turning radius

[tremp]

Just wondering if someone could tell me if a turning radius is measured from the center to the inside rail or outside?

Thanks

[Alan]

Not certain, but I think it is from the track centre line

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Alan

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[StickyMonk]

yes i think its from the track centre as well

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[ChrisDante]

http://www.trainboard.com/biggrin.gif and the winner is... Alan. Radius is measured from the centerline.

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When in doubt, empty your magazine.

[twr2244]

<BLOCKQUOTE>quote:</font><HR>Originally posted by tremp:
Just wondering if someone could tell me if a turning radius is measured from the center to the inside rail or outside?

Thanks<HR></BLOCKQUOTE>

Believe it must be measured from the outside since 18" radis laid properly measures exactly 36" across.

[Alan]

twr - Welcome to Trainboard http://www.trainboard.com/smile.gif

I think either way would be near enough in the small scales http://www.trainboard.com/smile.gif

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Alan

The perfect combination - BNSF and N Scale!

www.ac-models.com (http://www.ac-models.com)
http://Andersley.homestead.com
http://galleryusarail_tehcaj.homestead.com
http://eurogallery.homestead.com

[Harron]

Centerline is correct. Whenever you're laying a curve, measure on the centerline. All the sectional track that you buy will make a curve on the centerline radius. 18" curves laid properly will create a 36" circle from centerline to centerline.

Prototypes use centerlines too. For instance the typical distance between to parallel tracks is 13-16 feet from center to center.

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Corey Lynch
VP - Rensselaer Model RR Society
NEB&W RR