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Subject: 
Re: high speed railways and strange flat bed cars
Newsgroups: 
lugnet.trains
Date: 
Sun, 21 Mar 1999 21:08:44 GMT
Viewed: 
1368 times
  
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 pivot inward with double wheelsets by translating the rotation
of the wheelset to pivot the car above inward.  But when you are working with a
single wheelset, it has to be locked to the chassis of the car and not allowed
to pivot.  If a single wheelset can pivot, it will quickly go askew and derail.

Rubber bands may be useful to keep the wheelsets from going too far askew, but
it will be a challenge.  I look forward to hearing of any solution anyone comes
up with.

Ben Fleskes
PNLTC

In lugnet.trains, Steven Barile writes:
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

<snip>



Message has 2 Replies:
  Re: high speed railways and strange flat bed cars
 
I think you are right, the "steering" of the single wheelset must be linked to the swinging of the car. The weight of the cars would hold the wheelset straight, but as the train goes into the curve the swinging action would cause the wheelset to (...) (26 years ago, 22-Mar-99, to lugnet.trains)
  Re: high speed railways and strange flat bed cars
 
Ben Fleskes wrote in message ... (...) *single* (...) to (...) made (...) rotation (...) with a (...) allowed (...) derail. (...) Actually, the Talgo trains do *not* pivot inward (like your model does, and my version of the Metroliner [1] [2]), but (...) (26 years ago, 22-Mar-99, to lugnet.trains)

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 (...) (26 years ago, 18-Mar-99, to lugnet.trains)

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