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    Re: Steering accurately
    From: Eric Haberfellner
    Date: 2002 Oct 4, 20:38 -0400

    Which Autohelm Unit is this? I have recently installed an ST 4000+MK2.
    As long as we are on this topic, is it normal for the Raymarine fluxgate
    compass to constantly vary its reported heading +/- 3 degrees from the
    magnetic compass heading even when the boat is tied securely to a wall in
    calm conditions with no moving, rolling, pitching or yawing. No one is down
    below moving large iron masses, the engine is not running and all other
    electrical or electronic equipment is off.
    If this message is too far off topic, I apologize.
    Eric Haberfellner
    -----Original Message-----
    From: Navigation Mailing List
    [mailto:NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM]On Behalf Of Peter Fogg
    Sent: Friday, October 04, 2002 8:10 PM
    Subject: Steering accurately
    Arthur Pearson wrote:
    > anyone who can steer within 0.5 degrees, please email me
    > with instructions
    Autohelms can do this - they can steer with an accuracy that seems beyond
    any mortal. We have found the best way to steer downwind flying a
    spinnaker, or with the headsail out on the end of a whisker pole on the
    side opposite the main (goosewinged) is with one person not at the helm but
    with a finger poised over the unit feeding in one degree correction changes
    as necessary.

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