-------------  FWDED MSG  ----------------
    This is a forwarded message, originally posted on 09/26/95 15:42 by
    "Paul Atkinson@INTERNET"@[paulatk@microsoft.com]
__________________________________________________________________
forwards gone down the track....

US Standard Railroad Gauge
           or
How MilSpecs Live Forever
 --------------------------

The US standard railroad gauge (distance between the rails) is 4 ft 8 1/2
in (1.44 m).  That's an exceedingly odd number.

Why is that gauge used?  Because that's the way they built them in England,
and the US railroads were built by English ex patriots.

Why did the English build 'em like that?  Because the first rail lines were
built by the same people who built the pre-railroad tramways, and that's
the gauge they used.

Why did *they* use that gauge then?  Because the people who built the
tramways used the same jigs and tools as they used for building wagons,
which used that wheel spacing.

OK!  Why did the wagons use that wheel spacing?  Well, if they tried to use
any other spacing the wagons would break on some of the old, long distance
roads, because that's the spacing of the ruts.

So who built these old rutted roads?  The first long distance roads in
Europe were built by Imperial Rome for the benefit of their legions.  The
roads have been used ever since.

And the ruts?  The initial ruts, which everyone else had to match for fear
of breaking their wagons, were first made by Roman war chariots.  Since the
chariots were made by or for Imperial Rome they were all alike in the
matter of wheel spacing (ruts again).

Thus we have the answer to the original question.

The United States standard railroad gauge of 4 ft 8 1/2 in derives from the
original military specification (MilSpec) for an Imperial Roman army war
chariot.  MilSpecs (and bureaucracies) live forever!


 ----------
Subject: Followups to "How MilSpecs Live Forever"
Date: Thursday, February 10, 1994 6:00PM


Fascinating. I showed this to my wife, medieval studies major and
horsewoman, who points out that the spacing of wheels on the Roman
chariot was like as not dictated by the width of the yoke that attached
the chariot to the horse, and the need to keep the wheel ruts well out
of the path of the loose earth the hooves are kicking up.

Thus, the gauge of the Iron Horse might be in fact derived from the
width of the standard Roman warhorse.

 From: claude@espresso.rt.cs.boeing.com (Claude Ginsburg)
 Subject: Rail Gauge (continued)

....when Napoleon marched on Russia, his army made much slower time than
planned once they reached eastern Europe because the ruts weren't to
Roman gauge.  Because they made slower time than planned ...
they got caught in the field in the Russian winter rather than on the
outskirts of Moscow. And then, of course, they lost the war.

------------------- END FWD ---------------------