Subject:
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Re: high speed railways and strange flat bed cars
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 18 Mar 1999 23:18:17 GMT
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Reply-To:
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cmasi@cmasiSTOPSPAMMERS.chem.tulane.edu
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Viewed:
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1004 times
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Steve Barile wrote:
> Just a copuple weeks ago I took the train from Portland to Seattle. It s was
> the Amtrak (Talgo) passenger train. It has only one axle between cars. I tried
> to find some pics but ran out of time here is a URL
> http://www.talgo.com/prini.htm.
> I plan to make one, I think this one calls for some fancy engineering and some
> rubber bands (of course LEGO brand).
> SteveB
Some very fancy engineering...you are not kidding. The car has to swing like a
pendulum (or would LEGO shock absorbers have enough give to allow the the bottom
of the car to swing out--maybe weights would help by adding a bit more inertia
for the bottom of the pendulum) hold the wheelset perpendicular to the track, all
while allowing the cars to pivot about the wheelset.
>
>
> In lugnet.trains, Christopher Masi writes:
> > Something I noticed while driving past the rail yard and while watching
> > "Extreme Machines" or was it "Trains Unlimited" is a trick that both
> > high-speed trains and freight trains use to reduce rolling resistance.
> > The trick is to cut down the rolling resistance by cutting down the
> > number of bogies/wheel sets. Instead of each car having two sets of
> > wheels, two cars are connected to one sets of wheels. I regularly see
> > flat bed cars that have wheels arranged like this.
> >
> > ____car____ ____car____ ____car____
> > x--x x--x x--x x--x
> >
> > instead of the standard
> >
> > ____car____ ____car____ ____car____
> > x-x x-x x-x x-x x-x x-x
> >
> > Anyone working on a reduced wheel set design? There are certainly some
> > interesting technical issues invovled. Anyway, just trying to spark more
> > discussion.
> >
> > Chris
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Message is in Reply To:
 | | Re: high speed railways and strange flat bed cars
|
| Just a copuple weeks ago I took the train from Portland to Seattle. It s was the Amtrak (Talgo) passenger train. It has only one axle between cars. I tried to find some pics but ran out of time here is a URL (URL) plan to make one, I think this one (...) (25 years ago, 18-Mar-99, to lugnet.trains)
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