Peco Double Curved Turnout Radii

Model Railroader General Discussion (Model Railroader)
1

Does anyone know what the different radii are for Peco Double Curved OO/HO 100 turnouts, both tight and wide, sets are?

I’ve checked the website and no go!

Thanks

Fergie[:(]

2

I’ve found all these datas on Peco N scale on Loy’s Toys website and believe they have same for HO.Just type Loy’s Toys in your search engine,and then click Peco.

3

It was hard to find the data on the site so here is what Loy’s Toys says:
Large
Outside 60" Inside 30"
Smal
Outside 19 7/8" Inside 17 1/4"

4

Thanks guys

What I really need is a 22" outside and an 18" inside. I’ll check out Walthers and see what they have.

Fergie

5

Peco’s ST-244 and ST=245 (right and left, respectively) are the 17.25, 19.875 as Texas Zephyr posted above. I have a pair of these, and they fit pretty well into the 18/22 range. With flex track, it’s as close as I needed to get. Besides that, they look and work just great.

6

Try “Model Power” I believe they adopted the old Atlas 22"/18" design. I believe Shinohara<sp?> also makes one about that size. If you have the time cruise the swap meets and find an old Atlas. They are really nice. I never figured out why they stopped making them, right about the same time the “Build the Jerome & Southwestern” ran in MR?!?!!

7

I’ve spliced in the 245 into a 22" curve and when the Challenger swings around and into the turnout it really looks pronounced as it goes through the turnout. I’m also trying to keep to the 22" minimum as I’m getting the T-1 2-10-4 and it’s minimum is 22". Looking at the Walthers Catalogue, they have a 24"/18", which will cost me $33 CDN… Ouch!

Once again, thanks for the replies

Fergie

8

Who has a pic of one of those. I never saw a DOUBLE CURVED TURNOUT.

9

Double curved is the same as “curved” - both ends are curved beyond the frog instead of a single curve and a single straight ahead.

10

The through rails are curved in the same direction as the diverging rails, but spaced so that they maintain distance once you begin to apply straights.

Fergie, I have limited experience, so take my caution for what it is worth. I have found that the manufacturer’s minimums tend to leave so little room for error that your 22" curves might be right on the razor’s edge in terms of the T-1’s ability to negotiate.

I’m sure they’re right, but I would go with larger curves based on my experience. It may be that your track is excellent (why shouldn’t it be? [:D] ) and the loco will travel your roads just fine. My track is EZ-Track, and I could only get my 18" BLI Hudson to take 22" curves reliably. My track is flat and even, and gauged, so I am left thining that there are claimed minimums and there are no-s**t minimums.