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Discussion in 'The Pub' started by TonyE, Aug 28, 2009.

  1. The US standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches.

    That's an exceedingly odd number. Why was that gauge used?

    Because that's the way they built them in England, and English expatriates built the US railroads.

    Why did the English build them 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 that they used for building wagons, which used that wheel spacing.

    Okay! Why did the wagons have that particular odd wheel spacing?

    Well, if they tried to use any other spacing, the wagon wheels would break on some of the old, long distance roads in England, because that's the spacing of the wheel ruts...

    So who built those old rutted roads?

    Imperial Rome built the first long distance roads in Europe (and England) for their legions. The roads have been used ever since.
    And the ruts in the roads?

    Roman war chariots formed the initial ruts, which everyone else had to match for fear of destroying their wagon wheels.

    Since the chariots were made for Imperial Rome, they were all alike in the matter of wheel spacing.

    The United States standard railroad gauge of 4 feet, 8.5 inches is derived from the original specifications for an Imperial Roman war chariot. And bureaucracies live forever.

    So the next time you are handed a specification and wonder what horse's ass came up with it, you may be exactly right, because the Imperial Roman army chariots were made just wide enough to accommodate the back ends of two war horses.

    Now the twist to the story

    When you see a Space Shuttle sitting on its launch pad, there are two big booster rockets attached to the sides of the main fuel tank. These are solid rocket boosters, or SRBs. The SRBs are made by Thiokol at their factory at Utah.

    The engineers who designed the SRBs would have preferred to make them a bit fatter, but the SRBs had to be shipped by train from the factory to the launch site. The railroad line from the factory happens to run through a tunnel in the mountains.

    The SRBs had to fit through that tunnel. The tunnel is slightly wider than the railroad track, and the railroad track, as you now know, is about as wide as two horses' behinds.

    So, a major Space Shuttle design feature of what is arguably the world's most advanced transportation system was determined over two thousand years ago by the width of a horse's ass.

    ..... and you thought being a HORSE'S ASS wasn't important!
  2. Gold absolute gold!
    And I thought the law was archaic!
  3. That actually doesn't "bust" the story.
    It points out that most of the core elements have some level of truth, but through sheer providence or accident, more than planning.
  4. If standard gauge is 4'8.5" or two horse arses wide, eg NSW Railways
    Why is Victoria's rail gauge 5'3"?
    Do we have bigger horses arses?
    SA and other states have 3'6" gauge, or smaller Horses arses?
  5. Fair question
  6. I believe that standard guage in Australia is 4 foot 8 inches, I have never heard it mentioned that it was 4 foot 8.5 inches.
    I did work in the railways for a lot of years.
  7. It is definitely 4 foot 8.5
  8. #9 Mr Flibble, Aug 30, 2009
    Last edited by a moderator: Jul 13, 2015
    That picture reminds me of the train used in Buster Keaton's 'Our Hospitality'. Tried to find an excerpt on you-tube, the best I could come up with was H59Z1C8a0rk[/media]]this - it shows the train briefly...

    Great film - Buster was a genius I reckon.
  9. Rail is the 19th Century way of moving things around, except for people in big cities.
  10. So how should all that coal and iron ore be moved around then? Miles of trucks perhaps?

    What about the very fast intercity trains in Europe, Japan and elsewhere? Reasonably modern way of traveling...

    Rail will be with us for a while yet, I reckon.
  11. Surely the benefit of a wider gauge is a combination of higher speed for wider loads? Narrow gauge would seem excessively risky for high speed operation; but I'd imagine you'd have to prepare a narrower bed and smaller sleepers, etc, hence an economic saving - Kind of like the Cane Railways in Queensland, it looks like the tracks up there are only 2 1/2 foot wide!