Date: Mon, 23 Jan 2006 18:39:47 -0500
From: "Bill Fraley" <[EMAIL PROTECTED]>
Subject: Passenger Cars
Hi,
And another thing to remember ...
Very, very large radiuses for the passenger trains to run on!
70' - 80' passenger cars will only run well, barely, on my 42" outside
mainline.
Bill Fraley
=======================================
All --
I have operated full-length passenger cars with body-mounted couplers
successfully on 33" staging-yard curves. The key to doing this is to use
spiral easements between your straight and curved tracks. A spiral easement is
just a variable-radius curve whose radius changes from infinity to the target
curve radius (i.e., 33"). I have previously described how to do this on this
e-list. Math is not required. Just lay out your curve with about a half-inch
offset from the straight track alignment and spike each end of a .125 (or
larger) rail to the straight and the the curve respectively. Draw a pencil
line along the rail base and you have it.
Dick Karnes
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