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    Global Hawk crash due to deactivated backup navigation
    From: Frank Reed
    Date: 2018 Sep 27, 12:21 -0700

    A NavList lurker sent me this article about backup navigation failure in an RQ-4B Global Hawk automated aircraft (the word "drone" has begun to cover too many things... a Global Hawk is a full-sized robot aircraft):

    https://www.airforcetimes.com/news/your-air-force/2018/09/26/faulty-nav-data-caused-drone-to-enter-fatal-dive-break-apart/

    This is not relevant to traditional navigation except that it's a lesson in the philosophy of backups. 

    Frank Reed

       
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