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Well,

I never tried, and I trust Robert's
experience.

I tried an ordinary sextant (SNO)
on a small boat in Atlantic, and heavy sea,
and I found it extremelly tricky to keep
the Sun in the field of view.
I could only do observations without a scope,
and the accuracy was poor.

Alex.

On Tue, 6 Mar 2007, Robert Eno wrote:

> Bill wrote:
> > Do you feel one would stand a chance of keeping the bubble and object
> > aligned on s small craft in heavy seas?

> > Bill
>
> Robert responds:
>
> When pigs learn to fly.
>
> I have tried bubble horizons at sea on numerous occasions. Even in a
> moderate sea, the bubble scoots around like a ferret on speed. An averager
> won't help in this case because it will just average out a series of
> demented observations. The averager was designed for the relatively smooth
> platform of large aircraft. It was never intended for use at sea.
>
> Trust me, I have tried many times. Even on a calm sea, using a bubble
> horizon can be tricky.
>
> cheers,
>
> Robert
>
>
>
> >


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