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curved turnout radius

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  • Member since
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curved turnout radius
Posted by Jeff1952 on Sunday, March 17, 2019 5:42 PM

Hey Guys, anybody know the "curve radius" of a Peco Code 100 Curved Double Radius turnout? Left hand insulfrog, if that makes any difference? I'm ordering track and wondering if this will "fit in", as I don't want the transitions to be glaringly obvious. Thanks!

Tags: turnouts
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Posted by restorator on Sunday, March 17, 2019 5:52 PM

The standard large peco curver turnout is 30" inside and 60" outside, the "small" I think is 18" and 24"?

 

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Posted by riogrande5761 on Sunday, March 17, 2019 6:10 PM

restorator

The standard large peco curver turnout is 30" inside and 60" outside,t

The Peco code 100 curved turnout is not labeled large, I believe they are just curved and from the Peco Streamlined series.  Radius is 60"/30" yes.

 

the"small" I think is 18" and 24"?

 

They are from the Peco Set Track series and not labeled small.  Just curved.

Rio Grande.  The Action Road  - Focus 1977-1983

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Posted by hon30critter on Sunday, March 17, 2019 9:59 PM

Note that the Peco Code 83 curved turnouts are 36" and 60" as opposed to 30" and 60" for the Code 100s. There are easy ways to transition from Code 83 to Code 100 should the larger inner radii option appeal to you.

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

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Posted by gregc on Monday, March 18, 2019 1:04 PM

there was a thread about curved turnouts a while back that suggested the inner radii were often not as stated and I couldn't understand why the frog number was so conventional and that the frog was so close to the points.

at the time I was hand laying a curved turnout and tried to figure out how the commercial turnouts could have a frog so close to the points.  I came to the conclusion that the two curves do not start at the same location.

you may want to consider this

  

greg - Philadelphia & Reading / Reading

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Posted by Jeff1952 on Tuesday, March 19, 2019 6:53 AM

Thanks guys. gregc, really appreciate the illustrations! Math was never my friend :( 

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Posted by kasskaboose on Tuesday, March 19, 2019 9:13 AM

Jeff1952

Thanks guys. gregc, really appreciate the illustrations! Math was never my friend

:( 

Fantastic that someone else also struggled with math.  Funny how I appreciate it as an adult.  I guess a person becomes wiser.

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Posted by selector on Tuesday, March 19, 2019 11:30 AM

kasskaboose

 

 
Jeff1952

Thanks guys. gregc, really appreciate the illustrations! Math was never my friend

:( 

 

 

Fantastic that someone else also struggled with math.  Funny how I appreciate it as an adult.  I guess a person becomes wiser.

 

I think you'll find most adults doing much better when they go back to continue their education than they did when they left for any reason...love, work, ill health, lack of interest...busted....whatever. Wink

I was a C+ student who struggled with motivation all my middle and high school years.  When I went back to complete a degree, and then on to graduate school, I amazed myself.  What I had were two new tools: motivation and 'learned how to learn.'  I had to outsmart my own lazy brain, and after that all things were possible.

Back to curved turnouts.  I have experience only with the Walthers/Shinohara ones from the early 2000's.  Both radii on the #7.5 and #8, the two with which I have experience, were short by about 2-3", and it made a disappointing difference. I had to mangle mine in order to widen them somewhat.

I believe the PECO line of turnouts are well known, well understood, and properly built with published measurements that are true.  Their quality control is excellent.

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Posted by cuyama on Tuesday, March 19, 2019 1:52 PM

selector
I believe the PECO line of turnouts are well known, well understood, and properly built with published measurements that are true.  Their quality control is excellent.

+1

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