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    Re: RIP the [Fluxgate compass /benefits of 3 axis] ?
    From: Jared Sherman
    Date: 2002 Feb 3, 21:07 -0500

    Dan-
     Obviously I have some interest in celestial but when I hear  that arguement against GPS 
    holds no water. One can break a sextant quite easily, in fact I defy anyone 
    to drop a sextant 4' to a hard deck and then use it again. Most GPSes can 
    tolerate a similar drop, or at least a good fumble bouncing on one's feet. 
    Most sextants can't.
     If you have a sextant you need a backup, figure $500 for the first sextant 
    and $125 for the cheap Davis backup. That's enough money for six GPSes or 
    four GPSes plus two solar chargers, four sets of rechargeable batteries, and 
    a gross or so or regular batteries as well.
    
     Sorry, but "the dog ate my navigational instrument" doesn't have any bearing 
    on the choice of instrument, in fact it makes the GPS more "reliable" since 
    you can carry 4-6 of them for the price of a minimal sextant with backup. As 
    for the entire GPS constellation going down...if THAT happens the odds are 
    that WW3 has broken out or aliens have arrived with an attitude. In either 
    case navigation will be the least problem.
    
    
    

       
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