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Re: Bubble Sextants
From: Peter Fogg
Date: 2008 Dec 16, 11:26 +1100

Welome Garry

As an initial step, try entering some of those terms, eg; "bubble sextant", etc, into the Search box at:

http://www.fer3.com/arc/

There has been much discussion of these devices on this List and you will find a wealth of information there. Then feel free to pose further questions here, as quite a few members use and have restored such machines (although I'm not one of them!).

On Tue, Dec 16, 2008 at 1:40 AM, JODIE COST <gjmooseair@yahoo.com> wrote:

I am a commercial pilot here in Alaska and just starting my education in celestial navigation and I have two questions for the group.

As I have yet to find anyone teaching celestial navigation in the Anchorage area what home study courses or text do you recommend ?

Since I plan on using these skills on land and from the cockpit I an interested in a good bubble sextant, but which one? From what I've read, the R.A.F. MK IX seems to be highly recommended but I have yet to find a reliable source for them ( I won't use ebay for the purchase precision instruments). The U.S.Navy MK 5 and the U.S.A.A.F. A-14 are available in overhauled condition but don't seem to be as highly recommended as the MK IX.

Since I plan to use this sextant for navigation in flight would an averaging device be useful?

Thank you in advance for your help.

Garry Cost

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