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    Re: Comments on the units
    From: Alexandre Eremenko
    Date: 2006 Apr 7, 16:32 -0400

    Interesting!
    So the American artillerists sacrifice the ease of calculation
    to higher precision.
    A
    
    Alex Eremenko
    Department of Mathematics
    Purdue University
    West Lafayette IN 47907-2067
    
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    On Fri, 7 Apr 2006, Royer, Doug wrote:
    
    >
    > Alex wrote:
    > And the compass ("bussole" in Soviet artillery,
    > but compass in the Soviet Navy)
    > was divided into 60 parts, correct?
    >
    > Do US and British Armies use degrees?
    > A.
    >
    > On Fri, 7 Apr 2006, jean-philippe planas wrote:
    >
    > > The French artillery (and infantry)
    > > uses division called "thousandth" (milli?me") as well. "One Thousandth"
    > > is the angle of an object one meter high seen from a 1000m (1 km
    > > distance) with the same conclusions as Alex.
    > >   JPP
    >
    > In the US military (land forces at least) a recruit is trained for land nav
    > using compasses/optics that are graduated in degrees and mils.
    > In the US equipment there are 6400 mils to 360 degrees. And on long range
    > optics (rifle scopes, arty optics etc) there are markings on the horizontal
    > and vertical stadia for range finding. These markings (round dots) are 1 mil
    > in diam. Because 1 mil subtends a certain area at certain ranges these
    > optics give good results in range finding.
    > I had a Russian (Soviet actually) compass a few years ago. It, as you
    > stated, was marked in 6,000 units instead of the 6,400 units I was used to
    > using. It was confusing as I always had to think about the difference when
    > using it instead of just using the equipment. I got rid of the Soviet
    > compass. Not because of inferior quality of the compass but I am comfortable
    > using 6400 mils to a circle.
    >
    
    
    

       
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