Subject:
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Re: Brit-Rail APT (Advanced Passenger Train)
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 30 May 2001 22:14:13 GMT
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Viewed:
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1517 times
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In lugnet.trains, James Mathis writes:
> I've been working on a pendular mechanism to tilt train cars through curves.
> A fun project! :-)
>
> There are quite a few train sets now that employ some type of pendular scheme,
> now; but, for me the Brit-Rail APT was my first introduction to a tilting
> train. (Was it the first to carry ticket-paying passengers?) So, it seems
> appropriate to outfit an APT with my first pendular mechanism.
>
> In the Spring of 1981, I lived in England (11 years old) and got to ride the
> InterCity 125 to Edinbourough(spelling, sorry). Fantastic ride! In the little
> town of Grantham, Lincolnshire, I got to hear the 125 set blow its dual-tone
> two-note horn as it blasted through town. (We lived in Harlexton Manor, in
> case anyone reading knows that place.) I loved hearing that horn and the
> wish-whoosh of the 125. :-)
>
> OK, back to the APT....
>
> The APT was soon to be revealed. I must have seen preview photos on the
> tele...? I thought it was a very cool serpantine looking train set with a very
> aggressive snout. I even like the contrasting yellow nose. :-)
>
> With no further delay (but, don't buy any tickets, yet!), here is my version 1
> of the APT:
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=4715
>
> Tilting Mechanism:
> Yes, it is really in there. I've proven the mechanism on a single 4-axle
> dual-bogie passenger car. But, this APT is currently only CAD-based. From the
> few photographs of the APT that I have found, it is unclear to me how the
> wheelsets are composed near/at the union of adjacent wagons. I have modeled
> adjacent wagons to share a 2-axle wheelset. Is this correct?
>
> So, my APT v1 model may not run/tilt quite right. But, hey, failures of my APT
> set would be on par with the real-life set...sadly.
>
> The tilting mechanism adds no additional height to the train car. In fact, the
> pivoting bogie plate rest under the wagon main carriage just as in a regular
> train wagon if built by the Technic hole-plate technique (as opposed to using
> the LEGO train base-plate).
>
> Any pointers to additional photos of the real-life APT set would be
> appreciated. Thanks.
>
> Advanced Passenger Train
> British Rail
> Very limited service in 1981-82(?)
>
> Employed a pendular (tilting) mechanism for projected top speed of 150mph.
>
> See real-life photos at:
>
> http://mercurio.iet.unipi.it/pix/gb/electric/APT/pix.html
>
> http://www.o-keating.com/hsr/apt.htm
>
> http://www.freefoto.com/pictures/transport_rail_modern/apt/index.asp
>
> Thanks for looking...and reading!
>
> later,
> James Mathis
Very impressive, one of the best color schemes I've seen on a LEGO®
passenger train. It looks feasible to build too.-Harvey
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Message is in Reply To:
 | | Brit-Rail APT (Advanced Passenger Train)
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| I've been working on a pendular mechanism to tilt train cars through curves. A fun project! :-) There are quite a few train sets now that employ some type of pendular scheme, now; but, for me the Brit-Rail APT was my first introduction to a tilting (...) (25 years ago, 30-May-01, to lugnet.trains)
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