I have a few each of boxes containing six pieces of Atlas curved N Gauge track.
Some of the boxes are marked
"Atlas 6-Sections 9 1/4" Radius Track #2510".
The others are marked
"Atlas 6-Sections 11" Radius Track #2520".
It looks like 3 sections of either the 9 1/4" Radius Track, or 3 sections
of the 11" Radius Track form a quarter circle, but maybe not quite.
Does anyone know if these sections are made so that 12 sections is a
complete circle?
If it matters, these tracks were bought probably in the early 1980's.
--- Joe
fl@liner - 24 Apr 2007 12:01 GMT
In article
<none-2304072102080001@dialup-4.232.132.215.dial1.losangeles1.level3.net>,
none@given.com says...
>I have a few each of boxes containing six pieces of Atlas curved N Gauge track.
>
[quoted text clipped - 15 lines]
>
>--- Joe
Joe,
Atlas n scale snap-track is listed at:
http://www.atlasrr.com/Trackmisc/ncode80.htm
Its been so long since I've messed with the sectional track, I don't remember
whether it requires 12 or 16 pieces to form a circle. Just join three ( or
six) sections together and see what you get.
Try to avoid the 9 3/4" stuff if you can; it'll cause problems with 6 axle
diesels and long freight and passenger cars.
fl@liner
gl4316@yahoo.com - 26 Apr 2007 09:57 GMT
> Try to avoid the 9 3/4" stuff if you can; it'll cause problems with 6 axle
> diesels and long freight and passenger cars.
With long freight and passenger cars yes.
However, I have some very tight radius N scale track from Europe (about
7.5 inch radius) and my 0-6-0 steam locomotives operate on it just fine.
I can't see how the 6 axle diesel trucks would have trouble on this since
they have an even shorter wheelbase than my steam 0-6-0s.

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Puckdropper - 26 Apr 2007 14:12 GMT
>> Try to avoid the 9 3/4" stuff if you can; it'll cause problems with 6
>> axle diesels and long freight and passenger cars.
[quoted text clipped - 6 lines]
> on this since they have an even shorter wheelbase than my steam
> 0-6-0s.
Your 0-6-0 has a lot more room to pivot than your 6 axle diesels. The
two trucks will only move so far before they can't take the curve any
more.
Puckdropper

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RobertVA - 24 Apr 2007 15:42 GMT
> I have a few each of boxes containing six pieces of Atlas curved N Gauge track.
>
[quoted text clipped - 15 lines]
>
> --- Joe
On the atlas site code 80 curved sections are listed as requiring 12
sections to complete a circle except for the 19 inch radius which
requires 24 sections. The code 55 is listed as requiring 16 sections to
complete a circle, except for 30.609" radius, which requires 32
sections, and 71" radius, which requires 44 sections and a 4 1/4" straight.
A table is at the bottom of the track FAQs page:
http://www.atlasrr.com/layoutfaq.htm
Joe - 24 Apr 2007 17:23 GMT
> > I have a few each of boxes containing six pieces of Atlas curved N Gauge track.
> >
[quoted text clipped - 24 lines]
> A table is at the bottom of the track FAQs page:
> http://www.atlasrr.com/layoutfaq.htm
Thank you Robert and fl@liner, that answered my question. And, yes, where
I wrote 9 1/4", I should have written 9 3/4".
--- Joe
Steve Caple - 24 Apr 2007 18:06 GMT
> . . . and 71" radius, which requires 44 sections and a 4 1/4" straight.
I don't mess with N scale or sectional track, but THAT'S interesting, in a
geometric sense.

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Steve
prioritycharge@hotmail.com - 26 Apr 2007 01:37 GMT
Hmm, www.atlasrr.com might help you have you looked there?
> I have a few each of boxes containing six pieces of Atlas curved N Gauge track.
>
[quoted text clipped - 15 lines]
>
> --- Joe