Although
members had various modelling interests miniature locomotives outnumbered any
other type of model and a raised track in 3 ½ and 5 inch gauge was constructed
soon after the club took up residence at the site. It soon became apparent that there was a growing enthusiasm for 7
¼ inch gauge locos and the decision to lay a ground level track in 5 and 7 ¼
inch gauge was made shortly after the site was purchased.
The
route of the track was marked out, excavated and lined with Geotex
matting. Crushed concrete was then used
as the sub base, well compacted with a Wacker plate. Available funds dictated that the rail would be hot rolled bar 30
mm x12 mm for the outer rails and 10 mm thick for the single 5 inch rail, the
bar being pressed into routed slots in wooden softwood sleepers and finally
ballasted. Points were built up from
the same section bar and operated by hand with weighted levers.
This
system worked well for a while but then problems developed with the rail having
a tendency to lift up in the slots.
Ongoing maintenance consisted of squeezing the rail back into the slots
with G clamps and then finding that ballast had entered the slot and had to be
poked out first. Maintenance crews put
up with this for some time but it was apparent that a new approach was needed
as more time was being spent on maintenance than running locos.
Version
two consisted of a cross tie welded to the bottom of all three rails the tie
being then attached to the sleeper with coach screws. The sleeper pitch was increased to 12 inches the appearance of
which suited the narrow gauge locos rather than standard gauge. However, the trial section proved to be
durable so the main running line was re-laid to the new standard.
Signalling
had been controlled by track circuiting and had always been a problem because
rust on the rails prevented a good electrical circuit. When the rails were shiny after a days
running the signals worked correctly. Of course welding steel ties across all rails has put an end to that
method of circuit control and new scheme is (almost) on the drawing board.
The
new standard of track laying has proved to be highly successful. In essence each 20 foot section of track is
a single entity, the radius being locked in by the welded ties. Maintenance consists of routine ballasting
as necessary and lubrication of the fishplates and points. Softwood sleepers are being replaced with
recycled plastic and this has further reduced maintenance giving us more time
for other projects.