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"and we also have quite a few sets of Greg Rudzinski's neat navigation
tools which will also be given away."


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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.

gl

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
>
>
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