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    Re: Missile Subs
    From: Frank Reed
    Date: 2012 Apr 12, 15:35 -0700

    Alex, you wrote:
    "What's QM ET?"

    Quantum Mechanics and Extra Terrestrials. It all goes back to Roswell... :)

    Actually, QM is "quartermaster". They're the navigators on USN ships. It's a non-commissioned officer rank. And I believe ET is "electronics technician".

    And:
    "SINS is a ship inertial navigation system, correct?"

    If it hasn't been mentioned yet, it's interesting to note that there were big delays developing SINS back in the late 1950s so the Navy scavenged an excellent inertial system from a canceled and terribly over-budget supersonic cruise missile: the "Never Fly Navaho". This system was installed on both USS Nautilus and USS Skate. After Nautilus crossed the Arctic in four days, a celestial fix showed that the INS was only off by a few miles. And that was a first-generation INS.

    -FER

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