|
Post by capitalomnibus on Aug 1, 2023 15:06:11 GMT
|
|
|
Post by southlondonbus on Aug 1, 2023 16:23:04 GMT
I don't know why but the shape of them just reminds me of the 1940 stock on the Waterloo & City line.
|
|
|
Post by capitalomnibus on Aug 1, 2023 22:12:43 GMT
I don't know why but the shape of them just reminds me of the 1940 stock on the Waterloo & City line. Oh dear, and those were some real ugly trains.
|
|
|
Post by southlondonbus on Aug 2, 2023 4:34:28 GMT
I don't know why but the shape of them just reminds me of the 1940 stock on the Waterloo & City line. Oh dear, and those were some real ugly trains. I think its the little windows.
|
|
|
Post by southlondon413 on Aug 2, 2023 19:01:02 GMT
Oh dear, and those were some real ugly trains. I think its the little windows. The little windows really bother me, like I get big windows add weight etc but at the same time they add a feeling of openness and make you feel less contained. Fun way to remind you you’re in a tin can metres underground.
|
|
|
Post by matthieu1221 on Aug 4, 2023 10:59:50 GMT
I think its the little windows. The little windows really bother me, like I get big windows add weight etc but at the same time they add a feeling of openness and make you feel less contained. Fun way to remind you you’re in a tin can metres underground. Apparently the small windows are less to do with weight but more with minimising the greenhouse effect from them which would require more intensive AC (and associated extra ventilation shafts eventually).
|
|
|
Post by Dstock7080 on Aug 4, 2023 15:05:02 GMT
Also the air-conditioning ducting from under the floor to ceiling height has to be placed between the windows.
|
|
|
Post by capitalomnibus on Aug 5, 2023 13:51:10 GMT
The little windows really bother me, like I get big windows add weight etc but at the same time they add a feeling of openness and make you feel less contained. Fun way to remind you you’re in a tin can metres underground. Apparently the small windows are less to do with weight but more with minimising the greenhouse effect from them which would require more intensive AC (and associated extra ventilation shafts eventually). I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC
|
|
|
Post by SILENCED on Aug 5, 2023 14:23:01 GMT
Apparently the small windows are less to do with weight but more with minimising the greenhouse effect from them which would require more intensive AC (and associated extra ventilation shafts eventually). I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC I think it is more of the dispersal of the heat that AC generates. Not a problem on NR where it disperses into the atmosphere, where as on the Underground, the dispersed heat will remain in the system unless removed by ventilation systems. Last thing we need is nice cool trains, whilst everyone on the platforms, walkways sweats like a pig and dehydrates. Think windows are to reduce heat radiating in whilst on the surface, so are that little bit cooler when they go sub surface. If I'm wrong sure Poster will correct me.
|
|
|
Post by capitalomnibus on Aug 5, 2023 14:44:15 GMT
I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC I think it is more of the dispersal of the heat that AC generates. Not a problem on NR where it disperses into the atmosphere, where as on the Underground, the dispersed heat will remain in the system unless removed by ventilation systems. Last thing we need is nice cool trains, whilst everyone on the platforms, walkways sweats like a pig and dehydrates. Think windows are to reduce heat radiating in whilst on the surface, so are that little bit cooler when they go sub surface. If I'm wrong sure Poster will correct me. But then it makes no sense, why did they not do this on the S stock, especially when they are out on the surface also.
|
|
|
Post by Eastlondoner62 on Aug 5, 2023 14:53:21 GMT
I think it is more of the dispersal of the heat that AC generates. Not a problem on NR where it disperses into the atmosphere, where as on the Underground, the dispersed heat will remain in the system unless removed by ventilation systems. Last thing we need is nice cool trains, whilst everyone on the platforms, walkways sweats like a pig and dehydrates. Think windows are to reduce heat radiating in whilst on the surface, so are that little bit cooler when they go sub surface. If I'm wrong sure Poster will correct me. But then it makes no sense, why did they not do this on the S stock, especially when they are out on the surface also. It's because the S Stock have a larger body:window ratio. There's a lot more space within an S Stock train to disperse any heat that will come in through the windows alongside the A/C that they have. The new Piccadilly Line trains are a lot smaller so will heat up a lot faster if they had bigger windows than the S Stock would do.
|
|
|
Post by SILENCED on Aug 5, 2023 15:37:49 GMT
I think it is more of the dispersal of the heat that AC generates. Not a problem on NR where it disperses into the atmosphere, where as on the Underground, the dispersed heat will remain in the system unless removed by ventilation systems. Last thing we need is nice cool trains, whilst everyone on the platforms, walkways sweats like a pig and dehydrates. Think windows are to reduce heat radiating in whilst on the surface, so are that little bit cooler when they go sub surface. If I'm wrong sure Poster will correct me. But then it makes no sense, why did they not do this on the S stock, especially when they are out on the surface also. But they operate on sub surface lines which are far easier to ventilate. Some of the 'underground' sections are exposed to open air. Deep level line present a far bigger problem. It is all to do with the dispersal of heat, maybe I have the reasoning wrong. Think greenhouses, glass keeps and retains heat.
|
|
|
Post by Dstock7080 on Aug 5, 2023 15:56:14 GMT
I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC National Rail trains and S Stock has the air-conditioning units on the roof, 2024 Stock must have them under the floor and ducted to the roof for distribution.
|
|
|
Post by capitalomnibus on Aug 5, 2023 21:12:44 GMT
I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC National Rail trains and S Stock has the air-conditioning units on the roof, 2024 Stock must have them under the floor and ducted to the roof for distribution. Which is why your explanation makes more sense of the ducting pipes going between the windows to the roof is the reason for the small windows.
|
|
|
Post by matthieu1221 on Aug 6, 2023 3:09:07 GMT
Apparently the small windows are less to do with weight but more with minimising the greenhouse effect from them which would require more intensive AC (and associated extra ventilation shafts eventually). I very much doubt this. After all, because trains on the national rail network that has air-con does NOT have small windows. I would go even one further and say the same for the S-stock which goes underground and outside and has big windows. I would not say the S-stock has intensive AC This article might interest you. Has a much more in depth explanation into the methods used to reduce excess heat aside from AC related issues. The gist is that all was done to minimise heat produced by the train (smaller windows are a given... 1992 stock is lovely but a greenhouse and would require the AC being blasted to keep the carriage cool, coasting and better braking) as heat dispersed into the tunnels also heats up the platforms that passengers wait on. Also mentions how any extra tph may eventually require new ventilation shafts.
|
|