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Hi Bernard,
The first issue of the online magazine is excellent, so keep up the good work and pass my congratulations to the team. Landed with a thump on my digital doormat though, 70+ megabytes - wow!
I enjoyed your article which was a very thoughtful survey of what's available track-wise for N scale. It was timely and useful for me as I'm currently building my first US outline layout here in the UK, having worked in 2mm finescale since 1982. I've chosen to use Atlas track in preference to the home produced Peco product for one important issue- it actually looks like US railroad track.
For me, the scene I'm modelling has to look right, both with and without trains. Peco track is actually a compromise which represents neither British or US track, if anything, it looks like the type of mainline track used in Europe. I find it instantly recognisable for what it is and a jarring element in the visual side of N scale, particularly their use of code 80 blades in code 55 pointwork.
My guiding priciple is "don't model other models, model what you see in real life", or in my case for the US project, photos in books, magazines and online. A magnifying glass is your friend here.
In the past, I've always handlaid my track, both in standard and 3ft narrow gauge, using 2mm Scale Association components but for this new layout, I've chosen to use ready to lay track, so I'm on a bit of a learning curve, having never used it before.
The 2mm finescale standards date back to about 1960, having been laid down by a pioneering father & son combination, "Pop" & Bert Groves. Both track and wheels are carefully matched with tight but achievable tolerances. This is absolutely essential. The Association supplies a good series of materials for building track and a private consortium of members has produced "2mm Easitrac", an injection moulded sleeper (tie) base for chaired Bullhead rail. This is proving very popular and a matching pointwork system is under development. It's worth mentioning that we work to 2mm/foot scale (1:152) on 9.42mm gauge track.
N by contrast has been riot of variation over the years but fortunately, now shows good signs of settling down to the NMRA standards. The locos I've acquired for my Rock Island project will nearly all run on the Atlas track without modification but I have had to do a little regauging here and there, combined with some reduction of the flanges on one or two older locos (skimmed down in a lathe). I've got a mix of Bachmann, Life-Like, Kato and Atlas locos, chosen specifically to match my Rock Island transition era theme. Rolling stock gets Micro-trains low profile wheels for now but I may change to metal wheels later on. So far, this all looks to work pretty well in conjunction with the Atlas track.
I agree that Code 40 rail would preclude the use of spikes or moulded spike heads. Soldered construction is very tolerant and would even allow the use of N scale pizza cutters provided they were no deeper than 35 to 38 thou. Having looked at and tried samples of ME code 40 flex-track, I'm not sure I'd be confident in committing to use it on a layout, the spike heads look too poorly moulded on my examples.
As for the Aspen track, people who have used it for Nn3 report that it suffers from degradation over time. It's nice looking stuff but the glue bond between the ties and rails breaks down to the point where you're left with the raw components. Not good, unfortunately.
I've written a bit on N scale narrow gauge track here: http://www.zen98812.zen.co.uk/track.html and the Nn3 handbook (available from Republic Loco Works) has a lot more information for NG fans that's also relevant to standard gauge.
Well that's probably enough to be going on with. Perhaps I need to "blog" progress on my US layout but I'm not very good at keeping up with things like that. I do have some photos online at: http://markfielder.fotopic.net/c1540498.html and here's also my British outline layout http://markfielder.photobook.org.uk/c97460_1.html
bye for now
Mark Fielder