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 19:24:35 GMT
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Viewed:
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1457 times
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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
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 has 2 Replies:
 | | Re: high speed railways and strange flat bed cars
|
| (...) 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 (...) (26 years ago, 18-Mar-99, to lugnet.trains)
| | | Re: high speed railways and strange flat bed cars
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| What makes the Talgo train a challenging model is not only the common *single* wheelset between cars, but that the cars pivot inward when rounding curves to allow a higher speed and more comfortable ride for the passengers. I've made cars that will (...) (26 years ago, 21-Mar-99, to lugnet.trains)
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Message is in Reply To:
| | high speed railways and strange flat bed cars
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| 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 (...) (26 years ago, 17-Mar-99, to lugnet.trains)
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