@Boilermaker1 posted:I would say there's a zero percent chance of using fastrack and making that work. Agree with Ron, you need a numbered switch. A radius divergent ("O-XX") switch curves away and is usually a curve replacement, so the curvature is 22.5 degrees to replace a curve section. and would take another full curve to turn it back. It wouldnt matter what radius you used (unless it was miniscule), you wouldnt be able to bend it back before you hit the wall.
A numbered switch diverges at an angle from the straight leg, but continues in a straight path, which is why you can get them into more compact spaces. A number 4 would do the job like Ron said. Use a Ross #4 and a TR35 transition track and you'd have 3.5" center to center. Personally, I'd use a ross regular, rather than a #4. The angle is 11.25 rather than 13, but the length is about the same. Less angle, less "S" in the siding entrance, and the effective radius of a Regular is over 50" so anything would go through it.
Installing it in fastrack would take either 3 of the O to fastrack conversion pieces and 9 O to gargraves transition pins, or you can cut and drill out fastrack and solder the O to Gargraves conversion pins into the tops of the fastrack rails.
Well.. I made it work..072 switch with a bit of trimming.. The siding is 5 feet long and dead ends way under the top lay out.
