NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bill Morris
Date: 2013 Sep 6, 17:12 -0700
Randall,
Most modern sextant telescopes (i.e.post-WWII) have a male vee below and a flat above and are more-or-less interchangeable. Though the fit may not be perfect, this does not usually matter, as long as the 'scope is held without shake and there is no appreciable collimation error. The latter can be checked rapidly by checking that the face of the objective lens mount is square to the frame of the sextant.
My Freiberger drum sextant is an exception, for it has a female vee below and a flat above.
Bill Morris
Pukenui
New Zealand.
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