Aviation uses buttlines, stationlines, waterlines, lofting and the
XYZ zero is a distance in front of the plane.

On Fri, Jun 12, 2009 at 4:09 PM, <cmg...@sover.net> wrote:
>> 2009/6/12 Douglas Pollard <dougp...@verizon.net>:
>>
>>> But what difference does base 10 make to a guy running a cnc machine??
>
>
> The aviation industry stepped around the imperial system of linear
> measurement by ONLY using inches and decimal portions of them.
> Stations and waterlines!
>
> Don't civil engineers use a "foot" of ten "inches" in the US ?  Perhaps
> not any more>
>
> Cal
>
>
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-- 
you can lead a person to knowledge
but you cannot make him think

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