4x 4 oval track laiout

[usher42]

I'm using 19" radius curves for my layout. I want to know how many curves for 2 10" straights on each sides.

[fieromike]

I'm using 19" radius curves for my layout. I want to know how many curves for 2 10" straights on each sides.

I'm far from being a math genius, but using 19" radius curves and 20" worth of straight track on each side, should come out to a 38"x58" oval.
I don't think it'll fit on the diagonal either.
The number of curve pieces will depend on whose track you're using, but I believe most 19" radius stuff requires 16 pieces to make a circle.

Mike

[James in FL]

What you want to do is not going to fit on a 48x48.

Remember track radius is measured to the center between the rails.
At best, you could add 1 -  5 inch straight every quarter circle.
This will put you less than 2 inches from all edges on all four sides if using B’mann EZ-Track.

24 pcs of B'mann 19r to make a full circle.
Add to that, 1 five inch straight between every 6 curve sections.

[usher42]

What about 11"regular curves will they fit 4x4 board with 4 10"straghts. Like 2  10"straghts on each side.

[nematode]

if you are making a 4 foot by 4 foot, instead of a loop, try a triangle layout, like the Acela Express layout

each leg of the triangle
1 x 19"                =15 degrees
3 x 11 1/4"          =90 degrees
1 x 19"                =15 degrees
total                    =120 degrees * 3 = 360 degrees (circle)

add 2 x 5"

the 19" radius provides an easement into the 11 1/4" radius for better operation

I find the triangle more interesting than a loop