## RE: [Z_Scale] Reducing G Scale to Z Scale

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• It depends on which G-scale you are actually referring to ... there are many: 1:20.5, 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about. Also,
Message 1 of 16 , Mar 1, 2007
It depends on which G-scale you are actually referring to ... there are many: 1:20.5, 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about. Also, is this for scaling a model or a layout? Direct scaling of a layout isn't always advisable.

-------------- Original message --------------
From: "Don Avila" <d.f.avila@...>
I wouldn't put my whole retirement on this, but stuff I have picked up
along the way is G = 1:22.5 and Z = 1:220 That would make the
reduction to be just about 90%. Better see what other replies you get
before heading for the milling machine.

Don
Akron, Ohio - USA

-----Original Message-----
From: z_scale@yahoogroups.com [mailto:z_scale@yahoogroups.com] On Behalf
Of John Bartolotto
Sent: Thursday, March 01, 2007 3:04 PM
To: z_scale@yahoogroups.com
Subject: [Z_Scale] Reducing G Scale to Z Scale

Can anyone tell me the percentage ratio to reduce a G scale drawing to
Z scale?

John Bartolotto

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]
• Hi John, Multiply your G measurement by 0.102 = Z. I use this chart if the link works: http://www.urbaneagle.com/data/RRconvcharts.html Michael Hilliard
Message 2 of 16 , Mar 1, 2007
Hi John,

Multiply your G measurement by 0.102 = Z. I use this chart if the link works:

http://www.urbaneagle.com/data/RRconvcharts.html

Michael Hilliard
Wilton, CT USA

John Bartolotto <jsbart@...> wrote:
Can anyone tell me the percentage ratio to reduce a G scale drawing to
Z scale?

John Bartolotto

[Non-text portions of this message have been removed]
• Michael, Thanks! John _____ From: z_scale@yahoogroups.com [mailto:z_scale@yahoogroups.com] On Behalf Of Michael Hilliard Sent: Thursday, March 01, 2007 9:33 PM
Message 3 of 16 , Mar 1, 2007
Michael,

Thanks!

John

_____

From: z_scale@yahoogroups.com [mailto:z_scale@yahoogroups.com] On Behalf Of
Michael Hilliard
Sent: Thursday, March 01, 2007 9:33 PM
To: z_scale@yahoogroups.com
Subject: Re: [Z_Scale] Reducing G Scale to Z Scale

Hi John,

Multiply your G measurement by 0.102 = Z. I use this chart if the link
works:

http://www.urbaneag <http://www.urbaneagle.com/data/RRconvcharts.html>
le.com/data/RRconvcharts.html

Michael Hilliard
Wilton, CT USA

John Bartolotto <jsbart@pjsnet1. <mailto:jsbart%40pjsnet1.de> de> wrote:
Can anyone tell me the percentage ratio to reduce a G scale drawing to
Z scale?

John Bartolotto

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]
• ... 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about. Also, is this for scaling a model or a layout? Direct scaling of a layout isn t always
Message 4 of 16 , Mar 1, 2007
--- In z_scale@yahoogroups.com, saundebn@... wrote:
>
> It depends on which G-scale you are actually referring to ... there are many: 1:20.5,
1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about. Also, is this for scaling
a model or a layout? Direct scaling of a layout isn't always advisable.
>

To figure it out depending on the scale as mentioned in the email above take the larger
scale in this case 22.5 and divide it by the scale you want to go to in this case 220

20.5/220=.0931818
22.5/220=.1022727
29/220=.131818
32/220=.1454545
87/220=.3954545 HO to Z scale
160/220=.7272727 N scale to Z scale

etc, etc, etc.

Good luck on what ever it is you are reducing.

Gwyl B.
• Just a minor correction to what has been posted: There is no 1:20.5 scale. It s 1:20.3, which is the correct scale for modeling U.S. three-foot narrow gauge
Message 5 of 16 , Mar 1, 2007
Just a minor correction to what has been posted: There is no 1:20.5
scale. It's 1:20.3, which is the correct scale for modeling U.S.
three-foot narrow gauge on 45mm track. Along with 1:29 (the scale
"created" by Aristo-Craft), 1:20.3 is probably the most popular of the
various Large Scales among U.S. modelers. Not necessarily true in
other parts of the planet.

--- In z_scale@yahoogroups.com, "grblaser" <grblaser@...> wrote:
>
> --- In z_scale@yahoogroups.com, saundebn@ wrote:
> >
> > It depends on which G-scale you are actually referring to ...
there are many: 1:20.5,
> 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about.
Also, is this for scaling
> a model or a layout? Direct scaling of a layout isn't always advisable.
> >
>
>
> To figure it out depending on the scale as mentioned in the email
above take the larger
> scale in this case 22.5 and divide it by the scale you want to go to
in this case 220
>
> 20.5/220=.0931818
> 22.5/220=.1022727
> 29/220=.131818
> 32/220=.1454545
> 87/220=.3954545 HO to Z scale
> 160/220=.7272727 N scale to Z scale
>
>
> etc, etc, etc.
>
> Good luck on what ever it is you are reducing.
>
> Gwyl B.
>
• I Tend to disagree as most ascessories available including bldg,vehicles, people most G scalers even those using aristo,usa,bachman and of course LGB,gauge 1
Message 6 of 16 , Mar 1, 2007
I Tend to disagree as most ascessories available including bldg,vehicles, people most G scalers even those using aristo,usa,bachman and of course LGB,gauge 1 Marklin is 1/25th as 1/32 looks too small and most things available on the market are 1/25th in size

----- Original Message ----
From: Allan Miller <almiller@...>
To: z_scale@yahoogroups.com
Sent: Thursday, March 1, 2007 4:46:19 PM
Subject: [Z_Scale] Re: Reducing G Scale to Z Scale

Just a minor correction to what has been posted: There is no 1:20.5
scale. It's 1:20.3, which is the correct scale for modeling U.S.
three-foot narrow gauge on 45mm track. Along with 1:29 (the scale
"created" by Aristo-Craft) , 1:20.3 is probably the most popular of the
various Large Scales among U.S. modelers. Not necessarily true in
other parts of the planet.

--- In z_scale@yahoogroups .com, "grblaser" <grblaser@.. .> wrote:
>
> --- In z_scale@yahoogroups .com, saundebn@ wrote:
> >
> > It depends on which G-scale you are actually referring to ...
there are many: 1:20.5,
> 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about.
Also, is this for scaling
> a model or a layout? Direct scaling of a layout isn't always advisable.
> >
>
>
> To figure it out depending on the scale as mentioned in the email
above take the larger
> scale in this case 22.5 and divide it by the scale you want to go to
in this case 220
>
> 20.5/220=.0931818
> 22.5/220=.1022727
> 29/220=.131818
> 32/220=.1454545
> 87/220=.3954545 HO to Z scale
> 160/220=.7272727 N scale to Z scale
>
>
> etc, etc, etc.
>
> Good luck on what ever it is you are reducing.
>
> Gwyl B.
>

[Non-text portions of this message have been removed]
• Hello Allan, I concur. I have a few 1:20.3 kits that I have not had the time to put together yet.They are beautiful. One day, when I inherit a couple of spare
Message 7 of 16 , Mar 1, 2007
Hello Allan,
I concur. I have a few 1:20.3 kits that I have not
had the time to put together yet.They are beautiful.
One day, when I inherit a couple of spare acres, I may
get more involved in this incredibly pleasant
scale. The other large scales do not have as many
cottage industry craftsmen designing rolling stock as you
find in 1:20.3 scale.

Reynard
http://www.micronart.com
On Mar 1, 2007, at 2:46 PM, Allan Miller wrote:

> Just a minor correction to what has been posted: There is no 1:20.5
> scale. It's 1:20.3, which is the correct scale for modeling U.S.
> three-foot narrow gauge on 45mm track. Along with 1:29 (the scale
> "created" by Aristo-Craft), 1:20.3 is probably the most popular of the
> various Large Scales among U.S. modelers. Not necessarily true in
> other parts of the planet.
>
> --- In z_scale@yahoogroups.com, "grblaser" <grblaser@...> wrote:
> >
> > --- In z_scale@yahoogroups.com, saundebn@ wrote:
> > >
> > > It depends on which G-scale you are actually referring to ...
> there are many: 1:20.5,
> > 1:22.5, 1:24, 1:29, and 1:32 to name the ones that I know about.
> Also, is this for scaling
> > a model or a layout? Direct scaling of a layout isn't always
> > >
> >
> >
> > To figure it out depending on the scale as mentioned in the email
> above take the larger
> > scale in this case 22.5 and divide it by the scale you want to go to
> in this case 220
> >
> > 20.5/220=.0931818
> > 22.5/220=.1022727
> > 29/220=.131818
> > 32/220=.1454545
> > 87/220=.3954545 HO to Z scale
> > 160/220=.7272727 N scale to Z scale
> >
> >
> > etc, etc, etc.
> >
> > Good luck on what ever it is you are reducing.
> >
> > Gwyl B.
> >
>
>
>

[Non-text portions of this message have been removed]
• I m not exactly sure what you re disagreeing with. Granted that most Large Scale buildings and accessories (but certainly not all) are built in 1:24 scale (not
Message 8 of 16 , Mar 2, 2007
I'm not exactly sure what you're disagreeing with.

Granted that most Large Scale buildings and accessories (but certainly
not all) are built in 1:24 scale (not 1:25) for Large Scale so they
can enjoy use in most all of the assorted scales, the trains
themselves fall into specific scales--all designed for operation on a
45mm track gauge.

1:32 (MTH, Marklin, etc.) is the correct scale for modeling U.S.
standard gauge prototypes on that track gauge; 1:20.3 (Bachmann,
Accucraft, etc.) is the correct scale for modeling U.S. three-foot
narrow gauge on that track gauge; and 1:22.5 (LGB) is the correct
scale for modeling European meter gauge on that same track gauge. The
other most popular scales in Large Scale include 1:24 (Hartland, etc.)
and 1:29 (Aristo, USA Trains, etc.).

Not sure what all of this has to do with Z, but we might as well have
the correct scale definitions/applications used.

--- In z_scale@yahoogroups.com, Thomas Creighton Sr <bigtrain6@...> wrote:
>
> I Tend to disagree as most ascessories available including
bldg,vehicles, people most G scalers even those using
aristo,usa,bachman and of course LGB,gauge 1 Marklin is 1/25th as 1/32
looks too small and most things available on the market are 1/25th in size
>
• Don t forget G deals with 1:22.5 when narrow gauge, still running on 45mm broad track. When dealing with standard gauge, on 45mm broad track, G is 1/29.5. So
Message 9 of 16 , Mar 2, 2007
Don't forget G deals with 1:22.5 when narrow gauge,
still running on 45mm broad track.

When dealing with standard gauge, on 45mm broad track,
G is 1/29.5.

So in this last case the ratio is something like 1/9.5

Dom

--- Don Avila <d.f.avila@...> a écrit :

> I wouldn't put my whole retirement on this, but
> stuff I have picked up
> along the way is G = 1:22.5

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• The real problem is how do you know that the “G” dimensions you are using are really properly scaled. After reading this whole thread it almost seems that
Message 10 of 16 , Mar 2, 2007
The real problem is how do you know that the G dimensions you are
almost seems that G is in the eye of the beholder.

Don

-----Original Message-----
From: z_scale@yahoogroups.com [mailto:z_scale@yahoogroups.com] On Behalf
Of de Champeaux Dominique
Sent: Friday, March 02, 2007 8:07 AM
To: z_scale@yahoogroups.com
Subject: RE : RE: [Z_Scale] Reducing G Scale to Z Scale

Don't forget G deals with 1:22.5 when narrow gauge,
still running on 45mm broad track.

When dealing with standard gauge, on 45mm broad track,
G is 1/29.5.

So in this last case the ratio is something like 1/9.5

Dom

--- Don Avila <d.f.avila@att. <mailto:d.f.avila%40att.net> net> a écrit
:

> I wouldn't put my whole retirement on this, but
> stuff I have picked up
> along the way is G = 1:22.5

__________________________________________________________
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questions !
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[Non-text portions of this message have been removed]
• John B. G scale varies in size from 1:22.5 to 1:29 depending on the brand however the track is identical (rail centers). Depending on what you plan to reduce
Message 11 of 16 , Mar 2, 2007
John B.

G scale varies in size from 1:22.5 to 1:29 depending on the brand however the track is identical (rail centers). Depending on what you plan to reduce be sure you know what the ratio of the G scale is before you do any reducing.

Carl
In Nebraska in a blowing snow advisory or blizzard warning depending on how far west and south you are of the Missouri River

[Non-text portions of this message have been removed]
• Interesingly enough I seem to have seen somewhere that the individual scales in the G range have sometimes been divided into other reference designations
Message 12 of 16 , Mar 3, 2007
Interesingly enough I seem to have seen somewhere that the individual
scales in the "G" range have sometimes been divided into other
reference designations being G H I and J or was it F G H and I, while
1/32 is Marklin's "1" gauge.
Allan Borg

>
> John B.
>
> G scale varies in size from 1:22.5 to 1:29 depending on the brand
however the track is identical (rail centers). Depending on what you
plan to reduce be sure you know what the ratio of the G scale is before
you do any reducing.
>
> Carl
> In Nebraska in a blowing snow advisory or blizzard warning depending
on how far west and south you are of the Missouri River
>
>
>
> [Non-text portions of this message have been removed]
>
• I believe that s true, although very few are using those designations. For one thing, it leads to extra effort and confusion on the part of the hobbyist
Message 13 of 16 , Mar 4, 2007
I believe that's true, although very few are using those designations.
For one thing, it leads to extra effort and confusion on the part of
the hobbyist because it requires the individual to actually know what
scale the letters designate. "G" was relatively easy back when any
Large Scale trains were pretty much grouped under that designation (as
is Z and most other scales), but with the emergence of 1:20.3, 1:22.5,
1:24, 1:29, and 1:32 (among some others) as viable scales in their own
rite, going with letters just adds to the complexity.

For example, Z alone probably means nothing to most novices; you
pretty much have to expand on the designation every time you introduce
someone to the hobby by explaining that the models are 1:220 the size
of the prototype. Ditto for N, HO, S, O (and OO), etc. And then
there's the added explanations that are needed for Nn3, HOn3, On30,
and the like.

--- In z_scale@yahoogroups.com, "Allan Borg" <themohican2003@...> wrote:
>
> Interesingly enough I seem to have seen somewhere that the individual
> scales in the "G" range have sometimes been divided into other
> reference designations being G H I and J or was it F G H and I, while
> 1/32 is Marklin's "1" gauge.
> Allan Borg
>
> >
> > John B.
> >
> > G scale varies in size from 1:22.5 to 1:29 depending on the brand
> however the track is identical (rail centers). Depending on what you
> plan to reduce be sure you know what the ratio of the G scale is before
> you do any reducing.
> >
> > Carl
> > In Nebraska in a blowing snow advisory or blizzard warning depending
> on how far west and south you are of the Missouri River
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
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