Atlas N Code 55 turnouts...

Can someone clue me into the code behind the turnout numbers? Is this a standard notation or is it specific to Atlas?

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D. Thompson
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"D. Thompson" wrote


"Code" = height of the rail quoted in thousandths of an inch.

i.e. code 55 = .055" code 80 = .080" code 100 = .100"

Reply to
Dont Know My Name

As for the #5 or #7, it is a measurement of how far the diverging rail is angled away from the straight rail, as in 1' of deflection for every 5' of linear distance. (which is a #5).


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