nd and 3rd stages of field weakening never commissioned due to not enough of the line being signalled appropriately for the speed increase. Some of the Heathrow branch and the Met Uxbridge line can support speeds of that order I think. |
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North End
Beneath Newington Causeway
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Post by North End on Mar 4, 2021 21:06:27 GMT
Will the 100 km/h speed ever be reached? (Piccadilly / Central / Bakerloo lines only ... erm, I'd rather not be on a train even trying to reach that speed on the W&C route!!!) Quite possibly. The existing 1973TS was designed for that sort of speed but the 2nd and 3rd stages of field weakening never commissioned due to not enough of the line being signalled appropriately for the speed increase. Some of the Heathrow branch and the Met Uxbridge line can support speeds of that order I think. The 73 stock can just about reach 55-60 mph in a few locations. Heathrow T123 to T5 w/b and Oakwood to Southgate w/b being the favourites. The approach to Hatton Cross w/b used to be a good bet as well, however the signalling doesn’t seem to permit this since the T5 modifications happened. Whilst this used to be common a decade or two ago, this isn’t really seen nowadays. |
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Post by holborncentral on Mar 4, 2021 22:51:19 GMT
I saw the pics on Twitter and tweeted a bit about it. I'm glad they went with the design from the original concept video. It still looks 'London Underground' but it's more modern and it has aircon for those hot days! Just one thing - I wonder will they have luggage space for people travelling to/from Heathrow when we can all go abroad again? I hope to be in London for the last day of service of the '73 stock, if there is one
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Chris M
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Post by Chris M on Mar 4, 2021 23:34:24 GMT
I hope to be in London for the last day of service of the '73 stock, if there is one There definitely will be a last public service for the 73 stock - they aren't going to carry on forever! How this is (or isn't) advertised in advance will not have been decided yet. It is very likely there will be a special last trip, as these are usually good revenue earners, but again it is way to early for any planning to have even started. |
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Post by jimbo on Mar 5, 2021 8:58:47 GMT
It's hard to believe that the new 9-car trains will feature longer cars than the 6-car trains that they replace! That's what the press releases say.
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Post by t697 on Mar 5, 2021 11:40:00 GMT
It's hard to believe that the new 9-car trains will feature longer cars than the 6-car trains that they replace! That's what the press releases say. A bit of marketing confusion I think. Maybe they are counting two adjacent shells as one car. Or indeed the whole train since it's walk-through without doors from cab to cab at each end. The downloadable pdf gives the train length as 113.7m which is roughly 5m longer than 1973TS. |
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Chris M
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Post by Chris M on Mar 5, 2021 12:11:39 GMT
It's hard to believe that the new 9-car trains will feature longer cars than the 6-car trains that they replace! That's what the press releases say. Reminds me that when three-car DLR trains started running to Beckton the platform DMIs were advertising "3 car carriages" |
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Post by Chris L on Mar 5, 2021 17:51:37 GMT
I was desperately hoping they'd reconfigure those tiny windows, I think it'll be so claustrophobic. I appreciate intermediate window pillars are needed for the air cooling system but the original 2014 PriestmanGoode renders didn't appear nearly so bad. I think the retention of the thin blue "accent" stripe is welcome though, it's subtle but it does add positively to the look. It's nice to see that other ideas have carried through from the original 2014 concept designs, like the circular lighting feature around the grab pole in the vestible, and the "ring" of LED lighting around the front of the train. Glass is heavy. Weight reduction is important. |
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Post by jimbo on Mar 5, 2021 19:17:06 GMT
When the new Vic line trains arrived under PPP, LU said that the small windows were accepted on a line without surface running, but would not be accepted on any other line.
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Post by jimbo on Mar 5, 2021 19:21:34 GMT
the "ring" of LED lighting around the front of the train. Not required for the Piccadilly line of course, but I wonder if this would satisfy the NR requirement for a high-level light? It seems very unlikely that there is enough solid red (in lieu of yellow) for it to be compliant with older standards. If more are ever to be delivered for the Bakerloo, they will have to meet NR requirements. The ribbon of light around the front is not all of equal intensity. Whilst the upper section is mainly decorative, the lower straight sections are of higher headlight intensity to illuminate the road ahead and be seen for some distance. |
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Post by Chris L on Mar 5, 2021 20:41:04 GMT
When the new Vic line trains arrived under PPP, LU said that the small windows were accepted on a line without surface running, but would not be accepted on any other line. The smaller windows mean the car bodies are more rigid. The curved windows on the Central line trains were an absolute disaster. The car ends twisted out of shape. |
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Post by quex on Mar 5, 2021 20:53:04 GMT
Glass is heavy. Weight reduction is important. Google suggests glass is less dense than aluminium, which would imply larger windows would reduce weight. Obviously there's a limit to how large a window can be without reducing the integrity of the vehicle, so I'd have imagined it's structural, rather than weight considerations that play a bigger part in window design. But without getting a tape measure out, all other tube stock seems to have managed larger windows than present on the final renders we've seen for these trains.
Regarding NR visibility standards, I'm told that dispensation for yellow fronts or no is given effectively on a case-by-case basis. The new Greater Anglia Aventra units, with similarly powerful headlights to those on Aventras running elsewhere, require yellow fronts as they operate in a part of the world with many level crossings.
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metman
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Post by metman on Mar 5, 2021 21:52:17 GMT
Certainly not a fan of the small windows they look very poor in my opinion. There are a lot open sections on the Piccadilly can’t see this going down well!
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Post by Chris W on Mar 5, 2021 22:17:57 GMT
Certainly not a fan of the small windows they look very poor in my opinion. There are a lot open sections on the Piccadilly can’t see this going down well! The smaller windows was a design dating back to the previous New Tube For London by PriestmanGoode.
Having spoken to Paul Priestman - who created/was responsible for the original design - as part of my @railexpress article [December 2014], he commented that it was a nod/acknowledgement to the heritage 38 Tube Stock...
I also understand that the wider pillars relate to air circulation/conditioning...
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