Subject:
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Re: 'Dog Bone' - definition
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 11 Mar 2001 03:14:30 GMT
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Viewed:
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2553 times
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In lugnet.trains, Steve Chapple writes:
> Having spent a great deal of time on the Supertrain layout, this is
> something I'm very interested in. A couple of 100' long straight
> segments with a town and one end and an industrial area at the other
> was what comprised our "main loop". I've described the layout as
> three (interconnected) loops, but that's because of how I define "dog
> bone". Is it defined simply by how it looks? Doesn't the track
> geometry come into play? The first one is what we had at Supertrain,
> but I'd only (for sure) call the third one a dog-bone, as it's the only
> one that actually loops back on itself. I might call the second one a
> dog-bone because the cross-overs _do_ cause it to cross back onto
> itself, albeit very briefly and not in the same was as the switches.
>
> Here are three layout diagrams:
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=36350
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=36349
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=36351
> Which one(s) would be defined as dog bones and why?
The definition of a "dogbone" is an oval that has been pinched in the middle
so that the two sides of it are close enough together that they look like
double track... then stretched to quite a bit longer. That's the key idea...
it could have been an oval except it got squished and stretched.
A "folded dogbone" is when you take that doubletrack and send it all over
everywhich way. As a poster elsewhere alludes, one thing to do with the
loops is hide them in tunnels (sometimes stacking them on top of each other)
My biggest HO layout was a folded dogbone with one of the reversing loops at
the very bottom inside a tunnel. It was double tracked once you got inside
the tunnel so you could stage a train (or two, it was a big loop).
Thus the answer to your question is "none" since you did not show the other
end of the trackage. It is possible that Dog2 is one, if those two sets of
doubletracks meet somewhere. Dog3 is not since it's single track once you
get out of the reversing loop. Dog1 I dunno.
But the main thing here is not to get too hung up on the terms (except as a
way to keep things clear amongst ourselves). Your layout should be designed
to maximise operating potential... not to conform to some idealised labeling
scheme.
++Lar
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Message has 2 Replies:
 | | Re: 'Dog Bone' - definition
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| (...) Assuming there's another end, I would say that Dog1 is a valid end of a folded dogbone. If you unfold the loop, it's just a dogbone where the double track comes out of the center of the loop instead of at one edge. Of course like Larry says, (...) (24 years ago, 11-Mar-01, to lugnet.trains)
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Message is in Reply To:
| | Re: 'Dog Bone' - definition
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| (...) Having spent a great deal of time on the Supertrain layout, this is something I'm very interested in. A couple of 100' long straight segments with a town and one end and an industrial area at the other was what comprised our "main loop". I've (...) (24 years ago, 6-Mar-01, to lugnet.trains)
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