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Title: 15-inch radius for geared locos? Post by: Whatlep 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. Title: Re: 15-inch radius for geared locos? Post by: Rich R 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. :-[ 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 Title: Re: 15-inch radius for geared locos? Post by: Rich R on February 03, 2007, 06:48:01 PM You've got mail! 8)
I wish I could give credit to the original poster but I cannot recall who that was. Cheers, Rich R Title: Re: 15-inch radius for geared locos? Post by: BIG BEAR 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. Title: Re: 15-inch radius for geared locos? Post by: Rich R on February 03, 2007, 10:10:13 PM Barry,
Check your email! ;D Cheers, Rich R Title: Re: 15-inch radius for geared locos? Post by: BIG BEAR 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. Title: Re: 15-inch radius for geared locos? Post by: Tim 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 Title: Re: 15-inch radius for geared locos? Post by: Rich R 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 Title: Re: 15-inch radius for geared locos? Post by: Tim 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 Title: Re: 15-inch radius for geared locos? Post by: Whatlep 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....
Title: Re: 15-inch radius for geared locos? Post by: David(UK) 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. Title: Re: 15-inch radius for geared locos? Post by: Hoople on February 06, 2007, 12:06:39 PM Tim's got a good point, but I would stay with at least 22"s.
Title: Re: 15-inch radius for geared locos? Post by: Whatlep 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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