pidder Posted June 1, 2017 Share Posted June 1, 2017 To avoid adding unnecessarily to the very interesting thread re circuits, could someone please tell me what are "day and night lights"? I didn't realise they differed. Link to comment Share on other sites More sharing options...
walkingthedog Posted June 1, 2017 Share Posted June 1, 2017 Same as they have on cars now?? Link to comment Share on other sites More sharing options...
pidder Posted June 1, 2017 Author Share Posted June 1, 2017 But specifically, are they separate lamps, or just switched to a lower brightness? Where are they placed, presumably only on diesels. Link to comment Share on other sites More sharing options...
LMSFan72 Posted June 1, 2017 Share Posted June 1, 2017 Hi Pidder. On modern british locos there are 2 headlights at each end, a left and a right (and additionally lower intensity "marker" lights both left and right and possibly top too). The right hand headlight is turned on for day running and the left hand one is off. It is the reverse for night running. For normal running the marker lights would always be on if the headlights are on, and both head and marker only on in the direction of travel. It can vary by loco but that's the principle. Link to comment Share on other sites More sharing options...
walkingthedog Posted June 1, 2017 Share Posted June 1, 2017 Why is that? Why switch from right to left? Link to comment Share on other sites More sharing options...
pidder Posted June 1, 2017 Author Share Posted June 1, 2017 Learn something new every day. But as wtd says, why switch, the lights are just to give approach warning or, perhaps, indicate train type, not to illuminate the track ahead. Don't see the point. Link to comment Share on other sites More sharing options...
Chrissaf Posted June 1, 2017 Share Posted June 1, 2017 My analogy for switching between 'right' and 'left' for 'day' and 'night' would be car dipped headlights. At night, using the light on the left would be less likely glare into the eyes of oncoming loco drivers. During the day, the light on the right would give maximum visiblity of an approaching train to oncoming drivers. Just a possible theory..... Link to comment Share on other sites More sharing options...
LMSFan72 Posted June 1, 2017 Share Posted June 1, 2017 I also believe that the headlights are off in the yard to avoid blinding workers Link to comment Share on other sites More sharing options...
96RAF Posted June 1, 2017 Share Posted June 1, 2017 I can only recommend you get a cup of tea and a packet of biscuits and read this...https://www.rssb.co.uk/rgs/standards/GMRT2483%20Iss%201.pdfEven talks about Hazard Flashing for headlamps, so if you want prototypical accuracy then you need these as well.Rob Link to comment Share on other sites More sharing options...
pidder Posted June 1, 2017 Author Share Posted June 1, 2017 25 pages, need more than a packet of biscuits. Seriously, aren't we getting a bit OTT. I'm happy just having working lights front and rear, and coach lighting controlled with a LDR circuit. Link to comment Share on other sites More sharing options...
Augustus Caesar Posted June 1, 2017 Share Posted June 1, 2017 Whilst that document gives some info on this system of lighting for day/night running etc. it is not comprehensive. At least a quick glance through gives me that impression.I've been trying to figure out what all the differences are with this stuff for a few years now on and off and have never really found an answer.It begs the question as to how many modellers actually accurately represent this type of lighting on their layouts... or do they just have them on/off front and rear without all the detail?I've got plenty tea and a good supply of biscuits if anyone can come up with something comprehensive and which explains all this... 😀 Link to comment Share on other sites More sharing options...
pidder Posted June 1, 2017 Author Share Posted June 1, 2017 AC If you don't know, then I fear probably no one does. I'd always assumed that the model makers version of diesel lights was pretty accurate. Link to comment Share on other sites More sharing options...
Fishmanoz Posted June 1, 2017 Share Posted June 1, 2017 Can I suggest the mods move this to General where LC will see it? If anyone knows the full story, he will be the one. Link to comment Share on other sites More sharing options...
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