Fastrack numbers

[gunrunnerjohn]

The .008 is to allow water to run under the roadbed.

[lionelsoni]

From time to time, a track-geometry or other question comes up on the forum that depends on the Fastrack specifications.  I don't use Fastrack; and my Internet searches have never turned up anything useful, other than that the standard length of a straight piece is 10 inches.  So I bought a 6-12016 "terminal section" to measure.  I'll post the numbers here for anyone who might need them:

The roadbed width is 3 11/32 inches.  The railheads are about .64 inch above the table.  The ounting-screw holes are .105 inch in diameter, but will take a flathead number-4 (.112 inch) screw with a little forcing.  The Faston connector tabs are .125 inch wide.  FE lists only one female connector for that unpopular size tab, 63705-1.  It might be possible to force a .110-inch female on.  Or, with a little Dremel work they could be cut down to .110 inch.  However, a .187-inch female seems to work.  The spade lugs on the other ends of the supplied cable will fit on a number-10 screw.  However, the conductors are quite small, perhaps 20 AWG, and likely unsafe for more than about 4 amperes.

There is a post cast into the plastic under the longer pin at each end of the section, which is meant to snap into a slot at the next section's shorter pin.  For no obvious reason, this post protrudes below the roadbed by about .008 inch.