4-8-8-4 curve radius

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Anonymous

Member since
April 2003
305,205 posts

4-8-8-4 curve radius

Posted by Anonymous on Tuesday, March 23, 2004 5:00 PM

I have rivorriosi big boy and I am not sure of the curve radius I can run her on if anyone can help I would be thankful atsf1

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Fergmiester

Member since
February 2004
From: Out on the Briny Ocean Tossed
4,240 posts

Posted by Fergmiester on Tuesday, March 23, 2004 5:10 PM

[#welcome]

Big Boys are hogs and though they can do 18" you will find that they are more realistic on a 30" + radius.

Hope your here for the long haul

http://www.trainboard.com/railimages/showgallery.php?cat=500&ppuser=5959

If one could roll back the hands of time... They would be waiting for the next train into the future. A. H. Francey 1921-2007

Anonymous

Member since
April 2003
305,205 posts

Posted by Anonymous on Tuesday, March 23, 2004 5:45 PM

Yes, BB's can take 18"s, but 22" would be better. 18" will strain it severly, and if I can barely get my 4-8-2 around an 18", I'd say a Big Boy'd be better on 22" or 20".

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BR60103

Member since
January 2001
From: Guelph, Ont.
1,476 posts

Posted by BR60103 on Tuesday, March 23, 2004 10:17 PM

I have a book that gives minimum radii for various prototype locomotives.
The Big Boy is shown as 288', with 3/4" gauge widening. This is assumed to be at dead slow speed in the shops. (HO equivalent about 40").

--David

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4-8-8-4 curve radius

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