Subject:
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Re: APT tilts thru curves in Real-Build ABS form
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 25 Jun 2001 22:56:16 GMT
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Viewed:
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1064 times
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"James Mathis" <thakius@nmt.edu> wrote in message
news:GFI7GG.36J@lugnet.com...
> 1) The train cars do indeed tilt through curves. The pendular axis of
> rotation is just below the roof-line; thus, the car bodies swing "out"
> rather than tip "in". I'm not sure that is the best way to describe this
> motion???
That seems to make sense. CN's original "Turbo" exhibited this
characteristic; today, the TALGO tilting trainsets also tilt this way. I
don't know of a lot of passive systems able to tilt inward; but I think that
ABB's trapezoidal linkage leans more toward the centre, while remaining
inherently passive...
(does that make sense? From a physics standpoint, maybe it doesnt...! I'm
not sure.)
> 3) The height of the train is equivalent to a standard official LEGO
> passenger train.
That's really amazing! That's fantastic you're able to fit the hardware into
such a compact space.
> I found it a little difficult to photograph the tilt. I hope some of the
> pictures convey that it really is tilting!
I supose this picture exhibits it the best:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=51171
Is that the appr. maximum tilt angle achieveable? I'm very intrigued by your
pendular mechanism. :)
Again, James, you amaze me! Thanks for sharing your brilliant work.
Iain
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Message has 1 Reply:
 | | Re: APT tilts thru curves in Real-Build ABS form
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| (...) I'm actually very ignorant as to how the real APT tilts. What little I do know makes me think that the pendular axis is very low; maybe just above the bogie near the floor? I think the APT used a very active forced-tilt with some kind of (...) (23 years ago, 25-Jun-01, to lugnet.trains)
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Message is in Reply To:
| | APT tilts thru curves in Real-Build ABS form
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| My attempt to model the British Rail Advanced Passenger Train set is progressing. The "real-build" ABS consist is: 1. cab unit (driver trailer second) 2. passenger car (trailer second) 3. passenger car (trailer brake first) 4. motor unit (non (...) (23 years ago, 25-Jun-01, to lugnet.trains) !
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