34 Collectable Model Trains: Tracks: What track systems are compatible?
Description
This article is from the Model Trains FAQ, by Christopher D Coleman with numerous contributions by others.
34 Collectable Model Trains: Tracks: What track systems are compatible?
Adapter pins are available to connect Gargraves to O or O-27
trackage. O and O-27 pins are different sizes and I have heard of
no adapterbetween them. They can be coaxed together, but the
difference in track height causes additional problems. Adapters
were also made for Super-O to O or O- 27. They are hard to find
and a Gargraves connector can be used for the outer rails if it
is flattened a bit, but originals must be used for the center
rail. K-Line O uses O-27 pins. From Gargraves to Super-O you can
make one by filing a Gargraves connector narrower on one side to
fit into Super-O.
TOO MANY such connections IS BAD! They are usually not smooth and
can cause wheel wear and derailments, especially on curves and
trestles.
As to clearances for engines and rolling stock, anything will run
on a larger track curvature but not always a smaller one. Rail
height is rarely a problem. The semi-scale locomotives and cars
are the most restrictive on curves and switches. Most other
"compressed" equipment will run on O-27 or larger diameter, but
there are exceptions. The classifications of O and O-27 in the
Lionel catalogs has little to do with what track is right for
piece. Instead they are used to define different price levels in
the line. For example the O-27 2020 steam turbine and the O 671
steam turbine are identical other than the number. The 671 just
came with fancier sets. For more details on switch clearances
see the SWITCHES section.
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