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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Pilot watch slide rules
From: Tony Oz
Date: 2019 Dec 30, 22:15 -0800
From: Tony Oz
Date: 2019 Dec 30, 22:15 -0800
Dear Paul, you said:
Even more mysterious are two scales on this "Explorer" watch, one graduated up to 15 and the other to 165 — ?
This it the hours-to-degrees convertion scale. Just as on Linbderg-Weems watches but without the EoT (the equation of time) feature. Probably intended for GHASun calculation.
Regards,
Tony
60°N 30°E
