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On Tue, 06 Nov 2007 16:07:22 -0700, Greg Rudzinski
 wrote:

> GPS and Celestial Navigation can be complementary primary means of
> navigation. A quality sextant used with a Palm PDA that has celestial,
> almanac, and chronometer software installed will yeild a line of
> position in less than a minute.  The back-up roll now belongs to the
> Pub 249 tables. The Palm PDA can do tides and piloting duties as well.
>
Even without the sextant, there is software available to turn the Palm
display screen into a sun compass.  I believe a vertical gnomen, held in
the right position to match a shadow line from the sun to the one drawn on
the level screen, is all that is required.


--
Richard . . .

Using Opera 9.2.4 after the "Dog" died

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