NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Another Davis Instruments Mark 15 Question
From: Rodney Myrvaagnes
Date: 2003 Feb 28, 23:28 -0500
From: Rodney Myrvaagnes
Date: 2003 Feb 28, 23:28 -0500
On Fri, 28 Feb 2003 17:08:13 -0500, George Istok wrote:
>I have been corresponding with someone at Davis Instruments who has just
>informed me that the accuracy rate of the Mark 15 sextant is +/- 5 degrees.
>I am hoping there is a typo somewhere in his message. Also, I am not sure
>what accuracy rate means. Even though the sextant is plastic, low cost,
>etc., surely it has better accuracy than 5 degrees. Any thoughts?
>
I have no idea what "accuracy Rate" means, but I had no trouble getting
fixes within two miles with a Davis on a 32-ft light-displacement boat
in reasonable sea conditions.
Any plastic sextant requires an index check between sights because of
thermal drift.
Rodney Myrvaagnes NYC
J36 Gjo/a
"Curse thee, thou quadrant. No longer will I guide my earthly way by thee." Capt. Ahab
