Robert Heller , In a message on Mon, 08 May 2006 22:23:16 +0200, wrote :
RH> David Nebenzahl , RH> In a message on Mon, 08 May 2006 11:00:03 -0700, wrote : RH> RH> DN> Regarding the questions posed about curved bridge spans here recently: RH> DN> when I read this, I knew there was an article on this in one of my model RH> DN> RR mags. I finally found it in the August, 1994 issue of /Mainline RH> DN> Modeler/, a very interesting 6-page article devoted to this subject. RH> DN> RH> DN> I've uploaded a couple of scans to links given below. To the poster who RH> DN> said that such a thing wasn't possible ("They would tumble to RH> DN> the earth when the first train passed over them"), here's living proof RH> DN> that it is. RH> DN> RH> DN> These are all in West Virginia (C&O, B&O, Virginian). RH> DN> RH> DN>
RH> It would be nice if you posted these images to someplace where they RH> would in fact be available. I'm getting *bandwidth exceded messages*
. RH> You need increase your bandwidth or upload them to a site where you have RH> more bandwidth available. RH> RH> I was going to look to see if the actual spans were curved. It is RH> correct that there are many cases of a curve on a trestle or bridge, but RH> usually the *individual*
spans are in fact straight (track curves, but RH> the girders are all straight). Given that you named the images RH> 'CurvedTrestle1.jpg' and 'CurvedTrestle2.jpg' suggests that these are RH> trestles. Often trestles use short spans and it is easy enough to make RH> each successive span at a small angle to the previous span and then lay RH> a curved section of track on top. I don't know if that is the case RH> here, because I cannot see the images!
The images are showing up now. Yes, it is as I stated above: the girder spans are in fact straight sections (and wider than normal), with curved track laid on top. Each of the *spans* is straight, even though there is curved trackage. Things are a bit more obvious with the through plate bridges -- it is harder to tell with the deck bridge.
RH> RH> DN> RH> DN> RH> DN> -- RH> DN> Pierre, mon ami. Jetez encore un Scientologiste RH> DN> dans le baquet d'acide. RH> DN> RH> DN> - from a posting in alt.religion.scientology titled RH> DN> "France recommends dissolving Scientologists" RH> DN> RH> RH> Robert Heller -- 978-544-6933 RH> Deepwoods Software -- Linux Installation and Administration RH>
-- Web Hosting, with CGI and Database RH> firstname.lastname@example.org -- Contract Programming: C/C++, Tcl/Tk RH> RH> RH> RH> RH> RH> RH> RH>
Robert Heller -- 978-544-6933 Deepwoods Software -- Linux Installation and Administration
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