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Author Topic: 15-inch radius for geared locos?  (Read 5131 times)
Whatlep

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« on: February 03, 2007, 01:53:43 PM »

This is a repeat of a post in the old forum which I can no longer access - apologies if this ends up repeating data.

Does anyone have experience of using Shay or other geared-type locomotives - or a Forney - on curves of less than 18-inch radius?   In particular, anyone successfully using European standard 14.625 inch radius curves?

Thanks for any information.
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Rich R
Guest
« Reply #1 on: February 03, 2007, 06:09:58 PM »

Someone posted a table that gave most, but not all the minimum radius curves that On30 loco's could traverse. I may have had the brains to save that. If so I'll repost it 

Nope, no brains! I didn't save it so that I could find it. 
Lemmee look once more. Embarrassed


I think you mentioned you wanted to use a Shay on those curves but you hadn't bought it yet? My thought was to go ahead and give it a go as it would be a new engine and bachmann would take care of it if there were problems.

Cheers,
Rich R
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Rich R
Guest
« Reply #2 on: February 03, 2007, 06:48:01 PM »

You've got mail!  Cool
I wish I could give credit to the original poster but I cannot recall who that was.

Cheers,
Rich R
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BIG BEAR

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« Reply #3 on: February 03, 2007, 08:24:31 PM »

       
     I wish I'ld have saved that chart, or at least printed it out. OH NO!
all the the old forum stuff is lost. I did find the Photo bucket still works, &
had the "old forum" pictures in it.

             Barry,

... all the Live long day... If she'd let me.

   
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Barry,

...all the Live long day... If she'd let me.
Rich R
Guest
« Reply #4 on: February 03, 2007, 10:10:13 PM »

Barry,


Check your email!   Grin

Cheers,
Rich R
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BIG BEAR

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« Reply #5 on: February 03, 2007, 10:21:13 PM »

         
        Rich,
     I was down loading it to my trains folder, when I got this message.
Thank you so very much.
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Barry,

...all the Live long day... If she'd let me.
Tim
Guest
« Reply #6 on: February 03, 2007, 10:31:39 PM »

Hey Guys

I am the one that posted the radii for the On30 Loco's

I will repost it again tommorow.

Tim L. Anders
Souderton, Pa
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Rich R
Guest
« Reply #7 on: February 03, 2007, 10:54:51 PM »

Hi Tim,

I guess I owe you for more than just the measurements huh?  Believe me I would have given you credit had I been able to remember who posted that table. Good to know that you’ll rework it and repost it. I was going to but as it was your post …. I tip my hat to you.


Thanks again,
Rich R
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Tim
Guest
« Reply #8 on: February 04, 2007, 12:07:20 AM »

On30 Minimum Radius Guide

Published in On30 Tracks Magazine


Locomotive         Practical   Absolute
                   Radius          Minimum
Bachmann

2-6-0 Mogul           18”          12”

0-4-0 Porter           12”           6”

0-4-2 Porter           15”           9”

0-4-0 Diesel           12”           6”

2 Trk Shay           18”           15”

2 Trk Climax           18”           12”

Street Car            15”            3”

2-8-0 Baldwin  O/F         18”            15”*

Railtruck              18”            12”

Precision Scale

K27   2-8-2           26”+           26”+

Broadway Limited

C-16   2-8-0           18”           15”

* Perfect track.

Tim Anders
Souderton, Pa



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Whatlep

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« Reply #9 on: February 05, 2007, 06:24:50 PM »

Stupendously quick and efficient!   Many thanks to all.  Anyone care to guess about the Forney's abilities?   18 inch radius seems safe....
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David(UK)

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« Reply #10 on: February 06, 2007, 05:14:51 AM »

18" ain't safe!
I did an experiment using EZ track with straight into curve, reverse curve and full curve. If the Forney ran in reverse ( i.e. tender first) pulling stock through that configuration, you were ok, but running engine first then the rear overhang would cause derailments.
22" is the safest.
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Regards
David(UK)
Rail Baron of Leeds
Hoople

I like BIG steam.


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« Reply #11 on: February 06, 2007, 12:06:39 PM »

Tim's got a good point, but I would stay with at least 22"s.
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-Hoople-

Modeling UP, SP, and D&RGW in colorado between 1930 and 1960.

GIVE US HARRIMAN STEAMERS BACHMANN!
Whatlep

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« Reply #12 on: February 06, 2007, 01:31:22 PM »

Thanks for that - good job I didn't order a Forney yesterday then!   No room for 22 inch curves, so looks like it's back to the drawing board on loco acquisitions.   I wish Bachmann would bring in another diesel model.  Perhaps an On30 version of the double-ended rod drive made in G scale?
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