GP>I was watching a US video on modern traction showing new
trackwork and long trains etc. (No steam in sight :-(
The curves were commented on as being 10 degrees, 6 degrees etc.
As the curves in question definitely made a greater angle than
the quoted figures, being more like 90 degrees and 135 degrees of
turn, I guess that this is a local nonclaiture for a particular
radius? My guess is that it relates to an angle of turn over a
given length. If so how long is your piece of string? Otherwise,
how do those of us who are not in the know to recalculate these
numbers to units we can understand?
This is "standard" nomenclature for curve radii (on US railroads,
at least). The angle quoted is the angle between the track and a
100 foot long chord across the curve.
Reggie Arford
___
 X SLMR 2.1a X Riding behind Steam, on the Information SuperRailway!
--- Maximus 3.01
---------------