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Old 12-09-2009, 06:50 PM   #1 (permalink)
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Default Minimum radius for Bachmann Shay

Hello everyone, i am sorry if this has been posted before, but i am wondering what is the minimum radius for a bachmann shay where it still looks looks good. i plan to use some short (maybe 20 foot) ore cars on my line and i just wanted to know what would be the minimum radius for those cars and the shay. Thanks,
Sean.
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Old 12-09-2009, 09:04 PM   #2 (permalink)
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Default RE: Minimum radius for Bachmann Shay

You're right - it has been posted before - and not long ago. I tried to find it so I could send you that way, but I can't locate it. I'm sure someone else will find it!

In the meantime - I run mine on R1 (2 ft radius) curves and it looks OK to me. I wouldn't go less than that because some of the gearing may disconnect.


Here's a video of mine on an R1 curve: Bachmann Two-Truck Shay
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Old 12-09-2009, 09:28 PM   #3 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I did not reply because I only owned a G scale shay... I think the video is G scale?

I think Sean is in On3... at least this is the On3 forum.

Regards, Greg
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Old 12-09-2009, 10:53 PM   #4 (permalink)
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Default RE: Minimum radius for Bachmann Shay

Posted By Greg Elmassian on 09 Dec 2009 09:28 PM

I think Sean is in On3... at least this is the On3 forum.


Sorry - didn't see which forum it was posted in. I'm set up to display all new posts upon login. I should pay better attention!
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Old 12-10-2009, 06:41 AM   #5 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I do the same thing Stan, I go by the "not read" posts, and I had to "train" (ha ha) myself to look at the forum name on the posts, because you wind up reading them in no particular order of forum.

Sean, I can't tell you either, but it should be pretty darn sharp curves.

You might have to go to the Bachmann site for this one.

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Old 12-10-2009, 06:53 AM   #6 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I know for a fact all Bachmann's stuff is designed for 18"R. My guess would be the Shay will do 15"R or less. Tack a piece of flextrack to a piece of homasote or foam upon which you've drawn some curves and try it. Make sure you try the Shay in both directions - i.e. with the drive line on both the inside and the outside of the curve.


You could also ask over on Ogauge RR's forum (in the Narrow Gauge section).
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Old 12-13-2009, 04:32 PM   #7 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I asked about the same question a while back, you can find it on page 2 of the On30 track forum.
I was referred to a Geocities web site and printed out the info but can't easily locate it just now.
Trying again to access it I'm told the website is no longer available. I wonder if it has been moved to a new location.
Best,
Tom
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Old 12-13-2009, 04:46 PM   #8 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I found it! Professor Klyzlr's research results.
http://train-model.neuf.fr/on30/On30...Car_Radius.pdf
Dwight, maybe this could go in the archives somewhere for posterity?
Have fun,
Tom
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Old 12-14-2009, 01:32 PM   #9 (permalink)
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Default RE: Minimum radius for Bachmann Shay

I read many, many years ago to use a radius 5 x the length of the item. So if the shay is 8" then a 40" radius will make it look nice. I use in in 1:20 and 1:29 and it works well. As an example...an SD40-2 is about 26" long so a radius of 10 feet and change makes it looks nice.
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Old 12-14-2009, 02:13 PM   #10 (permalink)
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Default RE: Minimum radius for Bachmann Shay

Dwight, maybe this could go in the archives somewhere for posterity? Good idea Tom! Thanks! I'll take care of it.

Done.
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