Phil
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Post by Phil on Oct 7, 2005 18:23:28 GMT
Typical press over-reaction I'm afraid. Assuming we are still talking about faulty tripcocks (as mentioned elsewhere on the forum) there is a danger in some circumstances, and drivers are right to take action since nothing is being done, but to scare the general public about faulty braking systems is just downright irresponsible. The only danger is if a driver passes a signal at danger [for whatever reason] and the tripcock is merely a driver aid.
Sorry to be hardline about this, but this was the whole fallacy raised after Southall (GW) and Ladbroke Grove (Thames Trains). The bottom line is that a driver should be aware of a red stick and STOP.
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Phil
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Post by Phil on Oct 6, 2005 10:03:50 GMT
The Antipodean has it correct down to the finest detail: impeccable.
All I can add is that I used it daily from Finsbury Park to Old Street in the early 60s, and was very unchuffed when they cut it back to Drayton Park and we had to use a bus link. ****** pain that was!
Once the Vic opened it was much easier: cross platform change at FP to Vic, change again at Highbury to Northern City,- no problems!
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Phil
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PA's
Sept 25, 2005 19:12:08 GMT
Post by Phil on Sept 25, 2005 19:12:08 GMT
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Phil
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Post by Phil on Sept 21, 2005 15:53:07 GMT
Surely irrelevant: does not every train pass a tripcock tester as it leaves the depot each morning??
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Phil
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Post by Phil on Oct 9, 2006 18:27:06 GMT
So you ressurected a thread that is over a year old just to post some stuff about what you can do in BVE? I think you need to have a read of the forum charter. Except, of course, MSO, that he is a new member and has not had a previous chance to contribute to this. Better what he has done than start a new thread. And resurrection (note spelling) is nothing new ;D ;D Tolerance young man....... Now, if you'd said that DotMatrix should have posted it in the SIMs board under BVE, now that's a different matter entirely!
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Phil
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Post by Phil on Sept 13, 2005 9:03:08 GMT
Well they would certainly have no problem getting to 60 - 70 mph, so i wuldnt be surprised if they could get to 90mph. You have forgotten about the balancing speed of motors, which is designed in. Once you reach that (whatever it is) it is scientifically impossible to exceed it unless it is forced say by descending a STEEP gradient
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Phil
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Post by Phil on Sept 12, 2005 21:05:22 GMT
Who the hell is going to confess to that on this forum ikea?
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Phil
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Post by Phil on Sept 16, 2005 18:09:34 GMT
Thanks Q8- as an ex-(student) conductor I now see what you're on about. Mind you, it was better in the 60s wasn't it?
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Phil
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Post by Phil on Sept 7, 2005 20:54:51 GMT
NUMBERS? could only come from an antipodean
As for numbers, how does 2-1 with 1 to play sound? ;D ;D ;D ;D
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Phil
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Post by Phil on Sept 6, 2005 14:05:46 GMT
Basically because all the (pre-nationalisation) railway companies could not find a way to block it, as they did with all the other schemes to get tube (and SS) south of the Thames- we are talking 1920s or so here. Nothing could be done until changes brought the Vic to Brixton in the early 70s. But why the name Northern? someone else's turn to answer that
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Phil
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Post by Phil on Jan 29, 2008 13:59:44 GMT
You can get rid of it (the noise) by grinding. .......except in the cases where the noise is a whole lot worse after grinding (even though the ride is better). Again, nobody seems to know why this sometimes happens.
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Phil
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Post by Phil on Nov 17, 2007 10:58:31 GMT
C'mon green line guys!!! LBL has thrown down the gauntlet and the replies so far have been....shall we say... anaemic, including from the green line t/ops themselves. Where's all the (good-natured) inter-line rivalry gone? *sits back and waits*
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Phil
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Post by Phil on Feb 24, 2007 10:40:00 GMT
Indeed, something most of us don't even think about, but engineers get paid to consider.
But, taking sk's figures for emergency braking, this gives a distance of just over 230ft for an emergency stop from 30mph: is it really that far? I'm sure I've seen'em pull up sharper when someone went down in front of a train (accident fortunately not jumper, and train stopped before it hit him). Or is 1.3m/s2 maximum service, with a bit extra if the handle is dropped?
1.3 is only 1/8 'g': considering fairground rides go up to about 4'g' in places I'd have thought the idea of tipping over a few standees to save lives in an emergency is a good cost/benefit ratio.
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Phil
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Post by Phil on Sept 4, 2006 8:04:57 GMT
Admin comment
Darren - are you sure this is in the right thread? If it really is 67ts you want info on, it would be better in the Victoria line thread. But if it's Bakerloo stock (non-ATO) then we are talking 72ts not 67......
Let us know and we'll move it if necessary.
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Phil
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Post by Phil on Jul 24, 2006 20:07:33 GMT
Sorry, call me thick or something, but I fail to see how a one-under can possibly be laid at Metronet's door.
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Phil
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Post by Phil on May 2, 2006 22:10:48 GMT
I've just caught up with that map. I wouldn't worry about its accuracy: the extra stations mentioned make up for the ones left out between Finsbury Park and Walthamstow!!!
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Phil
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Post by Phil on Apr 25, 2006 10:36:15 GMT
And apart from the lack of notches, the principle is identical to that taught for vacuum brakes on DMUs. Come in on a steady application, ease off a bit if you need to, throw it all off as you come to a stand, then make a light application once stationary.
All it requires is to put enough in to start with: as ADW says it is far easier to do than to describe. Second nature puts it nicely
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Phil
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Post by Phil on Apr 21, 2006 19:16:26 GMT
This is the sort of situation where some human input gives a better ride than contemporary automation. Seeing as the brake notches on the controller are 'live' in ATO mode (on the 67s), perhaps the system could be adjusted so that the ATO cuts out a few yards from the end of the platform, leaving the driver to bring the train to a smooth stop? No idea if that would be possible - just a thought. But the vigilance required of a driver (if, as said by MA, it was technically possible) would be even greater than full manual: it would also increase stopping times and negate the whole point of ATO. Sensible idea in theory, but a shedload of practical problems. However, if the system was allowed to go from (the equivalent of) notch 2 to notch 1 in the last couple of metres, the effect would be back to that of stopping on a rising brake (comfort) yet still maintain all safety features. Probably less to modify too.
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Phil
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Post by Phil on Feb 21, 2006 12:27:34 GMT
Why not use it as your avatar?
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Phil
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Post by Phil on Dec 19, 2005 19:38:06 GMT
Considering the ambitious use of technology for the time they were built,67TS have been quite reliable,it's only old age that's bringing down the reliability figures now. I completely agree with you there. For 1960s technology, both the 67TS and the Victoria Line's ATO system have worked very well. RIP Concorde - for the same reason!!
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Phil
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Post by Phil on Nov 4, 2005 18:13:19 GMT
I'm with MA on this - who said T/Op coshed it? It was almost certainly in auto. Scare stories do not help. Undoubtedly there was a defect but exaggeration obscures the problem, not amplifies it.
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Phil
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Post by Phil on Nov 4, 2005 11:41:21 GMT
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Phil
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Post by Phil on Nov 2, 2005 22:26:05 GMT
mutters Wouldn't have happened with EDO...would it?
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Phil
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Post by Phil on Sept 22, 2005 9:14:51 GMT
Ta chris- I couldn't have put it better myself (or more longwindedly)
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Phil
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Post by Phil on Sept 21, 2005 13:21:33 GMT
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Phil
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Post by Phil on Jan 11, 2006 12:13:47 GMT
All this has been discussed in detail on another thread recently: colin will post the link when he reads this......
but basically the reverse in sidings is quicker due to
1.No conflicting passenger movements
2.Fewer conflicting train movements.
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Phil
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Post by Phil on Feb 5, 2007 10:48:29 GMT
Don't forget that until recently (and perhaps still now) you could buy home glass-etching kits to etch your numberplate onto the car windows and headlights as a theft deterrent..... It came as a paste embedded onto a sellotape-type material: can you still get it? It was definitely hydrofluoric acid.
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Phil
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RIP 23-Oct-2018
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Post by Phil on Feb 4, 2007 7:55:05 GMT
Yes, and when the little darlings got burnt by their own acid they'd sue the naughty magazine who put the ideas into their poor little heads......
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Phil
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Post by Phil on Apr 15, 2007 16:07:18 GMT
One intersting fact about Regents Park - when it re-opens it won't have a ticket office. Just machines. How does that work then? Is it just an experiment coz I can forsee all sorts of problems.
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Phil
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Post by Phil on Aug 7, 2006 13:04:18 GMT
Sorry: as to the last, if you speed up a fan you actually WARM the air up!! (It feels cooler simply because the air is moving).
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