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    Re: Advice for buying a (second-hand?) sextant
    From: Greg Rudzinski
    Date: 2022 Feb 28, 10:54 -0800

    Martin,

    Sextants that have been stored a long time can get stifff due to old grease.  I have had luck with cleaning used sextants of old grease and lubricating with synthetic clock oil. New 4x40mm C&P, Tamaya, Astra, and Celestair scopes are all good.  Preferred accessories are whole horizon mirror and the Davis artificial horizon.  I'm not a fan of bubble horizons on a standard sextant. There are many affordable second hand aircraft octants that do better with the bubble horizon. Budget at least $450 and head to Ebay.

    Greg Rudzinski

       
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