Radius of turnouts

[automoto]

Could you tell me the radius of the 3 EZ Track turnouts? Std, #5 & #6.

[Jim Banner]

The "standard" turnout has a constant radius of 18".

The numbered turnouts are similar to the NMRA specifications at this link:

http://www.nmra.org/standards/sandrp/rp12_3.html

Note the radii listed on line 11 for 4, 5, 6, 7, 8, 9, and 10 frogs.

Jim

[ebtnut]

Technically, the numbered turnouts don't have a "radius", since the frog is straight on both legs.  I believe the correct term is substitution radius; that is, the equivalent radius curve that would connect the straight direction with the diverging direction.  I believe this is also covered in John Armstrong's classic book, Track Planning for Realistic Operation.  Having said that, there are some commercial turnouts that do in fact have a radius and curved frogs.  I believe Peco and Atlas make, or made them.  And of course, you can also build them yourself.

[EErikE48]

I tried the link above but the website could not find the page so would someone please either give the correct link or list the radius for E-Z track turnouts. Thanks

[Desert Rose]

look at the bottom of Terry Toenges #2 post.

"The standard switch is 18r 30 degrees. It was intended to be a drop in replacement for both a 9" straight and a full 18r section. However, the points are inset 1.5" from the end, so if you want to complete a circle using the curved route, you'll need to insert a 1.5" straight 180 degrees opposite the switch.
The #4 is roughly 15 degrees.
The #5 is 12 degrees.
The #6 is roughly 10 degrees."

https://www.bachmanntrains.com/home-usa/board/index.php/topic,37848.0.html