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    6080 ft vs 1852 m
    From: Dan Allen
    Date: 2007 Oct 22, 17:36 -0600

    Occasionally you will see a reference to an "Admiralty mile".  In the  
    1800s this was used by England and was 6,080 feet long.
    Today England uses a new "nautical mile" and it is a bit shorter at  
    1852 meters exactly, or 6,076.1155 feet long.
    Q1:  Does anyone still use the older, slightly large British nautical  
    mile?  Do any parts of England still refer to it?
    Q2:  Why was the change made?  Was it part of the move to metric in  
    the 1970s?
    I know that the distance of a nautical mile was originally to be  
    1/10,000,000th of the distance from the equator to the poles but  
    early estimates of this distance were out a bit.  Was this an  
    influence on the adoption of a "new" nautical mile?
    Dan Allen
    N39.997� W111.757�
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