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    Re: Seeking advice for bubble repair on a Plath aircraft octant
    From: Bill Morris
    Date: 2009 Apr 8, 21:14 -0700

    Thanks for help from Alex Eremenko in translating parts of the handbook for 
    the Russian IMS 3 octant. The fluid used in this aircraft octant was 
    definitely refined ethyl alchohol (the same sort of alcohol that is used as a 
    social lubricant). As it is clearly derived from the Plath SOLD octant, the 
    latter almost certainly used alcohol too. I will try to post instructions and 
    pictures to describe how to remove the bubble assembly and refill it on my 
    blog (www.sextantbook.com) sometime in the next few days.
    
    Bill Morris
    Pukenui
    New Zealand
    
    
    
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