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• I m reading Track Planning for Realistic Operations. They ve got tables in there for various gauges for turn radii but not for Z. Is there a place to get turn
Message 1 of 3 , Feb 1, 2004
I'm reading Track Planning for Realistic Operations. They've got
tables in there for various gauges for turn radii but not for Z. Is
there a place to get turn recommendations for Z? NMRA.org also is
pretty light on Z and has nothing I could find in this area.

Already subscribed to Z-Track but first issue hasn't arrived.

jtm (got the fever!)
• Hi JTM! Isn t that a great book! I too have often wondered how to translate those radii into Z terms.....Well, Ron Rudell of London Bridge Toys in Emmaus, PA
Message 2 of 3 , Feb 1, 2004
Hi JTM!

Isn't that a great book! I too have often wondered how to translate those
radii into Z terms.....Well, Ron Rudell of London Bridge Toys in Emmaus, PA
(advertizes in Ztrack) gave me the secret key to figuring it out.

He said simply take the HO radius and divide it by 2.51 and that will give
you the Z equivalent..

For example:

If a broad curve in HO is considederd to be 30"

Then, 30 divided by 2.51 = 11.95 (or 12") in Z.

SEE, it's easy!

And to see what a Z curve radius would be in HO, then simply multiply the Z
by 2.51

Thus the largest regular stock Marklin curve (#8530) 8.7" is thus in HO:

Z 8.7 x 2.51 = HO 21.83 (22")

And as you can see that is a little short of what is considered a convential
curve in HO which is 24"

THUS Ron suggests the following radii in Z:

Ron's suggestions for classifying Z radii curves
VERY SHARP------Class 1--Marklin 8510--5.7" (HO equivalent 14")
SHARP----------------Class 2--Marklin 8520--7.7" (HO equivalent 19")
CONVENTIONAL--Class 3--Marklin 8530--8.7" (HO equivalent 22")
VERY BROAD-----Class 6--FLEX-------------13.7" (HO equivalent 34")
VERY BROAD-----Class 7--FLEX-------------14.7" (HO equivalent 37")

I hope this helps you and others as much as it helped me!

Call Ron for the rest of his suggestions:
610-967-6887 (and say the FM sent you!)

BYE!
FM
-----Original Message-----
From: mdgolfbum [mailto:jim@...]
Sent: Sunday, February 01, 2004 10:16 AM
To: z_scale@yahoogroups.com

I'm reading Track Planning for Realistic Operations. They've got
tables in there for various gauges for turn radii but not for Z. Is
there a place to get turn recommendations for Z? NMRA.org also is
pretty light on Z and has nothing I could find in this area.

Already subscribed to Z-Track but first issue hasn't arrived.

jtm (got the fever!)

"Z" WARNING! HANDLE WITH CARE! Highly addictive in Small DoseZ!

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