are 0-42 fast track curves possible?

Hi.  My carpet central uses all fast track with 036 curves. I know that Lionel makes 031, 036 and 048  and larger fast track curves. I have an outside loop for my passenger cars that uses 036 curves as I have limited space.  Some of my passenger cars will work best on 042 curves. I don't have space for 048 curves. Is it possible to combine any of the existing fast track pieces to create an 042 curves? Any suggestions would be most appreciated.

Original Post

You can't make O42, but you can combine O48 and O36 to get a similar footprint.  I use this on my Christmas layout.

1 - full O48 to 1 - 1/2 O48 to 2 - full O36 to 1 - 1/2 O48 to 1 full O48.  Makes 180 degrees.

To do what you want, you will probably want to intermix the O48 and O36 so that there is not 2 O36 curves connected to each other but it is absolutely doable.

Tony

Just a note - the arrangements above (nor any arrangement except matching or exceeding the recommended minimum) will not guarantee O42 rated equipment will navigate successfully. Your mileage may vary depending upon your exact equipment and track configuration.

bmoran4 posted:

Just a note - the arrangements above (nor any arrangement except matching or exceeding the recommended minimum) will not guarantee O42 rated equipment will navigate successfully. Your mileage may vary depending upon your exact equipment and track configuration.

Again,  beaten  to it.  

I always recommend testing the piece of equipment on the minimum track diameter you plan to use.  In your case, you need to be sure the trucks of your passenger cars do not bind on O36.  I would test that before I laid out money on O48 curves for any of the configurations in this post.  I've run MTH O42 minimum passenger cars on O36 without issues.  The overhang is terrible, but it works.  Part of the spec includes clearance for switch machines, etc.  On my Christmas layout, the only turnout I have is on a straight section and passenger cars would never use it.

For testing, I would do the following:

1) Build an oval loop with just O36 curves and see if there is any binding (there should be almost no difference in effort to push a car between the straight and the curve).  

2) If that doesn't go as planned, try the arrangement you want to use on your layout.  As Paul pointed out, the O42 cars may be happy on a short section of O36 even if 180 degrees of O36 doesn't work.  You are probably thinking, "how do I do that without buying the O48 sections".  Well in my case my LTS accommodates me.  If that is not an option for you, let us know what passenger cars you plan to use in the O36 curves and someone may have your answer.

Tony 

Fastrack O-42, using O-48 7.5degree & 15degree, and O-36 12.5degree.

Fastrack_O-42v2

Yes, it is a lot of sections, and not inexpensive based on the cost of all of these pieces, but it IS a very close match.

O Gauge: the IMAX of Model Railroading, and a multi-sensory experience.

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