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A regular drill will do. I can't remember the size. I just made sure it was
big enough for the split ring. Make sure you center punch it before you
start drilling.

The practice bubble horizon is difficult to use. There is no magnification.
The slit aperture makes me see double of the reference line in the sight.
Combine that with trying to hold the sextant steady so the bubble is
centered while adjusting the sight ... it can be frustrating.

Sam
----- Original Message -----
From  "Yves Arrouye" 
To: 
Sent: Monday, April 23, 2001 9:12 PM
Subject: Re: Astra IIIB


> Good trick. What did you drill with? A dremel?
>
> I ordered my Astra IIIB (split horizon) at the Pacific Sail Expo last
Sunday
> (they had sold everything they had there). It should be here soon. I am
very
> excited. I also ordered a bubble practice horizon to take plenty of sights
> in my back yard instead of driving to the bay or (even farther) the ocean
> for practicing.
>
> Now, I am going to Hong-Kong for a week and I just thought that maybe I
> should have looked for a good price on a Tamaya or even a European sextant
> there, before ordering the Astra. Oh well. I am sure the Astra will be
very
> nice, its owners sound pretty happy with it.
>
> YA
>

   

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