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    Re: Two weeks to Mystic "Navigation Weekend"
    From: Gary LaPook
    Date: 2010 May 25, 01:53 -0700

    "and we also have quite a few sets of Greg Rudzinski's neat navigation
    tools which will also be given away."
    I used one of Greg's kamals on March 16, 2010 from a breakwater at
    Channel Islands harbor in California. I took two sights of the sun, an
    upper limb 9 degree altitude and  a lower limb 8 degree altitude. Using
    the gps coordinates as the AP and allowing for an estimated height of
    eye of ten feet I got intercepts of 3.2 A and 3.2 A! Both exactly the
    same. Part if the intercept may result from a mis-estimation of the
    height of eye. But what really surprised me was the sigma of zero (but a
    small sample). Maybe it was just luck but I was really surprised and
    impressed with the accuracy of this simple device.
    Frank Reed wrote:
    > Just two weeks to the 2010 "Navigation Weekend" at Mystic Seaport!
    > Since we've had a number of cancellations and changes, and since many
    > people have expressed concern about spending money in these times of
    > "economic uncertainty," I am trying to arrange to squeeze all of the
    > "significant" presentations of the Navigation Weekend into one day:
    > Saturday, June 5. We will still have some activities for Friday
    > afternoon, but they would be largely informal (behind-the-scenes tour
    > at Mystic Seaport, e.g., a pleasant dinner nearby, and a possible
    > media event for NavListers). But for those of you trying to plan how
    > to save money, you would have the option of arriving bright and early
    > Saturday morning without missing much. A slightly revised schedule
    > will be posted tomorrow if no one objects to that change.
    > Please note that David Burch has donated books for everybody. These
    > will be distributed during our buffet dinner Saturday evening. Ken
    > Gebhart will be donating some books from Celestaire, too, and we also
    > have quite a few sets of Greg Rudzinski's neat navigation tools which
    > will also be given away. So in short: lots of free stuff!
    > Unfortunately, David Burch will not be able to attend after all for
    > personal reasons which I thoroughly understand, and I wish him well.
    > Instead, I am putting together one more presentation from me for our
    > dinner talk. Perhaps a detailed account of the celestial navigation,
    > lunars and otherwise, aboard H.M.S. Bounty 1787-89. That's a fun
    > topic, and since I've just finished working through that logbook a
    > second time, it's all fresh in my head. So Saturday dinner becomes
    > "Grub, grog, loot, and a mutiny".
    > For anyone relatively new to NavList, this "Navigation Weekend" is
    > open to one and all, NavList and otherwise. This is the third biennial
    > event and our focus, as always, is on advanced topics in traditional
    > navigation. This year the primary foci will be the obligatory lunars
    > and also aerial celestial navigation thanks to Gary Lapook's
    > participation. There will be other presentations on complex analysis
    > in celestial navigation (juicy math for those who like their math
    > juicy!) and USN Navigational practice, as well as circular instruments
    > of reflection and the "scandalous" or not so scandalous legacy of
    > Nathaniel Bowditch in celestial navigation. It's not too late to
    > reserve a place, so if anyone is interested, contact me by private
    > email at FrankReed[at]HistoricalAtlas.com. There is a small fee for
    > attendance as well as the cost of the buffet dinner.
    > -FER
    > ----------------------------------------------------------------
    > NavList message boards and member settings: www.fer3.com/NavList
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