Subject:
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Re: Radius of the track (was Re: Need some help with some Train specs)
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Newsgroups:
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lugnet.trains
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Date:
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Sat, 9 Dec 2000 17:50:26 GMT
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Viewed:
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1525 times
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Ok i am sorry but again this is how it works! The term Radius(in model
railroading) originates from the fact that you take a half circle of track
and measure it from one outside track to the other outside. The term TURN
RADIUS(in model railroading) means the minimul width of the half circle,
from the outside rail to the opposite outside rail, so that the train can
still run! The diamiter of a full track circle can be used as a turn radius
as long as the circle is even! In model railroading (not lego trains) we
use different terms and i understand the fact that a radius in mathematical
terms in the lengths/whatever from the middle of the circle to the outside.
Look i am not trying to be special or anything like that. Just take a tape
measure and measure across an even circle, outside rail to the opposite
outside rail and you'll get the 'turn radius'.
Well thats how my dad and my friends tought and i have a nice NON
LEGO-HO railroad based on that philosiphy AND IT WORKS!!!!!!
;)
kai
(sorry if there are any mis-spelligs)
In lugnet.trains, Frank Buiting writes:
> "kai brodersen" <cbrodersen@mediaone.net> wrote in message
> news:G5B5E8.FvM@lugnet.com...
> > I am sorry but thats not how ya' do it. The turn radius is basically
> > measuring how wide a half a circle of track is from the outer track across
> > the half circle to the outer track on the opposite side.
> > check out this drawing it will help.
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?i=23133
>
> Uhm no...your picture shows the diameter of a circle. The 'radius' measured
> from the middle of the circle to the track. IIRC the center of the track is
> used when measuring the radius of train tracks).
>
> > The term "radius" is comes from HALF a circle of track.
>
> Sorry for nitpicking, but the term radius doesn't come from 'half a circle'.
> It is used to describe a circular path when a given point is turned X
> degrees around a fixed point where the two points are the distance Y apart.
> Y is the radius. Radius is a latin word which can be translated as 'the
> spoke of a wheel'.
>
> -Frank
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