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Jeremy -

Wow, 10' zenith distance sights are really up there. I once did one at
20' and that had me dancing a complete circle around the cabin top of
a 46-foot ketch.

Thanks again for giving a notion of what a CG celestial exam question
looks like.

Hewitt

PS Would the CG allow a bow-compass in an exam? I've used one for
years in routine plotting because it makes a pencil line on the sheet
instead of a dent.  H

On 7/21/08, Anabasis75@aol.com  wrote:
>
> H
>
>
>
> I've long been curious to discover just how close one could come with
> the super-basic method of advancing arcs or circles position at the
> standard Universal Plotting Sheet scale, which is why I was glad to be
> presented with Jeremy's example from a CG exam.
>
> Thanks again,
>
> Hewitt
>
>
> Hewitt,
>
> If you look through my navigation notebook from the TS TEXAS CLIPPER, there
> are at least 2 high-altitude sun sights.  Unfortunately at that time, I did
> not know about the methods of taking 2 shots a few minutes apart and didn't
> do intersecting circles.  If my memory serves me, the Z-distance was about
> 10 nm, which actually was quite a hindrance to try and get position better
> then that.
>
> Andres "cheated" a bit with the problem as he used a computer which
> certainly wouldn't be allowed in the exam room, but it does show how the
> circles work when reduced at sea.  I haven't had the chance to shoot any
> high altitude sun sights lately, but I will be mindful when I am at sea and
> will try to get some if it is possible.
>
> Jeremy
>
>
>
> ________________________________
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> Football today.
>  >
>

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