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    Re: Relative bearings
    From: Bill B
    Date: 2015 Apr 15, 15:31 -0400

    On 4/14/2015 9:41 PM, Lu Abel wrote:
    > A very favorite "trick" question on navigation exams is "You observe a
    > vessel off your port bow.  Its relative bearing is decreasing.   This
    > means the vessel will pass (a) ahead of you, (b) aft of you."  Many will
    > answer "pass ahead" because they think the angle on the bow is decreasing.
    Funny. A variation is very handy for inland dinghy racing where one
    often finds themselves in a crossing situation without ROW. Is the other
    boat moving faster or slower relative to the shore? If faster you will
    pass astern, if slower you will safely cross their bow. Amazing how
    accurate it is even when the change of angle is verry small.
    It is also useful when converging on opposite tacks to weather. If you
    know you you would cross their bow several boat lengths ahead, it gives
    you the option of lee bowing a buddy if it is to your advantage.

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