Deleted
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Post by Deleted on Nov 13, 2005 10:07:23 GMT
On SB's DVDs, you notice that in the tunnel sections, it is pitch black - surely musn't the headlights give off SOME illumination?? Or was it just the camera recording that darkened them (somehow :
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Post by setttt on Nov 13, 2005 10:25:28 GMT
I could be wrong, but I think that the main purpose of the headlights is not to illuminate things, but to show that the cab has been opened-up.
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Post by Tomcakes on Nov 13, 2005 12:09:06 GMT
AFAIK it's more to show where the train is to people on the track rather than see the track from the train. After all as long as you can see the signals you're OK!
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Post by Deleted on Nov 13, 2005 17:32:04 GMT
AFAIK it's more to show where the train is to people on the track rather than see the track from the train. After all as long as you can see the signals you're OK! Not always the case. A mate of mine recalled a story where a friend of his was driving along, went round a corner and found a sleep accross both running rails, without headlights you wouldnthav been able to see it! Yes, headlights did start out to show the front of the train but have now developedto also show the driver the road ahead.
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Chris M
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Post by Chris M on Nov 13, 2005 19:07:21 GMT
Why is it that commonly only one headlight is on? See for example this photograph.
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Colin
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Post by Colin on Nov 13, 2005 20:00:42 GMT
On SB's DVDs, you notice that in the tunnel sections, it is pitch black - surely musn't the headlights give off SOME illumination?? Or was it just the camera recording that darkened them (somehow : They are marker lights to show the direction/front of the train only. Some are good at illuminating the road ahead - but it's not a requirement. Why is it that commonly only one headlight is on? See for example this photograph. ChrisM - This is an LUL thread (forum even), and they are not LUL stock!! ;D Anyway, I can see 3 lights on each train from where i'm sitting.
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Post by setttt on Nov 13, 2005 20:09:04 GMT
Why is it that commonly only one headlight is on? See for example this photograph. Modern NR passenger stock (there are exceptions) only ever displays one headlight (bright, inside) and also a marker light (less bright, outside) when the train is in passenger service. In other words, it's the headcode.
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Post by doubletrigger on Nov 13, 2005 21:53:40 GMT
All NR stock must have illuminated 2 marker lights at all times, where fitted. Some older locos or older stock may only have the one, which is acceptable.
High intensity headlights are purely optional and where fitted you will find there are three settings in which they can be used.
Not at all Day mode (usually secondman side I think) Night mode (Driver side)
The Marker lights have nothing to do with lighting up the way ahead of you, they are purely so anyone on or near the line can see you, chances are you won't see them until very close! In the night they have little effect, especially when you are doing 125 mph, it's up to your eyes and brain to figure it out.
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Colin
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Post by Colin on Nov 14, 2005 0:19:37 GMT
Double Trigger raises a good point there - unless track workers have torches or proper lighting, they cannot be easily seen in the dark. And that is despite their all over HI-VIZ orange clothing. On the 3 or 4 occasions I've come across them [without portable lighting], it's been less than a trains length when they 'appear'
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Post by stanmorek on Nov 16, 2005 22:22:02 GMT
Double Trigger raises a good point there - unless track workers have torches or proper lighting, they cannot be easily seen in the dark. And that is despite their all over HI-VIZ orange clothing. On the 3 or 4 occasions I've come across them [without portable lighting], it's been less than a trains length when they 'appear' That's interesting Colin I don't doubt you but track safety training tells you that, during traffic hours, track is off limits in the darkness. However, I know of an incident where the current was switched off in one section at engineering hours and the TAC had given access to track workers. However, two trains turned up and in the next section and stopped at the current gap even though their section was published to go off earlier.
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Colin
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Post by Colin on Nov 17, 2005 3:24:07 GMT
That's interesting Colin I don't doubt you but track safety training tells you that, during traffic hours, track is off limits in the darkness. Like the saying goes, rules are made to be broken ;D ;D A couple of those were on the Wimbledon branch, so Network Rail rules (they can go on the track anytime 24/7), the others were because of track circuit failures - so the Technical Officers/AET's (what does AET stand BTW?) were at the lineside boxes in the cess. A warning at the station before would've helped in all cases
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solidbond
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Post by solidbond on Nov 17, 2005 6:55:49 GMT
AET = Automatic Equipment Technician - now just T/O Technical Officer ;D
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Post by Deleted on Nov 19, 2005 7:49:54 GMT
if it was on the wimbledon branch west of putney bridge that it would of been AMEC's version of a T/O normally known on Network Rail as a S&T Techincian (Signalling & Telecomunications)
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Post by Deleted on Nov 19, 2005 7:51:27 GMT
Also i believe when metronet first took over we were going to be called FART's (Fast Action Response Technician) but that soon died a death when we found out about that
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