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Post by domh245 on Oct 30, 2014 14:24:18 GMT
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Post by domh245 on Oct 30, 2014 10:57:19 GMT
From casual observation, unless there is disruption, the last 2 numbers of the NR headcode will match the last 2 numbers of the LU reporting number, so for example 2I76 is train 76. I think the first number just cycles through and then repeats the cycle. Today, a quick look reveals there will be 13 trains running under the headcode 2I76 at wimbledon. Using a website such as this: www.opentraintimes.com/maps/signalling/WI_3 is quite useful when you know this info, as you can look in advance what platform you need to dash towards (or if you are arriving into wimbledon, what side of the train to get off from!) When the service is disrupted, the signaller appears to just assign the trains the next headcode that they would have been expecting to go onto NR metals, so if a train is running out of sequence, trains that ended up getting ahead of it would be mis-described.
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Post by domh245 on Oct 30, 2014 10:47:49 GMT
I think they only sound noticeably different because of the ways in which the motors are controlled. 92TS use Gate Turn-off Thyristors, which give out a little pulses of current to drive the motor, in a similar way to the class 319, hence the droning noise when they leave the station. 73TS use a camshaft (Rotary pneumatic camshaft I think?) so there is effectively no noise from the control, and just the noise of the motor itself.
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Post by domh245 on Oct 30, 2014 10:43:42 GMT
I think that the term UTO "Unattended train operation" is the currently used term, but I will admit, NOPO does sound better.
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Post by domh245 on Oct 28, 2014 22:22:56 GMT
A quick google has suggested that when lubrication oils are burnt in a diesel engine, they tend to give a blue smoke. White smoke is because of unburnt fuel getting through into the exhaust, which as suggested earlier, is likely because of injectors not working, incorrect timing, or bad cylinder compression, the latter of which could be because of leaking or broken valves, cylinder wear, or some other possible factor. Whether or not the smoke is white or blue is a different matter. To my eye, there does seem to be a slight blue hue to it.
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Post by domh245 on Oct 28, 2014 17:47:33 GMT
I have observed the "All Stations" phenomenon on a District S7 in the sidings at Parsons Green during disruption, after it had cycled through a number of different display options. Is that something that S stock do, when they realise they are in a siding and are being setup, do a self test. Is that the "maintenance" test Dstock7080 is referring to?
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Post by domh245 on Oct 24, 2014 17:58:51 GMT
ISTR an incident around Uxbridge where an S and an A wouldn't couple. I think it is documented early in the s stock delivery and intro thread
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Post by domh245 on Oct 23, 2014 18:06:58 GMT
Or it could be the fact that we are now well into autumn, and the weather has been rather cloudy of late?
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Post by domh245 on Oct 23, 2014 18:05:22 GMT
Within the timeframe I can remember, it was always the case that they would stop in the same place, the obvious exception being Wimbledon, where the C stock appeared to stop short of the D stock by about 1 car, but this was so that only one set of monitors and TRTS plungers would be needed. I can't remember any other variation in the stopping marks.
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Post by domh245 on Oct 17, 2014 19:47:03 GMT
If I remember correctly, there are quite a few metro system, across the world that utilise women only carriages. For the most part they are present because of sexual harassment, famously in japan. I think that we can say that we don't have that sort of problem as much in london, or the UK.
And as some have hinted at above, equality doesn't mean positive discrimination! Who else would be in favour of "blokes hour" to become a show on radio 4 - a bunch of men come on and talk about blokey things, like BBQs, DIY, and Beer? No doubt that some people would be up in arms about it though
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Post by domh245 on Oct 15, 2014 19:45:33 GMT
You could have a look at carto-metro. Light Rail crossings are shown in blue, and heavy rail in red. It does seem to be public roads only though, as some of the above mentioned, mainly those on private roads, such as neasden, aren't shown carto.metro.free.fr/cartes/metro-tram-london/
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Post by domh245 on Oct 9, 2014 18:38:33 GMT
To my eye, it looks like someone has taken the concept of the borismaster and forced it upon tube stock. It looks nice, and isn't in itself a bad thing, but hopefully we won't end up with something entirely like the borismaster (overpriced, unnecessary, and semi-functional). It's also worth bearing in mind that this is a designers rendering, the production jobs will likely look a bit different
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Post by domh245 on Oct 8, 2014 18:41:12 GMT
Would the use of an S stock in filming still have required the usual extra lamps that they have in the cab? I'd imagine they would, but perhaps to a lesser extent. Looking forward to it, although its a shame that there probably won't be any forum regulars in the cab driving!
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Post by domh245 on Oct 2, 2014 21:13:32 GMT
My understanding is that through a rather convoluted system, the thames turbos will make their way down towards the west country, with the sprinters there making their way up north. The 315s were originally earmarked for the Valley lines in south wales, but with the delays on the great-western electrification, it seems to have gone a bit quiet! As for new DMUs, there is an issue in that new build DMUS have to be compliant with some new EU regulations, which essentially means that the engine wouldn't be able to go underfloor without a very high floor, or you could spend lots of money on a new engine which wouldn't see all that much use outside of the few trains in the UK on which it would be used!
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Post by domh245 on Sept 30, 2014 5:57:59 GMT
No idea why, but I'm thinking the main for A is bank A1 is the view from Greenwich park?
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Post by domh245 on Sept 28, 2014 11:39:53 GMT
Blimey! I think the answer to your questions are no and no! We don't even know which units will be the first to go, let alone the last! Of course some of us will have favourites which we will want to see soldiering on right till the end (cough cough 7080!) but I suspect that until we get into the last week of withdrawals proper, we won't know which will be the lucky units
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Post by domh245 on Sept 27, 2014 8:31:00 GMT
On the 72/73 stock is a case of depressing the CTBC. On other stocks you have to twist the handle through 90 degrees
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Post by domh245 on Sept 26, 2014 17:59:19 GMT
What about west ruislip to Epping? Even though the train goes through central London, running across north London probably won't be that easy! But might this be a contender?
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Post by domh245 on Sept 25, 2014 17:12:05 GMT
Indeed, the D prefix in the WTT means that the train should ideally be formed of at least 1 de-icing unit. Those prefixed with a C in the rolling stock working part at the top are formed of S7s, but until the district goes fully S stock, I suspect they shall remain prefixed C as a throwback to the good old days, mainly because running a D stock in it's place would be detrimental to the service.
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Post by domh245 on Sept 24, 2014 15:45:11 GMT
D is the cab of a Mk1 'slammer' and the only way that such a cab would be on topic would be if it were the 4-TC set?
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Post by domh245 on Sept 23, 2014 18:44:33 GMT
I think that 5701 went to Greenwich, certainly looks like 5701 in the video. I think it has gained a new 'authentic' paint scheme, which is rather saddening
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Post by domh245 on Sept 21, 2014 19:22:54 GMT
I'm not sure that 45029 would be able to visit aldwych without some major re-engineering.
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Post by domh245 on Sept 21, 2014 17:26:48 GMT
Would this proposed dining service not be better on heritage trains (eg. steam on the met) rather than a weekday service? Certainly would wreak havoc with catering tickets on PAYG, unless it is a buffet service where you pay by oyster?
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Post by domh245 on Sept 19, 2014 19:21:44 GMT
I thought that what happened was a clever overlay of the new and existing ATO systems with common interlocking. This allowed the 67 to keep on running with it's existing equipment whilst the 09 stock ran on it's equipment. It's why there was a point when the 67 became banned north of Seven Sisters, because the existing ATO equipment was removed. Why would LU spend money upgrading a train about to be removed from service - it seems a little odd
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Post by domh245 on Sept 18, 2014 21:57:19 GMT
+e (maths banter !)
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Post by domh245 on Sept 18, 2014 6:34:30 GMT
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Post by domh245 on Sept 17, 2014 16:41:34 GMT
Why would they need to go over to electric? Surely you could leave them as they are, rather than faffing around with what is essentially a rebuild beneath the Solebar. Remember that this would also be a rebuild of a train that is coming up for retirement, and in the case of the 142s, is due to be scrapped in or around 2019. A More realistic barrier rather than the fact that they are diesel is that they are desperately needed to operate and strengthen services on the many unelectrified lines in the north - not to mention that if a 142 turned up at chesham, most passengers would grab their briefcases and run away screaming towards their cars
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Post by domh245 on Sept 15, 2014 6:37:56 GMT
I think that the 2 screens are interchangable - ie. if one develops a fault, you could change them over so that you could still see the platform. The controls of the TMS are controlled by the little buttons to the bottom left of the screen / the flat bit on the LHS of the chair
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Post by domh245 on Sept 14, 2014 20:19:22 GMT
Are these Ear Protectors little in-ear foam ones, or are they the huge on-ear ones? I would hope that they don't cancel out the noise of any alarms or radios in the cab! I suspect that more likely it is a case of some management people going around with a sound monitor, deeming that it is unsafe for drivers to be exposed to these high levels of noise for prolonged periods on a daily basis, and so EDs are starting to be issued. Army Bands for example have now been issued with in-ear foam protectors for a while now because of the prolonged noise levels
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Post by domh245 on Sept 14, 2014 18:59:34 GMT
They do remain the same number all day, but the trains are entered into the depot working columns in chronological order - so if you look further, you'll see that the finish for train 357D is 0122 - this particular one seemingly being the first one out and the last one in on weekdays.
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