Subject:
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Re: Building Bridges
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 28 Nov 1999 22:21:11 GMT
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Viewed:
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1153 times
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In lugnet.trains, Scott Arthur writes:
>
> > The whole layout is about 26'7" long.
>
> This was another Q. Can a track this long be power by a single trasformer?
>
> Scott A
Yup, but I cheat a bit. The track is in four zones: 2 on the bridge (each
of two parallel tracks), and one more for each turnabout. The bridge
zones are trivial - each is only 7 track segments long. I'm away from
my track designer, so I can't be exact, but the larger turnabout is about
75 track segements, and the shorter about 55. I power each of these adjacent
to the bridge, so there *is* a point where the train is 75 segments from
power.
I only run 1 train at a time right now, so the load isn't huge. If I use a
single 1-moter engine on a lightly-loaded 10-car train, pushing, it can
come off a long climb (to 7.1 height) and roll, unpowered, the length of
the 7-segment bridge, and regain power at the far end. (I found this
out because I'm short 1 power coupling right now :)
I currently power the track through a Lego switch, linked to another switch
which I use to power the lift bridge from the same transformer.
Jeff Elliott
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