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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Tue, 6 Mar 2001 21:23:36 GMT
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Viewed:
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2454 times
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SRC <LEGOArches@yahoo.com> wrote in message news:G9sIqE.35@lugnet.com...
> In lugnet.trains, James Brown writes:
> > In lugnet.trains, Larry Pieniazek writes:
> > > In lugnet.trains, John Gerlach writes:
> > > > In lugnet.trains, Eric Kingsley writes:
> > > > > I think it would be nice if we could run trains on a layout in a
> > > > > "Dog Bone" configuration (I.E. 2 reversing loops connected by a
> > > > > length of staight track) with some sort of RCX style control to
> > > > > work the switches and power going through the loops.
> > > > >
> > > > > This would allow us to do a very long and narrow layout as
> > > > > opposed to the more traditional square/rectangle with a loop of track.
>
> > > > I'm working on that very thing for the new GMLTC layout. I've got
> > > > it pieced together (no pun intended!) in my head, it's just a matter
> > > > of programming the RCX and give it a whirl. If I'm thinking of
> > > > everything correctly, it's a simpler solution than you might think!
>
> > > Most MR dogbones are doubletracked on the middle part. This avoids
> > > needing to solve the reverser loop problem (if you omit crossovers)
> > > and gives much more operating flexibility since you can have arbitrary
> > > numbers of trains operating (within limits of blocks, control, etc...)
> > > instead of just one or two.
>
> > All three operational loops that we had at Supertrain were dogbones,
> > and worked well for crowd-pleasing. The only real hitch was that we
> > couldn't run many long trains becuase they'd keep dropping cars or
> > slowing/stopping on the end loops because of friction around the loop.
>
> 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?
>
> SRC
> StRuCtures
> L#765
Good question.
Still I think that the first one is usually used for trams, the second not
used much at all, and the third one being a track with a run-around (as they
are called :)))
At least I see them quite often around here, at they take up less space as
well.
With some tricks (pneumatic?) I guess this kind of bone can be made
controlled by RCX.
2 senti.(0.02 EEK)
Sonnich
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Message has 1 Reply:
 | | Re: 'Dog Bone' - definition
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| (...) There is no rule to say that a dog bone style layout should be in the shape of a dog-bone! A far more common MR arrangement is to run the centre double track section around a room or double back over itself at a higher level. You get more (...) (24 years ago, 10-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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