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Old 10-09-2012, 05:49 PM   #1 (permalink)
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Default Thinking about On30 Have questions

I went to my local train hobby shop today to look at some On30 engines.To me they looked like they weren't much larger than HO.
I must have been in G scale to long to remember how small HO is.
1. Does anyone have a picture of a HO gauge and an On30 engine or car that is the same type and length for comparison?

I found a track plan I like in the 101 track plans book I have had for years.
2. How much larger do I have to make the HO plan to have On30 work?
More questions to follow.

Thanks
Richard
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Old 10-09-2012, 05:57 PM   #2 (permalink)
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Default RE: Thinking about On30 Have questions

On30 runs on HO track. That is one of the advantages of On30. However it just doesn't look right on HO track as the ties are to small and spaced wrong. Fortunately several companies manufacture On30 track that looks right. On30 requires more space between douple tracks than HO as well as more height. Most HO track plans can be adapted to On30 with little difficulty. There is a O gauge forum at http://ogrforum.ogaugerr.com/ They have a section for On30 that is pretty good.
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Old 10-09-2012, 06:53 PM   #3 (permalink)
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Default RE: Thinking about On30 Have questions

Posted By RCE on 09 Oct 2012 05:49 PM
I went to my local train hobby shop today to look at some On30 engines.To me they looked like they weren't much larger than HO.


Actually, in reality they are in fact twice the size of HO scale!
but I agree, they dont look much larger than HO scale..
but the "dont look much larger" thing is perception, not reality.
here is why:

Most On30 trains are models of *small* prototype locomotives and cars. Compared to HO scale, they are larger models of smaller trains.
Most HO trains are models of *Large* prototype locomotives and cars. Compared to On30 scale, they are smaller models of larger trains.

the net result is, they look pretty close in size..HO is smaller models of larger prototype trains, and On30 is larger models of smaller prototype trains.
but if you took the SAME prototype locomotive, say a Prototype 3-foot gauge Forney,
built one in HO scale (HOn3) and one in O scale (On30)..the HO scale model would be half the size of the O scale model..

Take a Bachmann On30 Forney, put an EMD F7 Diesel next to it in the *Same scale* (O-scale)..
The On30 Forney and the O-scale diesel are the same scale, 1:1 to each other. O-scale figures, buildings, automobiles, etc, will "match" them both perfectly,
because both are O-scale...but, catch this: The O scale F-unit will be twice the size of an HO scale F-unit..

Take an HO scale model of the same *prototype* forney as the Bachmann On30 forney,
it will be half the size of the On30 Forney..

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Old 10-10-2012, 06:33 PM   #4 (permalink)
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Default RE: Thinking about On30 Have questions

Thanks for the responses. Went to the train store today compared a On30 2-6-0 to a HO 2-6-0, the On30 was a little bit bigger.
I thought it would be a lot bugger than it was ( that's just me)

1. O scale buildings will work?
2. what track spacing do I need for straight and curves ?
Will be using 24"r or bigger curves.

Richard
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Old 10-10-2012, 07:00 PM   #5 (permalink)
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Default RE: Thinking about On30 Have questions

Posted By RCE on 10 Oct 2012 06:33 PM
Thanks for the responses. Went to the train store today compared a On30 2-6-0 to a HO 2-6-0, the On30 was a little bit bigger.
I thought it would be a lot bugger than it was ( that's just me)
Unless they are models of the *same* prototype locomotive, then the comparison is meaningless..
The On30 model was probably a model of a small narrow gauge 2-6-0.
the HO scale model was probably a model of a large standard gauge 2-6-0..
The standard gauge prototype mogul was probably twice the size of the narrow gauge prototype mogul,
which gives the same issue I talked about in my first post..
"2-6-0" is just a wheel arrangement..there were hundreds of different kinds of 2-6-0's, of widely different sizes and shapes..


1. O scale buildings will work?

yep! sure will! On30 *IS* O-scale, 1/48 scale.
you actually *want* use everything in O-scale, figures, structures, vehicles, everything should be 1/48 scale.
2. what track spacing do I need for straight and curves ?
Will be using 24"r or bigger curves.

The generally accepted rule for two tracks side-by-side in On30 is Three inches between track centers.
This guy has a useful webpage:
On30 beginner guide

Scot
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