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    Re: Early Land Navigation.
    From: Greg Rudzinski
    Date: 2015 Feb 10, 06:43 -0800

    Here is a link to a trailer for Operation Grand Canyon. Sam Willis did some darn good GoPro video on this. See the sextant being used at second 14 to 18. Can anyone identify the make?

     

    http://www.sam-willis.com/sams-media/operation-grand-canyon-bbc2/

     

    Greg Rudzinski

     

    From: Don Seltzer
    Date: 2015 Feb 10, 09:19 -0500

     
    Two years ago, historian Sam Willis stopped by this forum for advice
    on land navigation.  He was about to participate in a re-enactment of
    the 1869 Powell Expedition down the Colorado River, through the Grand
    Canyon.  He was hoping to use a sextant to take some readings, but was
    faced with the same problem of a high summer sun and an artificial
    horizon.
    
    The expedition was co-sponsored by the Discovery Channel and BBC, but
    I don't think the program ever aired in the US.  I don't know if he
    succeeded in taking any sightings.
    
    Don Seltzer

     

     

     

       
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