Anyone make O31 curves in O27 profile track?

GG is easy to bend if you wrap it around something first. Remember you will also have to trim the ends straight. K-Line made a lot of curve sizes but of course now you have to hunt for them.

Jim

A piece of Marx O-27(34) might just work for you.

I'm going a slightly different way the two 180-degree turnarounds on my elevated line. 

1/2 42" - 42" - 27" - 27" - 42" -1/2 42"

That eases the engines into the 27" curves that otherwise would be too tight.  If you can't do something like that (say, 1/2 42"-42"-27" for 90-degrees), then Rob's idea of the old Marx 34" tracks is best. The only problem is that a lot of the Marx track out on the used market is rusty. Good option, but be prepared to grind some rush off, at least the top that contacts the wheel and pick-ups.

I too suggest that you seek out the Marx 34 curves as they are in O-27 profile and can be laid concentric with O-27 curves. I'm not aware of any O-27 profile curves of the 31 inch variety.

Marx 0-34 is easy to spot in a show, as it has five ties vs. three.  It is commonly found in more deluxe sets with the Hudson, Pacific, or diesels. I bet there are stacks of it, far more than you want, on the Bay now.

I remember O-27 profile track in a number of different radius at Nickolas Smith years ago. I don't know who made them, or if they are even available today.

Give them a call at 610 353-8585 and ask them. I could be dreaming but I do remember them.

K-Line made O-27 profile track in a number of diameters. I agree with the suggestions of using Marx O-34 track.

K-Line made everything but  031 with 027-profile rails.

Ross track (follow PDF link on page) corresponds to 027 rail height, and makes 031 curves (model no. 031) and 027 mating pins (model no. 902)

---PCJ

Gargraves makes 032 curves(closer to 032.33 inches) that will mate up to 027 track with adapter pins. I have used Gargraves curves with 027 track and NO shimming needed for track height. 

The Marx track might be a little bit hard to find.

Lee Fritz

Maybe relevant, maybe not: Lionel used to offer 042 curves with 027 profile rail. I used it in the yards on my layout back in 1990 or so. There was less choice then in track, but I like the Lionel track anyway - it's painted and mostly buried.

I have often wished that Lionel 027-profile track was offered even up to 072 diameter (the 031 is); it's tough track that has a real use, if painted, even on Hi-Rail layouts or in modular situations.

The Marx 034 mentioned above is a good suggestion. I have a bit in my "odds and ends track box" and it is indeed 027 profile.

D500 posted:

I have often wished that Lionel 027-profile track was offered even up to 072 diameter...

I have 27", 42", 54", & 72", all in O-27. It's all Lionel & K-Line, except the K-Line only O-72.