Some handy techniques for Model Railroaders
Signal Mast Heights
From the Wikipedia entry on railroad signals: "Signals are most commonly mounted
on trackside masts about 12 feet (3.7 m) to 15 feet (4.6 m) high to put them in
the eyeline of the engineer. Signals can also be mounted on signal bridges or
cantilever masts spanning multiple tracks. Signal bridges and masts typically
provide at least 20 feet (6.1 m) of clearance over the top of the rail." Thus,
a trackside signal of 15' in height would come out to about 2.8" in S scale.
The full article on Wikipedia can be found at North American Signals
Here are two tools for measuring distances on plans
or model railroads. The wooden one is useful
on actual roadbed. The pounce wheel is useful on plans.
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