Going U-shaped?

Any questions about designing a model railway layout or problems with track work.
whynot
Posts: 1977
Joined: Fri Jul 09, 2010 3:37 pm
Location: Nottingham

Going U-shaped?

Postby whynot » Thu Sep 29, 2011 12:05 pm

To lengthen the run between my two 5' x 18" boards, I'm considering adding 6' x 2' at one end for a U-shape. Sort of like this:

Image

The track exits both the existing boards about 6" from the outer edges. Can I fit a passing loop on the "new" board? I assume would have to be curved points? I guess could accommodate c. 20" radius - will flexitrack go down to this, with points (which I assume are a larger radius)?

Any way I can calculate this or is it down to templates and full size drawing?

Thanks!
dave j
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baldrickbr
Posts: 44
Joined: Mon Jun 06, 2011 11:58 am

Re: Going U-shaped?

Postby baldrickbr » Thu Sep 29, 2011 1:20 pm

Hi
You will have to use the Setrack or Hornby curved points, but then radius of over 19 inches is available. 3rd radius curves would be fine. The shorter loop would be about 5 feet long.

Using Streamline points 2 feet is not enough space, as you would end up with a tiny passing loop.

Good luck

whynot
Posts: 1977
Joined: Fri Jul 09, 2010 3:37 pm
Location: Nottingham

Re: Going U-shaped?

Postby whynot » Thu Sep 29, 2011 2:14 pm

Thanks. If, as I think, setrack points are all insulfrog, then not a starter! Back to the drawing board....
dave j
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AlanBrady
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Location: Dunboyne, Ireland

Re: Going U-shaped?

Postby AlanBrady » Thu Sep 29, 2011 2:26 pm

I'm not really sure, but is something like this what you mean. The blue rectangle is 6x2. Curved point, 2 double 2nd R curves, standard 2nd R on top, 2nd R half curve on bottom and then same/opposite on the other side.

Alan.
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whynot 6x2.jpg
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whynot
Posts: 1977
Joined: Fri Jul 09, 2010 3:37 pm
Location: Nottingham

Re: Going U-shaped?

Postby whynot » Thu Sep 29, 2011 2:54 pm

Well, yes, except that I assume that the points in that are not Peco Streamline and are thus insulfrogs/dead frogs - which I do not think give acceptable running for small RTR locos!

Thanks.
dave j
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baldrickbr
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Joined: Mon Jun 06, 2011 11:58 am

Re: Going U-shaped?

Postby baldrickbr » Thu Sep 29, 2011 4:01 pm

Using the smallest electrofrog points and flextrack, you can just squeeze in 17 inch radius giving just over 3 feet of passing loop, by turning 45 degrees then an SLE-91.

Haven't worked out how to load jpg files yet. Hope this helps.

Ex-Pat
Posts: 1715
Joined: Tue Feb 08, 2011 10:51 pm
Location: Dundalk Ireland

Re: Going U-shaped?

Postby Ex-Pat » Thu Sep 29, 2011 4:46 pm

If you're not already aware of it you can plan/check things by downloading Peco's own templates, well worth checking - see:

http://www.peco-uk.com/page.asp?id=pointplans

You can then make cardboard templates of the points to see what will, or will not, fit

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thebritfarmer
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Re: Going U-shaped?

Postby thebritfarmer » Thu Sep 29, 2011 4:57 pm

Is there anywhere that has the straight, curved or flextrack templates kind of pointless to have just the turnouts isn't it?
All Aboooooard !!

Ex-Pat
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Re: Going U-shaped?

Postby Ex-Pat » Thu Sep 29, 2011 5:57 pm

thebritfarmer wrote: kind of pointless to have just the turnouts isn't it?


Nice pun!

The templates are, I'm fairly sure, aimed at Flexi-track users rather than Set-track, and therefore by the nature of Flexi there is no need for further templates. You could always approach Peco of course.

whynot
Posts: 1977
Joined: Fri Jul 09, 2010 3:37 pm
Location: Nottingham

Re: Going U-shaped?

Postby whynot » Thu Sep 29, 2011 7:35 pm

Thanks all! L might be a better letter than U....
dave j
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