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    Re: Quartz article: reinstating celestial...
    From: Lu Abel
    Date: 2015 Oct 23, 19:08 +0000
    Francis (and David Pike in another post):

    As an electronics engineer, I can see no reasonable scenario where the sophisticated electronics and backup electronics on a modern Navy ship (almost regardless of whose flag it's flying) could suddenly become so totally inoperative that the crew would have to rely on celestial unless there were a massive act of war (eg, taking out all GPS satellites) -- at which point the ability of a single ship to find its position at sea will be a *very* low priority for the nation's navy.

    David:   as to the issue of "air-gapping," I suspect that much of a ship's electronics is NOT connected to the Internet.

    From: Francis Upchurch <NoReply_Upchurch@fer3.com>
    To: luabel@ymail.com
    Sent: Thursday, October 22, 2015 2:27 PM
    Subject: [NavList] Re: Quartz article: reinstating celestial...

    If we are talking nuclear armagedon, do we really care where we are as apposed to who we are?
    I suspect all modern warships, aircraft and everything else military is dead without sophisitated electronics, am I right?We are basically back to spears and arrows. Maybe we should refloat HMS Vivtory, currently dry docked in Portsmouth?
    I hate to think our wonderful hobby is all about survivalist post nuclear holocaust?
    I am sceptical that we need to justify a return/preservation of cel nav purely on the basis of military worst case. I think our art is good for the univeral soul and useful anyway.
    Best as always

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